The expected number of days Pete will catch fish when he goes fishing 3 days next week, given that the probability of catching fish on any given day is 0.88, is 2.64 days.
In this problem, we are interested in the number of days Pete catches fish when he goes fishing three days next week. We define a random variable X to represent the number of days he catches fish. Since each day is an independent trial with a constant probability of success, we can model the number of days Pete catches fish as a binomial distribution.
The binomial distribution is characterized by two parameters: n and p, where n is the number of trials and p is the probability of success in each trial. In this case, we have n = 3 (Pete is going fishing three days) and p = 0.88 (the probability that Pete catches fish on any given day). Therefore, the probability mass function of X is
P(X = k) = (3 choose k) × 0.88^k × (1-0.88)^(3-k)
where k = 0, 1, 2, or 3.
The expected value of a binomial distribution is given by the formula:
E(X) = n × p
Therefore, in this case, the expected number of days Pete catches fish is
E(X) = 3 × 0.88 = 2.64
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A ball is thrown into the air with an initial upward velocity of 48 ft/s. Its height (h) in feet after t seconds is given by the function h=-16t^2+48t+64. After how many seconds will the ball hit the ground?
Answer: Let the experienced one help you out! Therefore, the ball hits the ground after 4 seconds. Read the explanation down below:
Brainliest?
Step-by-step explanation:
To find when the ball hits the ground, we need to find the value of t when h=0, since at that point the height of the ball is zero, indicating that it has reached the ground.
We have the equation:
h = -16t^2 + 48t + 64
Setting h to zero, we get:
0 = -16t^2 + 48t + 64
Dividing both sides by -16, we get:
0 = t^2 - 3t - 4
Now we can use the quadratic formula to solve for t:
t = (-b ± sqrt(b^2 - 4ac)) / 2a
where a = 1, b = -3, and c = -4.
Plugging in these values, we get:
t = (-(-3) ± sqrt((-3)^2 - 4(1)(-4))) / 2(1)
t = (3 ± sqrt(9 + 16)) / 2
t = (3 ± 5) / 2
So we have two solutions:
t = (3 + 5) / 2 = 4
t = (3 - 5) / 2 = -1
The negative solution doesn't make sense in this context, so we discard it. Therefore, the ball hits the ground after 4 seconds.
which probability is equal to 4/5?
the probability that is equal to P(Q) is P(Q).
Option A is correct.
What is probability?
The likelihood of an event is quantified by its probability, which is a number. In terms of percentage notation, it is expressed as a number between 0 and 1, or between 0% and 100%. The higher the likelihood, the more likely it is that the event will take place.
Types
There are three major types of probabilities and they include:
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a p-value a. can be positive or negative. b. is a probability. c. can be smaller than 0 but no larger than 1. d. can be larger than 1 but no smaller than 0. e. can only range in value from -1 to 1.
A p-value is a probability.
A p-value is the probability of obtaining a test statistic as extreme or more extreme.
The observed value, assuming the null hypothesis is true.
It ranges in value from 0 to 1 and represents the strength of evidence against the null hypothesis.
A p-value cannot be negative, as it is a probability and probabilities are always between 0 and 1.
A p-value also cannot be larger than 1, as it represents a probability.
A probability cannot exceed 1.
Finally, a p-value cannot be smaller than 0, as it represents a probability.
A probability cannot be negative.
the correct option is b. is a probability.
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Helppp please!!!'!!!!!!!!!!
Answer:
The domain is {-1, 3, 5}, so D is correct.
Sarah took the advertising department from her company on a round trip to meet with a potential client. Including Sarah a total of 12 people took the trip. She was able to purchase coach tickets for $190 and first class tickets for $980. She used her total budget for airfare for the trip, which was $4650. How many first class tickets did she buy? How many coach tickets did she buy?
