Answer: q1. 12 i think q2. 39 i think
Step-by-step explanation
Can someone help me with this problem, and explain how to solve it?
Thus, the height of flagpole from the ground is found as 23.34 feet.
Explain about the angle of elevation:The measurement of the angle between a person's eyes' line of sight to anything above and the horizontal line is known as the angle of elevation.
The movement of the observer's eyes determines the elevation angle. The angle of elevation is the angle formed by the line of sight and the horizontal line when a viewer is looking up at an object.
Given data:
height of boy = 5 ftDistance of boy from flagpole = 30 ft angle of elevation = 35 degreesLet the height of pole above the boy be 'h'feet.Using the trigonometric ratios in the right triangle ABE.
tan 35 = h / 30
h = 30* tan(35)
h = 18.34
Height of flagpole = 18.34 + 5 = 23.34 feet
Thus, the height of the flagpole from the ground is found as 23.34 feet.
Know more about the angle of elevation:
https://brainly.com/question/26356439
#SPJ1
Please help will mark Brainliest
Step-by-step explanation:
5 cos (307) = 3
5 sin (307) = -4
just plot the point ( 3, -4 ) Done.
Answer:
The point is (3, -4) because 5 cos [307] = 3 and 5 sin [307] = -4
If 1 US dollar in 1860 had the same purchasing power as $28.95 in 2018, what is the yearly average inflation rate during that time?
A. 2.15%
B. 2.75%
C. 3.15%
D. 3.75%
Step-by-step explanation:
From 1860 to 2018 is 158 years
Use compounding formula
$ 28.95 = $ 1 ( 1 +i) ^158 where i is decimal inflation rate %
[tex]\sqrt[158]{28.95}[/tex] = 1 + i
i = .0215 = 2.15 %
A bag contains some tiles. Each tile has the number 1, 10, 100, or 1000 written on it The table shows the frequency of each number in the bag. A tile is chosen at random. Find each probability.
P(1000)
Fraction:
Percent: %
Likelihood: Impossible, unlikely, equally likely, likely, certain
P(not even)
Fraction:
Percent: %
Likelihood: impossible, unlikely, equally likely, likely, certain
Fraction: 0/4
Percent: 0%
Likelihood: Impossible
Answer:
1.fraction 1/4
percentage 25%
unlikely
2.same as number one
All the students in a class are more than 10 years old. What inequality represents the ages of the students?
Since all the students in the class are more than 10 years old, we can write the inequality: greater than
x > 10
what is greater than ?
The symbol ">" is commonly used in mathematics to represent "greater than." It is used to indicate that one quantity or value is larger than another. For example, if we say that 5 > 3, we mean that 5 is greater than 3. Similarly, if we say that x > y, we mean that x is greater than y.
In the given question,
The symbol ">" is commonly used in mathematics to represent "greater than." It is used to indicate that one quantity or value is larger than another.
Let "x" be the age of a student in the class.
Since all the students in the class are more than 10 years old, we can write the inequality:
x > 10
This inequality means that the age "x" of any student in the class must be greater than 10 years.
To know more about inequality , visit:
https://brainly.com/question/30231190
#SPJ1
Triangle PQR is rotated 180 degrees clockwise about the origin to produce the image Triangle P’Q’R’. Which of the following statements is TRUE abóyate Triangle P’Q’R’.
Answer:
Step-by-step explanation:
We get triangle PQR by plotting the point P (1, 4), Q (3, 1), R (2, -1) on the graph paper when rotated through 180° about the origin. The new position of the point is: P (1, 4) → P' (-1, -4) Q (3, 1) → Q' (-3, -1) R (2, -1) → R' (-2, 1) Thus, the new position of ∆PQR is ∆P’Q’R’.
Pls help with this question
The plane degrees off course is 6.79 degrees off at a speed of 541. 92 km / hr relative to the ground.
How to find the degrees off course ?To find the airplane's course deviation and its ground speed, we need to first determine the velocity vectors of the airplane and the wind.
