Answer: The number of first-year residents she must survey to be 95% confident= 263
Step-by-step explanation:
When population standard deviation ([tex]\sigma[/tex]) is known and margin of error(E) is given, then the minimum sample size (n) is given by :-
[tex]n=(\dfrac{z^*\sigma}{E})^2[/tex], z* = Two-tailed critical value for the given confidence interval.
For 95% confidence level , z* = 1.96
As, [tex]\sigma[/tex] = 8.265, E = 1
So, [tex]n= (\dfrac{1.96\times8.265}{1})^2 =(16.1994)^2\\\\= 262.42056036\approx263\ \ \ [\text{Rounded to the next integer}][/tex]
Hence, the number of first-year residents she must survey to be 95% confident= 263
find the y-intercept and slope of the function’s graph, and find the equation for the function using the table in the picture.
y- intercept:
slope:
equation:
m = (y2-y1)/(x2-x1)
m = (9-5)/(3-2)
m = 4
Substitute the values in y= mx + c,
5 = (4)(2) + c
5 = 8 + c
c = -3
Thus, the equation is y= 4x -3
The y intercept is -3 and the slope of line is 4 .
Then the equation of line will be : y= 4x -3
Given,
Points on x and y axis .
Standard equation of line :
y = mx + c
m = slope of line
c = y intercept
Now
Firstly find out the slope of line ,
m = (y2-y1)/(x2-x1)\
m = (9-5)/(3-2)
m = 4
Now to calculate the value of y intercept
Substitute the values in y= mx + c,
5 = (4)(2) + c
5 = 8 + c
c = -3
Thus, the equation is m = (y2-y1)/(x2-x1)
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use the graph shown to complete the following sentence. when x = -3, then y = ___.
Answer:
y = -6
Step-by-step explanation:
We are trying to find the y-value when x = -3.
We see from our graph and linear equation that when x = -3, y = -6.
Therefore, our answer is -6.
Solve the following rational equation for x+2/3 2x-4/2
Answer:
2.667
Step-by-step explanation:
I have learned how to do this. I hope it is right! (;
what is a minimum number of points required to mark all maximum, minimum and zeros in a period of a sinusoid?
Answer:5 points :)
Step-by-step explanation:= −1) and 3 zeros (sin(0) = 0,sin( ) = 0, sin(2 ) = 0). Answer: 5 points. Hope this helps!
Factorise x²+4x-525
Factorise it plz
Answer:
(x+25)(x-21)
Step-by-step explanation:
x²+4x-525
=x²-21x+25x-525
=x(x-21)+25(x-21)
=(x+25)(x-21)
Answer:
(x+25)(x-21)
Step-by-step explanation:
x²+4x-525
multiply to get -525
add to get 4
x²+4x-525
(x²+21x)(+25x-525)
factorise:
x²+21x
x(x-21)
25x-525
25(x-21)
(x+25)(x-21)
Combine 250 mL, 500 mL, 750 mL and 3 L. How many liters is this
Answer:
4.5
Step-by-step explanation:
250 mL= 0.25 L 500 mL= 0.5 L 750mL= 0.75 L+3L
Put the following equation of a line into slope-intercept form, simplifying all
fractions.
2x - 2y = -10
Answer:
y=x+5
Step-by-step explanation:
Hope this helps! ; D
You have at most $24 to spend at a store. Shirts cost $9.50 each, and pants cost $16 each. Let s be numbers of shirts and p be numbers of pants. Write an inequality that represents the numbers of shirts and pants you can afford.
Answer:
[tex]9.5s \: + \: 16p \: = 24.[/tex]
Step-by-step explanation:
[tex]if \: the \: numbers \: of \: shirts \: is \: s.\\ if \: the \: numbers \: of pants \: is \: p. \\then \: the \: inequality \: that \: represents \: \\ the \: numbers \: of \: shirts \: and \: pants \: you \: can \: afford \: is : \\ 9.5s \: + \: 16p \: = 24.[/tex]
Answer:
9.5s + 16p = 24
Step-by-step explanation:
k12
Use the conditional statement "If it is January, then there is snow." for questions 17 - 18.
17. Identify the hypothesis:
18. Identify the conclusion:
Answer:
Hypothesis: It is January
Conclusion: There is snow
Step-by-step explanation:
COnditionals are in the form If p, then q.
P is the hypothesis.
Q is the conditional.
If (It is January), then (there is snow).
If and then are not included in the hypothesis and conclusion, respectively.
Hypothesis: It is January
Conclusion: There is snow
What is Hypothesis and Conclusion ?
The hypothesis is the first, or “if,” part of a conditional statement. The conclusion is the second, or “then,” part of a conditional statement. The conclusion is the result of a hypothesis. Hypotheses followed by a conclusion is called an If-then statement or a conditional statement. This is noted as. p→q. This is read - if p then q. A conditional statement is false if hypothesis is true and the conclusion is false.
Conditionals are in the form if P, then Q.
P is the hypothesis.
Q is the conclusion.
If It is January, then there is snow.
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Order an acute angle, obtuse angle, a straight angle, and a right angle in order from least to greatest measure
Acute
Right
Obtuse
Straight
will give brainliest!