Sarah then purchased 9 coach seats as by increasing the first equation by 190 and deducting it from the second equation.
what is equation ?An equation is a logical statement that utilises the equal sign to demonstrate the equality of two expressions. Factors, constants, and mathematical like addition, reduction, multiply, division, and exponentiation can all be found in it. Equations are utilised to find solutions for problems in both mathematics and the real world.
given
Let's use the letters "c" for the quantity of coach tickets and "f" for the quantity of first-class tickets. We are aware that there were 12 travellers in all, so
c + f + 1 = 12
We also know that the entire cost of the airfare was $4650, with coach tickets costing $190 and first-class tickets costing $980. With this knowledge, we can construct the equation shown below:
[tex]190c + 980f = 4650 - 980[/tex]
When we simplify this equation, we obtain:
[tex]190c + 980f = 3670[/tex]
Elimination can now be used to find either "c" or "f." By increasing the first equation by 190 and deducting it from the second equation, let's get rid of "c":
[tex]190c + 190f + 190 = 2280[/tex]
-190c - 980f = -3670
-790f = -1390
f = 1.76
We can round "f" up to 2 because we cannot have a fractional number of persons.
c + 2 + 1 = 12
c = 9
Sarah then purchased 9 coach seats as by increasing the first equation by 190 and deducting it from the second equation.
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d. Amanda
is considering changing her regimen by running two miles the first week and then running
additional two miles each subsequent week. Write a sequence for the number of miles that Amanda
would run the first 10 weeks of her training if she followed the new regimen. Explain your reasoning.
Answer: If Amanda runs two miles the first week and then adds two miles each subsequent week, we can create a sequence using arithmetic progression. The common difference between each term in the sequence is two, and the first term is two.
Using the formula for the nth term of an arithmetic progression, we can find the number of miles Amanda would run in the first 10 weeks of her training:
an = a1 + (n-1)d
where:
an = the nth term of the sequence
a1 = the first term of the sequence (2 miles in the first week)
n = the number of terms (up to 10 weeks)
d = the common difference between each term (2 miles per week)
So for n = 1 to 10, we have:
a1 = 2
d = 2
n = 1: a1 + (n-1)d = 2 + (1-1)2 = 2
n = 2: a1 + (n-1)d = 2 + (2-1)2 = 4
n = 3: a1 + (n-1)d = 2 + (3-1)2 = 6
n = 4: a1 + (n-1)d = 2 + (4-1)2 = 8
n = 5: a1 + (n-1)d = 2 + (5-1)2 = 10
n = 6: a1 + (n-1)d = 2 + (6-1)2 = 12
n = 7: a1 + (n-1)d = 2 + (7-1)2 = 14
n = 8: a1 + (n-1)d = 2 + (8-1)2 = 16
n = 9: a1 + (n-1)d = 2 + (9-1)2 = 18
n = 10: a1 + (n-1)d = 2 + (10-1)2 = 20
Therefore, Amanda would run 2, 4, 6, 8, 10, 12, 14, 16, 18, and 20 miles in the first 10 weeks of her training if she followed the new regimen.
Step-by-step explanation:
answer this question
Required value of X is 1.
What is equation?
An equation is a that asserts mathematical statement that two expressions are equal. It consists of two sides, the left-hand side and the right-hand side, separated by an equals sign. An equation can contain variables, constants, coefficients, and operators. The goal is to find the value(s) of the variable(s) that make the equation true. Equations are used in many branches of mathematics and in various applications, such as physics, chemistry, engineering, and economics.
To solve for the value of x, we need to isolate x on one side of the equation. We can do this by subtracting 3 from both sides of the equation,
X + 3 - 3 = 4 - 3
Simplifying the left-hand side gives,
X = 1
Therefore, the value of x is 1.
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Correct question is "Answer the question,
X+3 = 4,
What is the value of x?"
Election polling Gloria Chavez and Ronald Flynn are the candidates for mayor in a large city. We want to estimate the proportion p of all registered voters in the city who plan to vote for Chavez with 95% confidence and a margin of error no greater than 0.03. How large a random sample do we need? Show your work.
A random sample of approximately 1067 registered voters is needed to estimate the proportion of voters planning to vote for Chavez with 95% confidence and a margin of error no greater than 0.03.
To estimate the proportion p of all registered voters in the city who plan to vote for Chavez with 95% confidence and a
margin of error no greater than 0.03, we need to determine the sample size. We can use the following formula for
sample size calculation:
[tex]n = (Z^2 × p × (1-p)) / E^2[/tex]
Where:
- n is the sample size
- Z is the Z-score (1.96 for 95% confidence)
- p is the estimated proportion of voters planning to vote for Chavez
- E is the margin of error (0.03 in this case)
Since we don't know the true proportion of voters planning to vote for Chavez, we can use the most conservative
estimate (p = 0.5) to ensure the required margin of error:
[tex]n = (1.96^2 × 0.5 × (1-0.5)) / 0.03^2[/tex]
n = (3.8416 × 0.25) / 0.0009
n = 0.9604 / 0.0009
n ≈ 1067
Therefore, a random sample of approximately 1067 registered voters is needed to estimate the proportion of voters
planning to vote for Chavez with 95% confidence and a margin of error no greater than 0.03.