W x = W x cos(225) = 90 x cos(225) = -63.64 km/hr
Wy = W x sin(225) = 90 x sin(225) = -63.64 km/hr
Magnitude: |R| = sqrt(Rx^2 + Ry^2) = √(536.36^2 + (-63.64)^2) = 541.92 km/hr
Direction: θ = arctan(Ry / Rx) ≈ arctan (-63.64 / 536.36) = -6.79 degrees
So, the airplane is 6.79 degrees off course, and its ground speed is 541.92 km/hr.
Find out more on airplanes at https://brainly.com/question/10922845
#SPJ1
how can you tell if a quotient is less than 1'.
Answer:
Step-by-step explanation:
Okay so when a smaller number is divided by a larger number, the quotient is less than 1. Hope this helps Bye sisters slay.
A random sample of 20 students obtained scores with a mean of 72 and a variance
of 16 on a quiz in statistics. Using a normality assumption, first construct a random
interval for (not 2) with 0.92 confidence level, and then use the result with the
given data information to get a 92% C.I. for
The answer of the given question based on the variance is , 92% confidence that the true population mean lies between 69.11 and 74.89.
What is Mean?In statistics, the mean is a measure of central tendency that represents the average of a set of numerical data. It is also known as the arithmetic mean or simply the average. The mean is calculated by adding up all the values in the dataset and then dividing the sum by the number of values.
To construct a random interval with a 0.92 confidence level, we need to find the corresponding z-score for the level of confidence. Since the interval is not two-sided, we will use a one-tailed z-score.
Using a standard normal distribution table or calculator, we find that the z-score corresponding to a 0.92 confidence level is approximately 1.41.
To find the 92% confidence interval for the population mean, we can use the following formula:
CI = ₓ⁻ ± zα/2 * σ/√n
where ₓ⁻ is the sample mean, σ is the population standard deviation (unknown in this case), n is the sample size, and zα/2 is critical value of standard normal distribution corresponding to desired level of confidence.
Substituting the given values, we get:
CI = 72 ± 1.41 * (4 / √20)
CI = (69.11, 74.89)
Therefore, we can say with 92% confidence that the true population mean lies between 69.11 and 74.89.
To know more about standard deviation visit:
https://brainly.com/question/28528375
#SPJ1
1. All numbered streets runs parallel to each other. Both 3rd and 4th Streets are intersected by King Ave. as shown:
(a) Suppose a car is traveling east on 4th Street and turns onto King Avenue heading northeast. What is the measure of the angle created by the car's turning? Explain your answer.
(b) Suppose a car is traveling southwest on King Avenue and turns left onto 3rd Street. What is the measure of the angle created by the car's turning? Explain your answer.
(c) Suppose a car is traveling northeast on King Avenue and turns right onto 3rd Street. What is the measure of the angle created by the car's turning? Explain your answer.
When the car travels east on 4th Street and turns onto King Avenue heading northeast, the angle created by the car's turning is a 45-degree angle.
When the car travels southwest on King Avenue and turns left onto 3rd Street, the angle created by the car's turning is a 135-degree angle.
When the car travels northeast on King Avenue and turns right onto 3rd Street, the angle created by the car's turning is a 45-degree angle.
How to get the Angle?(a) When the car travels east on 4th Street and turns onto King Avenue heading northeast, the angle created by the car's turning is a 45-degree angle. This is because the intersection of 4th Street and King Avenue creates a right angle, and the car turns northeast, creating another 45-degree angle with the horizontal 4th Street.
(b) When the car travels southwest on King Avenue and turns left onto 3rd Street, the angle created by the car's turning is a 135-degree angle. This is because the intersection of King Avenue and 3rd Street creates a right angle, and the car turns left, creating an additional 90-degree angle. Therefore, the total angle is 90 degrees + 45 degrees = 135 degrees.
(c) When the car travels northeast on King Avenue and turns right onto 3rd Street, the angle created by the car's turning is a 45-degree angle. This is because the intersection of King Avenue and 3rd Street creates a right angle, and the car turns right, creating another 45-degree angle with the horizontal 3rd Street.
Learn more about right angle here: https://brainly.com/question/29869536
#SPJ1
A boat traveled 350 miles each way downstream and back. The trip downstream took 14 hours.
The trip back took 70 hours. What is the speed of the boat in still water? What is the speed of
the current?
Answer:
The speed of the boat in still water is 15 mi/hr while the speed of the current is 10 mi/hr.