In the figure, sin
a) cos N and sin R
b) sin R and sin N
c) cos N and sin M
d) cos R and sin N
PLEASE HELP I NEED TO PASS!
Which table has a constant of proportionality between y and x of 2?
A
B
C
HELP!
Answer:
Its B
Step-by-step explanation:
Multiply x by 2 to get your answer
Suppose MN= 14 cm and m
Answer:
what exactly is the question bro or babe
Answer:
?
Step-by-step explanation:
What is the density of an object with a mass of 25 grams and volume of 37 cubic centimeters.
Answer:
25x37=925
Step-by-step explanation:
2. 1. Are the following lines parallel? Explain using slopes. ty (0, 3) (-6, 1) 1 (4, 1) 2 4 6 0 2 62 (0, -2)
Answer:
confused
Step-by-step explanation:
I need help with my math problem
Answer:
C
Step-by-step explanation:
Y= -2(3)^2 - 3(3) -6
Y= -2(9) -9 - 6
Y= -18 - 15
Y= -33
Solve the equation and enter the value of x below.
X-(-5) = -23
x=
Answer:
x = -28
Step-by-step explanation:
x-(-5) = x + 5
x + 5 = -23
-23 - 5 = -28
x = -28
The cafeteria has 28 bottles of orange juice and 14 bottles of apple juice. An equal number of orange and apple juice are displayed in each row. What is the greatest number of orange juice bottles can be in each row?
Shayla says each row will have 28 orange juice bottles but Marcos says there will be 14 bottles in each row. Who is correct: Shayla or Marcos?
Answer:
The greatest number of orange juice bottles that can be displayed with the apple juice is 14. But if you want it in rows, its 2 or 8.
Step-by-step explanation:
Answer:
Marcus is right: 14 orange juice2.25x=27
Addition Property
Substraction Property
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Answer:
wat we were talking about i didnt turn on my cam bc i dont want some stranger looking at my ugly a*s
Step-by-step explanation:
please help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
how we can help u..............
b) Write the following numbers in order of size.
Start with the smallest number.
0.054 0.54 0.45
0.405
o
8
Answer:
0
0.054
0.405
0.45
0.54
8
Step-by-step explanation:
(4x^4y)^2
i need help
Answer:
16x⁸y²
Step-by-step explanation:
Answer:
16x^8y^2
Step-by-step explanation:
what you do is simplify the expression
In the function f (x) = = (x²-1) / (x-1), what happens if x takes the value of 1? Explain your answer.
Answer:
If x=1, then f(x)= undefined
Step-by-step explanation:
1*1=1
1-1=0
0/0
You can't divide by 0, so anything that is divided by 0 is undefined.
((1*1)-1)/(1-1)
(1-1)/(1-1)
0/0
0/0=Undefined
f(x)= undefined
Shelly and Terrence completed a different number of tasks in a game. Shelly earned 90 points on each task. Terrence's total points were 20 less than Shelly's total. The expression below shows Terrence's total points in the game:
90x − 20
What does the factor x of the first term of the expression represent?
Answer: Its B i think
Step-by-step explanation:
NEED HELP ASAP BRAINLY IF CORRECT
Answer:
25r +30j = 460
r - j = 3
Step-by-step explanation:
Let r and j represent Riley's hours and Jace's hours, respectively. The equations could be ...
25r +30j = 460
r - j = 3
__
The solution is (r, j) = (10, 7).
what is the number 0.0000 04 in standard form
Answer:
4x10-6 power
you just need to count the spaced or numbers till you get to 4 then put 10 then to the power of whatever and its -6 because it started from a small number
Given that 2x + 1 =5, what is the value of (x+3)^3
Answer: 125
Step-by-step explanation:
First, solve for x in the first equation.
1) Subtract 1 from both sides.
2x = 4
2) Divide by 2 on both sides.
x = 2
Next, substitute the value of x into the second expression.
(2 + 3)^3
= 5^3
= 125
Answer:
The value of (x + 3)³ is 125.
Step-by-step explanation:
First, we have to find the value of x.
To do so, start with the first equation, 2x + 1 = 5.
We can easily solve this equation to find the value of x.
First, start by subtracting 1 from each side.
This leaves us with 2x = 4.
Next, divide by two on each side.
This will leave us with the answer x = 2.
Now we know the value of x = 2.
All that's left to do is substitute the value of x, 2, for x.
First, start with the second equation (x + 3)³.
We know that x is equal to 2, so we can enter 2 for x.
We then have the equation (2 + 3)³.
Next, solve.
Add the 2 and the 3 together.
Now, the equation is 5³.
5³ is equal to 5 · 5 · 5
5 · 5 · 5 = 125
To sum up,
We found out that x = 2
Using 2 for x, we found out that (x + 3)³ is equal to 125.
Alan drive 210 miles using 9 gallons of gas. At this rate,how many gallons of gas would he need to drive 413 miles?
Answer:
9636.66666665,or, 9637
Step-by-step explanation:
What is the degree of the expression below?
x2-3x +7
Answer:
1
Step-by-step explanation: