You want to estimate the number of students in your school who support extra funding for the history club. You survey every ninth student who enters the
school.
Determine whether the sample is based or unbiased

Answers

Answer 1

Answer:

unbiased

Step-by-step explanation:

it would be biased if you lets say survey the history club kids


Related Questions

Rearrange the following numbers in order from least to greatest.

2, -7, 3, -9, -14, -8, 0, -10, -25


will mark the best answer or 1st answered brainliest or whatever

Answers

Answer:

-25, -14, -10, -9, -8, -7, 0, 2

Step-by-step explanation:

You do thing and it work

-25 , -14 , -10 , -9 , -8 , -7 , 0 , 2 , 3

Select the correct answer.
Simplify the expression 53 × 5-5.

Answers

The answer is 260 is the answer

b) Write down the formula to find the perimeter of a circle.​

Answers

Answer:

C = 2πr

Step-by-step explanation:

We know that, the perimeter of a figure is equal to the sum of all sides.

A circle having no sides.

The perimeter of a circle = The circumference of the circle

The formula for the circumference of the circle is given by :

C = 2πr

Where

r is the radius of the circle

Hence, this is the required solution.

2x-1/4 + x/3 = 2
Solve the equation

Answers

Answer:

below

Step-by-step explanation:

steps are shown above

The circumference of a circle is 32 centimeters. Find the radius of this circle.
a. about 201.06 cm c. about 5.09 cm
b. about 100.53 cm d. about 10.19 cm

Answers

Answer:

r≈5.09cm

Step-by-step explanation:

Find two integers whose sum is 5 and product is -66 TWO INTEGRES
NOT 1 TWO

Answers

Answer:

-6 and 11

Step-by-step explanation:

The only factors of 66 are 11, 6, 2 and 3

11*6 is the only pair whose product is 66

The difference betwen 11 and 6 is 5

11 must be positive and 6 negative since the sum is positve

what is the slop of the line?


slope = 1/3
slope = -3
slope = 3​

Answers

Answer: slope = 3

Step-by-step explanation:

We can see from the point intersecting the y axis (y-intercept) to the point (1, 1) it goes up 3 and right 1 giving us the slope [tex]\frac{3}{1}[/tex] simplified to 3

If g(x)= x+2/x-2 and h(x) = 4 - X, what is the value of (GoH)(-3)?

A.) 8/5

B.) 5/2

C.) 15/2

D.)18/5​

Answers

Answer:

A. 8/5

Step-by-step explanation:

please be careful when typing the question. you made a mistake here (you wrote "x+2" instead of "x+1"). luckily you have provided also the screen shot.

the used symbolism of a composite function is nothing else than asking for

g(h(x)) for x=-3.

so, first we need to calculate h(-3) = 4 - -3 = 7

then we take that result as argument for g : g(7) = 8/5

so, altogether

g(h(-3)) = g(7) = 8/5

we can do this generically for x by substituting x in g by the expression of h

g(h(x)) = ((4-x) + 1) / ((4-x) - 2) = (5-x)/(2-x)

for x = -3 this gives (5- -3)/(2- -3) = 8/5

The value of the composite function  (g o h) (-3) is 9/5.

What is a function?

A function has an input and an output.

A function can be one-to-one or onto one.

It simply indicated the relationships between the input and the output.

Example:

f(x) = 2x + 1

f(1) = 2 + 1 = 3

f(2) = 2 x 2 + 1 = 4 + 1 = 5

The outputs of the functions are 3 and 5

The inputs of the function are 1 and 2.

We have,

First, we need to find the composition g o h, which means we need to substitute h(x) into g(x), so that:

(g o h)(x)

= g(h(x))

= g(4 - x)

= [(4 - x) + 2] / [(4 - x) - 2]

= (6 - x) / (2 - x)

Now, we can find (g o h)(-3) by substituting x = -3 into the expression above, which gives:

(g o h)(-3)

= (6 - (-3)) / (2 - (-3))

= 9 / 5

Therefore,

The value of (g o h)(-3) is 9/5.