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x^2+y^2+12x+12y+12=0
Answer: the equation represents a circle centered at (-6, -6) with radius 2.
Step-by-step explanation:
x^2 + 12x + 36 + y^2 + 12y + 12 - 36 = 0
Simplifying, we get:
(x + 6)^2 + y^2 - 12 = 0
For the y terms, we add (12/2)^2 = 36 to both sides to get:
x^2 + 12x + 36 + y^2 + 12y + 36 - 24 = 0
Simplifying, we get:
(x + 6)^2 + (y + 6)^2 = 4
Therefore, the equation represents a circle centered at (-6, -6) with radius 2.
Answer: 0
Step-by-step explanation:
suppose a curve is given by the parametric equations where the range of is [-1, 9] and the range of is [-1, 9]. what can you say about the curve? you must select all correct choices to get full credit on this problem.
Nothing can be said about the curve, for the parametric equations where the range of is [-1, 9] and the range of is [-1, 9]. Option B is the correct answer.
The parametric equations define the curve in terms of the parameter t. The given ranges for t and u indicate the domain of the curve. Without additional information, it is difficult to say much about the curve.
Option A is incorrect because there is no reason to assume that the curve lies inside a circle with a center (-1, -1) and radius of 0.5.
Option C is incorrect because the range of u is greater than 3.
Option D is incorrect because the given range of t is not sufficient to define a line segment between (-1, 1) and (7, 3). Option E is incorrect because there is no reason to assume that the curve lies outside the rectangle [-1, 7] by [1, 3].
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The question is -
Suppose a curve is given by the parametric equations where the range of is [-1, 9] and the range of is [-1, 9]. what can you say about the curve? you must select all correct choices to get full credit on this problem.
A. The curve must lie inside a circle with a center (-1, -1) and radius of 0.5.
B. Nothing can be said about the curve.
C. The curve is completely contained in the rectangle [-1, 1] by [1, 3].
D. The curve is the line with endpoints (-1, 1) and (7, 3).
E. The curve must lie outside the rectangle [-1, 7] by [1, 3].
D. The curve is a circle with a center (-1, -1) and a radius of 3.
In Exercises 19-22, two triangles can be formed using the given meas- urements. Solve both triangles. 14. 19. A = 64°, a = 16,. 20. B 38°,. 21. C 68°,.
Two triangles can be formed using the given measurements,
19. Triangle 1: A = 64°, B ≈ 53.07°, C ≈ 62.93°, a = 16, b ≈ 14.83, c ≈ 16.64
Triangle 2: A = 64°, B ≈ 126.93°, C ≈ 9.07°, a = 16, b ≈ 80.17, c ≈ 8.98
20. Triangle 1: A ≈ 52°, B = 38°, C ≈ 94°, a ≈ 22.57, b = b, c ≈ 34.60
Triangle 2: A ≈ 128°, B = 38°, C ≈ 14°, a ≈ 22.57, b = b, c ≈ 16.66
19. We are given angle A and the side opposite to it, a. We can use the law of sines to find the other sides and angles of the triangle:
a/sin(A) = b/sin(B) = c/sin(C)
b/sin(B) = a/sin(A)
b = a × sin(B)/sin(A)
b = 16 × sin(64°)/sin(180°-64°-90°)
b ≈ 14.83
c/sin(C) = a/sin(A)
c = a × sin(C)/sin(A)
c = 16 × sin(68°)/sin(64°)
c ≈ 16.64
Therefore, the two triangles are:
Triangle 1: A = 64°, B ≈ 53.07°, C ≈ 62.93°, a = 16, b ≈ 14.83, c ≈ 16.64
Triangle 2: A = 64°, B ≈ 126.93°, C ≈ 9.07°, a = 16, b ≈ 80.17, c ≈ 8.98
20. We are given angle B. Let the length of the side opposite to B be b. We can use the fact that the angles in a triangle add up to 180° to find angle A, and then use the law of sines to find the remaining sides and angles:
A = 180° - 90° - 38°
A = 52°
a/sin(A) = b/sin(B) = c/sin(C)
a/sin(52°) = b/sin(38°)
c/sin(C) = b/sin(38°)
c = b*sin(C)/sin(38°)
The angles in a triangle add up to 180°, so we have:
C = 180° - A - B
C ≈ 94°
Substituting the values of A, B, and C in the above equations, we get:
a ≈ 22.57
b = b
c ≈ 34.60
Therefore, the two triangles are:
Triangle 1: A ≈ 52°, B = 38°, C ≈ 94°, a ≈ 22.57, b = b, c ≈ 34.60
Triangle 2: A ≈ 128°, B = 38°, C ≈ 14°, a ≈ 22.57, b = b, c ≈ 16.66
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The question is -
In Exercises 19-22, two triangles can be formed using the given measurements.
Solve both triangles.
19. A = 64°, a = 16,
20. B 38°
you roll a 6-sided dice. what is the probability that you rolled a 5, given that the number rolled was greater than 3?
The probability that you rolled a 5, given that the number rolled was greater than 3, is 1/3 or approximately 0.333.
We need to find the probability that you rolled a 5, given that the number rolled was greater than 3. Let's break this down step by step:
1. Identify the total number of outcomes: Since it is a 6-sided dice, there are 6 possible outcomes (1, 2, 3, 4, 5, and 6).
2. Determine the number of outcomes greater than 3: The outcomes greater than 3 are 4, 5, and 6. There are 3 possible outcomes that satisfy this condition.
3. Identify the number of outcomes that result in rolling a 5: There is only 1 outcome that results in rolling a 5.
4. Calculate the probability: To find the probability, divide the number of outcomes that result in rolling a 5 (1) by the total number of outcomes greater than 3 (3).
Probability = (Number of outcomes with a 5) / (Number of outcomes greater than 3) = 1/3
So, the probability that you rolled a 5, given that the number rolled was greater than 3, is 1/3 or approximately 0.333.
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The probability that the number rolled was a 5, given that it was greater than 3, is [tex]$\frac{1}{3}$[/tex].
The number rolled was greater than 3, it must be either a 4, 5, or 6.
The probability that the number rolled was a 5, given that it was greater than 3.
Let [tex]$A$[/tex] be the event that the number rolled is a 5 and let [tex]$B$[/tex] be the event that the number rolled is greater than 3.
Then, we want to find. [tex]$P(A|B)$[/tex], the probability of [tex]$A$[/tex] given [tex]$B$[/tex].
By Bayes' theorem, we have:
Bayes' theorem (alternatively Bayes' law or Bayes' rule), named after Thomas Bayes, describes the probability of an event, based on prior knowledge of conditions that might be related to the event.
The risk of developing health problems is known to increase with age, Bayes' theorem allows the risk to an individual of a known age to be assessed more accurately by conditioning it relative to their age, rather than simply assuming that the individual is typical of the population as a whole.
One of the many applications of Bayes' theorem is Bayesian inference, a particular approach to statistical inference.
The probabilities involved in the theorem may have different probability interpretations.
Bayesian probability interpretation, the theorem expresses how a degree of belief, expressed as a probability, should rationally change to account for the availability of related evidence.
Bayesian inference is fundamental to Bayesian statistics, being considered by one authority as; "to the theory of probability what Pythagoras's theorem is to geometry."
[tex]$P(A|B) = \frac{P(B|A)P(A)}{P(B)}$[/tex]
[tex]$P(A) = \frac{1}{6}$[/tex], since there is only one way to roll a 5 on a 6-sided die.
[tex]$P(B) = \frac{3}{6} = \frac{1}{2}$[/tex], since there are three outcomes (4, 5, or 6) that satisfy. [tex]$B$[/tex], out of a total of six possible outcomes.
[tex]$P(B|A)$[/tex], the probability of rolling a number greater than 3, given that the number rolled is a 5, note that. [tex]$B$[/tex] is true only if the number rolled is a 4, 5, or 6.
Since there is only one way to roll a 5, and only one of these three outcomes satisfies. [tex]$A$[/tex], we have:
[tex]$P(B|A) = \frac{1}{1} = 1$[/tex]
Substituting these values into Bayes' theorem, we get:
[tex]$P(A|B) = \frac{P(B|A)P(A)}{P(B)} = \frac{1 \cdot \frac{1}{6}}{\frac{1}{2}} = \frac{1}{3}$[/tex]
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In the accompanying diagram, m<A=32° and AC = 10. Which equation could be used to find x in ∆ABC?