Step-by-step explanation:
Given: d = 350 miles
[tex]t_{ds}[/tex] = 14 hours
[tex]t_{us}[/tex] = 70 hours
Asked: Speed of the boat [tex]V_b[/tex] in still water and speed of the current [tex]V_c[/tex]
Solve:
Note that when the boat is going downstream, the current is helping the boat to speed up and when the boat is going upstream, the current is slowing it down.
Get the speed downstream
[tex]V_{ds} = V_b + V_c[/tex]
350mi/14hrs = [tex]V_b + V_c[/tex]
25 mi/hr = [tex]V_b + V_c[/tex]
Transpose to get the value of Vb
25 mi/hr - Vc = Vb ---equation 1
Get the speed upstream
[tex]V_{us} = V_b - V_c[/tex]
350mi/70hrs = Vb - Vc
5 mi/hr = Vb - Vc
Transpose to get the value of Vb
5 mi/hr + Vc = Vb ----equation 2
Equate equations 1 and 2
25 mi/hr - Vc = 5 mi/hr + Vc
Transpose
25 mi/hr - 5 mi/hr = Vc + Vc
20 mi/hr = 2 Vc
Divide both sides of the equation by 2
10 mi/hr = Vc
Vc = 10 mi/hr
From 25 mi/hr = [tex]V_b + V_c[/tex] we then solve the speed of the boat
25 mi/hr = Vb + 10 mi/hr
25 mi/hr - 10 mi/hr = Vb
15 mi/hr = Vb
Vb = 15 mi/hr
100 Points! Algebra question. Write a quadratic equation in standard form with -1/2, 3/4 as its roots. Photo attached. Thank you!
Answer:
Step-by-step explanation:
Given:-
•α=
•β=
To Find:-
♦The Quadratic Equation using the Given details?
AnsWer:-
↓Quadratic Formula↓
→k[x²-(α+β)x+αβ]
→α+β=+
•Take LCM•
→α+β=+
→α+β=
→αβ=×
→αβ=
↑Using these Values in The Formula↑
→k[x²-(x)+() ]
★Let k=8★
→8[x²-(x)+() ]
→8x²-(-2x)+(-3)
→8x²+2x-3=quadratic Equation
F(x)=2/3x-1 show creat points to graph
Label values on thex&y axis
To create points for the graph of f(x) = (2/3)x - 1, we can choose values of x and calculate the corresponding values of f(x). See explanation below and attached graph.
What is the explanation for the above response?To create points for the graph of f(x) = (2/3)x - 1, we can choose values of x and calculate the corresponding values of f(x). For example:
When x = -3, f(x) = (2/3)(-3) - 1 = -3 - 1 = -4When x = -2, f(x) = (2/3)(-2) - 1 = -2 1/3When x = -1, f(x) = (2/3)(-1) - 1 = -1 2/3When x = 0, f(x) = (2/3)(0) - 1 = -1When x = 1, f(x) = (2/3)(1) - 1 = -1/3When x = 2, f(x) = (2/3)(2) - 1 = 1/3When x = 3, f(x) = (2/3)(3) - 1 = 1So, we have the following points for the graph: (-3, -4), (-2, -2 1/3), (-1, -1 2/3), (0, -1), (1, -1/3), (2, 1/3), (3, 1).
We can now plot these points on a graph, with x-values on the horizontal axis and f(x) values on the vertical axis. We can label the horizontal axis as "x" and the vertical axis as "f(x)" or "y".
Note that the graph of f(x) = (2/3)x - 1 is a straight line with slope 2/3 and y-intercept -1.
Learn more about graph at:
https://brainly.com/question/17267403
#SPJ1
Find the area of a shaded region
Answer:
40 cm²
Step-by-step explanation:
you have to multiply the top of the triangle by the base(40) which is 80 then you divide by two since it's a triangle then you get 40 again since your finding the area you have to put the 2 above the cm
Landon and Maria are meeting at the library to work on their history project. Maria walks 9 blocks east and 3 blocks north to get to the library from her house. Landon walks 5 blocks south and 7 blocks west to get to the library from his house. The map below shows the location of the library and Landon's and Maria's houses. To the nearest block, how far is Landon's house from Maria's house if Maria could walk in a straight line?