Learn more about functions here:

https://brainly.com/question/28533782

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Pls help.

Thank You So Much if you did!

Answers

Answer:

1 a) 124

Step-by-step explanation:

x +1 /5 =25

x +1 =25*5

x+ 1=125

x = 125-1

x=124

PLEASE HELP I'LL GIVE BRAINLIEST

Answers

Answer:

Step-by-step explanation:

3

Help please ASAP ASAP

Answers

Answer:

-1/12

Step-by-step explanation:

The slopes of perpendicular lines are equivalent to -1.

Answer:

-1/4

Step-by-step explanation:

Subtract 12x from both sides to get -3y=-12x+81

Divide both sides by -3 to get y=4x-27

Take the negative reciprocal of 4, which is -1/4

Need to choose answers

Answers

Answer:

Box Number 3.

Step-by-step explanation:

4 is a coefficient in 4x because 4x is really 4*x which has 4 multiplying x. This is the same as 4 working with x. Also none of the other answers are true.

CAN SOMEONE HELP ME WITH THIS PLEASE AND THANK YOU.

Answers

Answer: 3 7/12

Step-by-step explanation:

1. Solving the whole number

4-1=3

2. Solving the fraction parts

3/4 - 1/6=

Find the LCM. The LCM is 12 so we rewrite the factions like this:

9/12-2/12=7/12

3. Add.

3+ 7/12= 3 7/12

Hey there!

4 3/4 - 1 1/6

= 19/4 - 7/6

= (19 × 6) - (7 × 4) / 4 × 6

19 × 6 = 114

7 × 4 = 28

= 114 - 28 / 4 × 6

4 × 6 = 24

114 - 28 / 24

114 - 28 = 86

= 86/24

= 3 7/12

Answer: 86/24 OR 3 7/12

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

can someone please help!! 30 POINTS!!

Answers

Answer:

y = 5

Step-by-step explanation:

| x | means absolute value. That is number itself ( without the negative sign)

y = |x| - 6

y = | -11 | - 6

y = 11 - 6 = 5

How many isosceles triangles in this pentagon?

Answers

It should be 8. Correct me if i'm wrong

Answer:

6 triangles

i am not very sure thou

True or False:
The value of y in the given equation is 18.
y + 17 = 36
True or false

Answers

Answer:

False ..... ....... . . .. ..

5.
Peter earns $9 each hour for the first 40 hours he works each week. For every hour he
works after 40 hours, he earns $12 each hour. Last week Peter earned $444.
Which equation could be used to find the number of hours, h, during which Peter
earned $12 last week?
A. (40 x 9) + h = 444
B. (40 x 9) - h = 444
C. (40 x 9) + 12h = 444
D. (40 x 9) - 12h = 444

Answers

The answer is C 40x9=360
444-360 = 84
84 /12= 7

The answer is C

Which expression(s) are equivalent to the given expression?

6x−18y+36

2(3x−9y+18) 2 times open paren 3 x minus 9 y plus 18 close paren

3(2x−6y+12) 3 times open paren 2 x minus 6 y plus 12 close paren

4(2x−14y+32) 4 times open paren 2 x minus 14 y plus 32 close paren

6(x−3y+36) 6 times open paren x minus 3 y plus 36 close paren

9(6x−2y+4)

Answers

Answer:

2 ( 3x - 9y + 18)

3 ( 3x - 6y + 12)

Inclusively:

6 ( x - 3y + 6)

In ▵ABC, if m∠A=80 degree, then m∠c cannot be
A) 80 degree
B) 90 degree
C) 95 degree
D) 105 degree

Answers

Answer:

95

Step-by-step explanation:

jdisusyhsyysysyydyydyyddhdhhdhhdhhd random

Find the greatest common factor of 15y^4 and 14y^2

Answers

Answer:

y^2

Step-by-step explanation:

Here, we want to get the greatest common factor

Looking at the two, 14 and 15 has no common factors

So, we shift focus to the y raised

We have this as ;

y^2( 15y^2 + 14)