1. x=10 sin [32°]
2. x=10 cos [32°]
3. x = 10 tan [32°]
4. x=10/cos32
The equation x = 10 tan (32°) could be used to find x in ∆ABC.
RIGHT TRIANGLEA triangle is classified as a right triangle when it presents one of your angles equal to 90º. The greatest side of a right triangle is called the hypotenuse. And, the other two sides are called legs.
The math tools applied for finding angles or sides in a right triangle are the trigonometric ratios or the Pythagorean Theorem.
The Pythagorean Theorem says: (hypotenuse)²= (leg1)²+(leg2)² . And the main trigonometric ratios are: sin (x) , cos (x) and tan (x) , where:
[tex]sin(x)=\frac{opposite\ side}{hypotenuse} \\ \\ cos(x)=\frac{adjacent\ side}{hypotenuse}\\ \\ tan(x)=\frac{sin(x)}{cos(x)} =\frac{opposite\ side}{adjacent\ side}[/tex]
The question gives the value of the two sides and the value of an angle. From the trigonometric ratios presented before, you can write:
[tex]tan(32)=\frac{opposite\ side}{adjacent\ side}=\frac{x}{10} \\ \\ x=10\ tan (32\°)[/tex]
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The right triangle shown is enlarged such that each side is multiplied by the value of the hypotenuse, 3y. Find the expression that represents the perimeter of the enlarged triangle. TRIANGLE AND ANSWER CHOICES BELOW!
Answer:
c.
Step-by-step explanation:
The original triangle has two sides with length 4x each, and the hypotenuse has length 3y.
After the enlargement, each of the sides with length 4x becomes 3y × 4x = 12xy, and the hypotenuse becomes 3y × 3y = 9y^2.
Therefore, the perimeter of the enlarged triangle is the sum of the lengths of its three sides:
12xy + 12xy + 9y^2 = 24xy + 9y^2 = 9y^2 + 24xy
So the answer is (C) 9y^2 + 24xy.
Interpret the probability. In 100 trials of this experiment, it is expected about (Round to the nearest whole number as needed.) to result in exactly 15 flights being on time
Hence, it is expected that 14 flights will arrive on time out of the 100 trials of this experiment.
What is the probability?The probability of an occurrence is a number used in mathematics to describe how likely it is that the event will take place. In terms of percentage notation, between 0% and 100% it is expressed as a number between 0 and 1, or . The higher the likelihood, the more likely it is that the event will take place.
What is the trials?when we refer to an experiment or trial, we mean a random experiment. When difference between a trial and an experiment, think of the experiment as a larger entity created by the fusion of several trials.
Unless otherwise stated,A trial is any specific outcome of a random experiment. In other words, a trial of the experiment is what we call when we conduct an experiment.
according to question, the number of on-time flights in 100 trials as a binomial random variable with parameters n = 100 (the number of trials) and p (the chance of success, i.e., a flight being on time), presuming that the probability of a flight being on time is the same in all trials.
The expected number of on-time flights in 100 trials is E(X) = np if the same of a flight being on time is p. Given that E(X) = 15, we determine p ,
E(X) = n p = 15 n = 100
p = [tex]\frac{E(X)}{n} = \frac{15}{100}[/tex] = 0.15
Therefore, it is probability that 0.15 %of flights will arrive on time.
To determine the expected number of trials from a total of 100
Using the probability mass function of the binomial distribution, we can get the expected probability of trials out of 100 that result in precisely 15 flights departing on time:
[tex]P(X = 15)=(100 choose 15) * 0.15^{15} * 0.85^{85}[/tex]
We can calculate this 0.144 get using a calculator.
therefore it is expected that 14 flights will arrive on time out of the 100 trials of this experiment. It should be noted that while this is an expected value, random fluctuation may cause the actual number of on-time flights in each trial to deviate somewhat from this figure.
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Verify that the segments are parallel.
10. CD || AB
Answer: Prove that the triangles are similar, and therefore the lines have the same slope and are parallel.
What is the answer to the question?
Answer:
y = xy = -xx = 3x = 7x = -3Step-by-step explanation:
You want to identify the lines among those listed that will intersect the line y = 4.
Parallel linesThe line y = 4 is a horizontal line. Any line of the form y = c, for some constant c (not 4), will be parallel and will not intersect y = 4.
All of the other lines listed will intersect y = 4.