To the nearest block, Landon's house is at distance of 12 blocks away from Maria's house if Maria could walk in a straight line.
What is Pythagoras theorem?A basic mathematical theorem relating to the sides of a right-angled triangle is known as Pythagoras' theorem. The square of the length of the hypotenuse, the side that faces the right angle, is said to be equal to the sum of the squares of the lengths of the other two sides, known as the legs, in a right triangle.
This can be written in mathematical notation as:
c² = a² + b²
where c is the length of the hypotenuse, and a and b are the lengths of the legs of the right triangle.
In this case, we can consider the straight line between Maria's house and Landon's house as the hypotenuse of a right triangle, with the distances they walked as the other two sides. We can use the distance formula to find the lengths of those sides:
Distance walked by Maria = √(9² + 3²) = √90 ≈ 9.49 blocks
Distance walked by Landon = √(5² + 7²) = √74 ≈ 8.60 blocks
Now we can use the Pythagorean theorem to find the distance between their houses:
Distance between houses = √(9.49² + 8.60²) ≈ 12.46 blocks
To know more about Pythagoras' theorem, visit:
https://brainly.com/question/21926466
#SPJ1
Convert the following General Form Equations into Standard Form and then find the center and radius
Answer:
good luck
Step-by-step explanation:
Brenda is fishing from a small boat. Her fishing hook is 12 feet below her, and a fish is swimming at the same depth as the hook, 16 feet away. How far away is Brenda from the fish?
Answer:
We can use the Pythagorean theorem to solve this problem. Let's call the distance Brenda is away from the fish "x". Then, we have a right triangle with legs of length 12 and x, and a hypotenuse of length 16. So:
x^2 + 12^2 = 16^2
Simplifying:
x^2 + 144 = 256
x^2 = 112
Taking the square root of both sides:
x ≈ 10.6 feet
Therefore, Brenda is approximately 10.6 feet away from the fish.
which of these is another way to write the function g(x)= 3x
Answer:
y=9 (3x/9-2) + 18=3x
Step-by-step explanation:
If you are performing a left-tailed z-statistic test with a sample size n = 85 and a 0.01 significance level, what is the critical value?
If your calculated value of the z-statistic is z = −1.95, what is your conclusion about the null hypothesis (reject the null hypothesis or fail to reject the null hypothesis)?
This null hypothesis prompt is actually straight forward. Note that where the above conditions exist, we must NOT reject the null hypothesis due to the values of the z-statistics and the significance level.
What is a nyll hypothesis?The idea that there is no influence on the population is known as the null hypothesis. We can reject the null hypothesis if the sample contains sufficient data to refute the assertion that there is no impact in the population (p≤α ).
So to determine whether or not to accept or reject the null hypothesis, we must determine dthe z-score.
To find the the critial value for a left-tailoed test, where the signifiance level is 0.01, note that we must find the z-score that leaves 1% of the area in the left tail.
Using the standard distribution table, the z-score for 0.01 left tail is about -2.33.
Since
z-satistics which is equal to -1.95 (as given) is greater than the z-score, we must NOT reject the null hypothesis.
Learn more about null hypothesis:
https://brainly.com/question/28920252
#SPJ1
what is 4361 divided by 7
2298/24 what is the quotient step by step
2298 divided by 24 using long division shows what is the quotient and remainder while 2298 divided by 24 and the complete steps for how to find it.
Question:
2298/24 = (?)
what is 2298 divided by 24?
Answer:the quotient is 95 and the remainder is 18 when 2298 is divided by 24.
Hello, I am confused on how to answer this question.
Answer: x=14
Step-by-step explanation:
cb=10.
ac=14
The value of X will be 14.
This is a simple mathematics problem that can be solved by using ratios.
Given, AC : BC : AB = 7 : 5 : 8
AC = X ; BC = 10 ; AB = X + 2
AC/ BC = X/ 10 = 7/5 (Ratios can also be represented as fractions)
X/10 = 7/5
On Transposing,
5X = 70
X = 70/5
X = 14
Alternatively,
BC/AB = 5/8 = 10/ (X + 2)
5/8 = 10/ (X + 2)
On Transposing,
80 = 5X + 10
5X = 70
X = 14
To know more about Ratios,
https://brainly.com/question/29442975
^4√p7
in exponential form.