The intersecting lines are ...
y = xy = -xx = 3x = 7x = -3<95141404393>
Kiran swims z laps in the pool. Clare swims 18 laps, which is 9/5
times as many laps as Kiran. How many laps did Kiran swim?
Equation:
Solution: z=
we use linear equation in one variable to solve the problem. Kiran swam 10 laps in the pool.
Let's represent the number of laps Kiran swam as "z".
We know that Clare swam 18 laps, which is 9/5 times as many laps as Kiran. We can represent this relationship with the following equation:
18 = (9/5)z
To solve for z, we can isolate it by multiplying both sides of the equation by the reciprocal of 9/5, which is 5/9:
18 * (5/9) = (9/5)z * (5/9)
10 = z
Therefore, Kiran swam 10 laps in the pool.
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Joe, John, and Linda are going to split the leftover pizza evenly. If they have 2 1/2 pizzas leftover, how much pizza would each get?
1 1/4
Step-by-step explanation:
Choose Yes or No to tell whether the Addition Property of Inequality can be used to solve each statement. W – 4 > –10 12 ≥ 20x 7y10 ≤ 5. 5 –3. 25 < x – 9. 75
According to the given inequality,
W – 4 > –10 uses Addition Property
12 ≥ 20x not uses Addition Property
7y10 ≤ 5. 5 –3. 25 < x – 9. 75 uses Addition Property
Let's analyze each given inequality to see whether we can use the Addition Property of Inequality to solve them.
W – 4 > –10: We can use the Addition Property of Inequality to solve this inequality. To do this, we need to add 4 to both sides of the inequality, which gives us: W – 4 + 4 > –10 + 4, or W > –6.
12 ≥ 20x: We cannot use the Addition Property of Inequality to solve this inequality since we need to isolate "x" on one side of the inequality. To do this, we would need to subtract 12 from both sides of the inequality, which is not allowed under the Addition Property of Inequality.
7y + 10 ≤ 5.5 – 3.25x: We cannot use the Addition Property of Inequality to solve this inequality either since we need to isolate "y" on one side of the inequality.
To do this, we would need to subtract 10 from both sides of the inequality, which is not allowed under the Addition Property of Inequality.
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Write the equation for the following graph.
Step-by-step explanation:
the equation for the following graph os (-3,-5) & (1,1)
Find the three trigonometric ratios . If needed, reduce fractions.
The three trigonometric ratios are - sin A = 12/37, sin A = 12/37 and tan A = 12/35.
Explain about the trigonometric ratios:There really are six trigonometric ratios used in trigonometry: sine, cosine, tangent, secant, and cotangent. The abbreviations for these ratios are sin, cos, tan, sec, cosec(or csc), and cot. Look at the below-displayed right-angled triangle. Any two of the three sides of such a right-angled triangle can be compared in terms of their relative angles using trigonometric ratios.
sine (angle) = opposite leg / hypotenuse.sin A = CB/AC
sin A = 12/37
cosine (angle) = adjacent leg / hypotenusecos A = AB/AC
cos A = 35/37
tangent (angle) = sine (angle)/ cosine (angle)tangent (angle) = opposite leg / adjacent leg.
tan A = CB/AB
tan A = 12/35
Thus, the three trigonometric ratios are - sin A = 12/37, sin A = 12/37 and tan A = 12/35.
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the ratio of the amount of ink used in a table or chart that is necessary to convey information to the total amount of ink used in the table and chart is known as data-ink ratio. using additional ink that is not necessary to convey information has what effect on the data-ink ratio?
Using additional ink that is not necessary to convey information reduces the data-ink ratio, which should be maximized in order to effectively convey essential information in a table or chart.
Using additional ink that is not necessary to convey information reduces the data-ink ratio. The goal of maximizing the data-ink ratio is to ensure that the ink used in the visual representation of data is used only to convey the necessary information, without cluttering or distracting from the main message.
When unnecessary ink is used, it increases the amount of ink used overall, reducing the proportion of ink used for conveying information, and thus reducing the data-ink ratio. Therefore, to maximize the effectiveness of a table or chart, it's important to minimize the use of non-data ink and focus on the essential information.
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a quadrilateral that is not a rectangle is inscribed in a circle. what is the least number of arc measures needed to determine the measures of each antgle in the quadrialteral
The least number of arc measures needed to determine the measures of each angle in the inscribed quadrilateral is 2.