Answer:1111
Step-by-step explanation:
A wall is 2000 sq ft. A gallon of paint covers 400 sq ft. Complete the conversion factor: 1 gallon / ? sq ft
To cover a 2000 sq ft wall, we will need 5 gallons of paint.
what is area?
Area is the measure of the size of a two-dimensional surface or region, expressed in square units. It is a fundamental concept in geometry and is used to quantify the amount of space inside a shape, such as a square, rectangle, triangle, or circle. The unit of measurement for area varies depending on the system used, but in the International System of Units (SI), the standard unit of area is the square meter (m²). In everyday life, we often use other units of area such as square feet, square inches, or square centimeters.
To find the conversion factor, we need to divide the number of square feet by the number of square feet covered by one gallon of paint:
Conversion factor = 1 gallon / (400 sq ft/gallon)
So, for a wall that is 2000 sq ft, we can use this conversion factor to find the number of gallons of paint needed:
Number of gallons = (2000 sq ft) / (400 sq ft/gallon) = 5 gallons
Therefore, to cover a 2000 sq ft wall, we will need 5 gallons of paint.
To learn more about conversion factors from the given link
https://brainly.com/question/30166433
#SPJ1
If 4 apples have a mass of 1 kg about how many grams is each apple
PLEASE I NEED HELP
1 kg = 1000 G
so 1000/4g = 250g
I hope it’s helpful
i have 60 square feet of paper to wrap a box in the shape of a right rectangular prism the height of the box is 1 2/3 feet the width is 4 feet and the length is 5 1/2 feet what percent of the box will remain unwrapped if i use all the paper i has available
The percent of the box that will remain unwrapped by the 60 square feet of paper is about 20.70%
What is a percentage?A percentage is a proportion of a number expressed as fraction of a 100
The dimensions in mixed fractions can be expressed as follows;
Height of the box = 1 2/3 feet = 5/3 feet
Width of the box = 4 feet
Length of the box = 5 1/2 feet = 11/2 feet
Surface area of the box, A = 2 × (5/3) × 4 + 2 × 4 × 11/2 + 2 × (5/3) × 11/2 = 227/3 = 75 2/3 square inches
The percent of the box that will remain unwrapped is therefore;
Percentage = 60/(227/3) × 100 ≈ 79.3%
The percentage of the box that will remain unwrapped is about (100 - 79.3)% = 20.70%
Learn more on the percentages here: https://brainly.com/question/11642822
#SPJ1
Bill Spends time each evening watching television. This amount of time, in minutes, can be represented by the variable t. Write and algebraic expression to represent the time Bill's friend Jill spends watching television if she watched 30 in more an evening that Bill.
Required algebraic expression is (t+30).
What is algebraic expression?
An algebraic expression is a mathematical phrase that contains variables, constants, and mathematical operations such as addition, subtraction, multiplication, division, and exponentiation. It may also contain brackets or parentheses to indicate the order of operations.
Algebraic expressions can be written using letters or symbols to represent variables, and they are used to represent mathematical relationships or formulas. For example, the expression "3x + 4" represents the sum of three times a variable x and the constant 4.
Let's represent the amount of time that Jill spends watching television as the variable j. We know that she watches 30 minutes more than Bill, so we can write:
j = t + 30
This algebraic expression says that Jill's time j is equal to Bill's time t, plus 30 additional minutes.
Learn more about algebraic expression here,
https://brainly.com/question/4344214
#SPJ9
Which expression is an expanded form of ln10m‾‾√?
The expression 10m‾‾√ is an expanded form of the mathematical term ln10.
4x+3y=-23and-x+y=-8 algebra elimination
I hope this helps you.
you can check your ans. by sub. in the value of x and y into both the equation which must give you the same answer.
A cone with a radius of 4 inches and a slant height of 10 inches is shown.
What is the surface area of the cone, in square inches?
62.8
125.7
150.8
O 175.9
4 in.
10 in.
Answer:
167.6190 approximately 167.62 inches
Step-by-step explanation:
formula for surface area of a cone is 1/3πr×r×slant height. How this helps.