To determine the measures of each angle in the quadrilateral, we need to find the central angles of the arcs that intersect the quadrilateral's vertices. Since the quadrilateral is not a rectangle, it is not a cyclic quadrilateral, which means that its opposite angles do not add up to 180 degrees.
Therefore, we need to use the fact that the sum of the measures of the opposite angles in an inscribed quadrilateral is 360 degrees. Let the angles of the quadrilateral be A, B, C, and D, with opposite angles A and C, and B and D. We can find the measure of arc AC by drawing a chord connecting the endpoints of AC and finding the central angle that intercepts it. Similarly, we can find the measure of arc BD.
Now, we can use the fact that the sum of the central angles that intercept arcs AC and BD is equal to 360 degrees. Let these angles be x and y, respectively. Then, we have:
x + y = 360
We can solve for one of the variables, say y, in terms of the other:
y = 360 - x
Substituting this into the equation for arc BD, we have:
2x + 2(360 - x) = arc BD
Simplifying this equation, we get:
arc BD = 720 - 2x
Now, we can use the fact that the sum of the measures of angles A and C is equal to the measure of arc AC, and the sum of the measures of angles B and D is equal to the measure of arc BD. Therefore, we have:
A + C = arc AC
B + D = arc BD = 720 - 2x
We need to find the least number of arc measures needed to determine the measures of A, B, C, and D. Since we have two equations and two variables (x and A), we can solve for both variables. Then, we can use the equations for B and D to find their measures.
Solving for A in terms of x, we have:
A = arc AC - C
A = 360 - x - C
Substituting this into the equation for B + D, we have:
(360 - x - C) + B + D = 720 - 2x
Simplifying this equation, we get:
B + D = 360 + x - C
Now, we have three equations and three variables (x, A, and C). We can solve for each variable in terms of x, and then use the equation for B + D to find their measures.
Therefore, the least number of arc measures needed to determine the measures of each angle in the quadrilateral is two: arc AC and arc BD.
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A bottle of water that is 80°F is placed in a cooler full of ice. The temperature of the water decreases by 0. 5°F every minute. What is the temperature of the water, in degrees Fahrenheit, after 5 1/2
minutes? Express your answer as a decimal
After 5 and a half minutes, the temperature of the water will be 77°F.
In this scenario, we are given that the initial temperature of the water is 80°F. We also know that the temperature of the water decreases by 0.5°F every minute. We want to find out what the temperature of the water will be after 5 and a half minutes.
To solve this problem, we need to use a bit of math. We know that the temperature of the water is decreasing by 0.5°F every minute. So after 1 minute, the temperature of the water will be 80°F - 0.5°F = 79.5°F. After 2 minutes, the temperature will be 79.5°F - 0.5°F = 79°F. We can continue this pattern to find the temperature after 5 and a half minutes.
After 5 minutes, the temperature of the water will be 80°F - (0.5°F x 5) = 77.5°F. And after another half minute (or 0.5 minutes), the temperature will decrease by another 0.5°F, so the temperature will be 77.5°F - 0.5°F = 77°F.
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Can someone help me pls!!!
Answer: Yes
Step-by-step explanation: SSS criteria
A concert ticket costs $65. If 25,300 tickets are available, how much money will be made in concert tickets if every
ticket is sold. Create an equation to represent this situation. Write the equation in function notation. State the
ordered pair for 25,300 tickets and explain your solution.
Answer:
$ 1644500
Step-by-step explanation:
You roll a six sided die 30 times. A 5 is rolled 8 times. What is the theoretical probability of rolling a 5? What is the experimental probability of rolling a 5?
The theoretical and experimental probability of rolling a 5 are 1/6 and 4/15 respectively.
How do we derive the probability?We will calculate the theoretical probability by substituting 30 for the number of favorable outcomes as the die is rolled 30 times with one option each for 30 rolls and 180 for total number of outcomes in theoretical probability formula.
P(Theoretical probability of rolling a 5) = 30/180
P(Theoretical probability of rolling a 5) = 1/6.
The experimental probability is calculated by substituting 8 for the number of time the event occurs and 30 for the total number of trials.
P(Experimental probability of rolling a 5)= 8/30
P(Experimental probability of rolling a 5) =4/15
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select the location -2 and -9 on the number line. select the places on the number line to plot the points.
-2: | -2 |
-9: | -9 |
Slope-intercept (0, -2) , (9,1)