Thus, y^2 is the common factor

find the sum of (2x-12) from x=7 to x=16

Answers

Answer:

it's 2 obviously

Step-by-step explanation:

thanks

Rewrite this equation in Slope Intercept form and
solve the equation at x = -1. Show your work.
2x + y = 6

Answers

Answer:

y = -2x+6

y=8  when x = -1

Step-by-step explanation:

2x + y = 6

Slope intercept form is  y = mx+b where m is the slope and y is the intercept

Solve for y

Subtract 2x from each side

y = -2x+6

The slope is -2 and the y intercept is -6

Let x = -1

y = -2(-1) +6

y = 2+6

y=8

(-1,8)

Answer:

y = -2x + 6

y = 8

Step-by-step explanation:

Rewrite this equation in Slope Intercept form

2x + y = 6

Subtract 2x from both sides

y = -2x + 6

------------------------------

solve the equation at x = -1

y = -2(-1) + 6

y = 2 + 6

y = 8

Find the value of A

Answers

Answer:

a = 5

Step-by-step explanation:

Angles A and B are the same at 45, a and b are also the same

The law of sines is based on the proportionality of sides and angles in triangles. The law states that for the angles of a non-right triangle, each angle of the triangle has the same ratio of angle measure to sine value.

sin(A)/a = sin(B)/b = sin(C)/c

Substitute the known values into the law of sines to find a.

SinA / a = sin(90) / 5√2

a = 5

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. Release your mouse button when the item is place. If you change your mind, drag the item to the trashcan. Click the trashcan to clear all your answers.
Put the following values in order from smallest to largest.

NEED ANSWERS ASAP ASAP ASAP. ANSWER VERY QUICK PLEASE. ITS A TEST!!!

Answers

0.08 -> 1/4 -> 0.3 -> 1/3 -> 40% -> 85%
1/4 = 0.25
1/3 = 0.3333 repeating symbol
40% = 0.40
85% = 0.85

Find the measure of CDE. The measure of CDE equals a certain # of degrees.

Answers

2x-13+3x-8+2x-3+2x-7+3x-1+2x+11+2x+9= (7-2)×180

16x-12=(7-2)×180

(7-2)×180 Work this out on a calculator

And then that answer=16x-12

Then you solve by adding 12 both sides and dividing by 16 both sides to get what x is.

change 45' into seconds.​

Answers

Answer:

2700 seconds

Step-by-step explanation:

The notation " ' " is said as "minutes".

° = degrees; ' = minutes; " = seconds

45 minutes

1 minute = 60 seconds

1*45=60*45

45 minutes = 2700 seconds

The water level at Lake Willow
was -14 feet. After 3 days of rain,
the water level rose by 23 feet.
What is the water level after the
rain?
+

Answers

Answer:

9ft

Step-by-step explanation:

-14 + 23 = 9

Find the surface area and volume of each cylinder:
a) Radius = 5 cm, height = 7.5 cm.
b) Diameter = 7 inches, height = 5 inches, state your answer in terms of .

Answers

Cylinder A -

Surface Area:

A = 2πrh + 2πr^2

A = 2 · π · 5 · 7.5 + 2 · π · 25 ≈ 392.69908

A = 392.7 cm^2

Volume:

V = πr^2h

V = π · 25 · 7.5 ≈ 589.04862

V = 589 cm^3

Cylinder B -

Surface Area:

A = 2πrh + 2πr^2

A = 2 · π · 3.5 · 5 + 2 · π · 12.25 ≈ 186.92476

A = 186.9 cm^2

Volume:

V = πr^2h

V = π · 12.25 · 5 ≈ 192.42255

V = 192.4 cm^3

Answer:

a) surface area: 125pi     volume: 187.5pi

b) (i dont know what you mean by "in terms of ." so ill give both)

surface area: 210pi or 659.734     volume: 61.25pi or 192.422

Step-by-step explanation:

a) surface area is this

2pirh+2pir^2

plug it in..

2pi(5)(7.5)+2pi(5)^2

simplify...

75pi+50pi

125pi

volume is this

pir^2h

plug it in...

pi(5)^2(7.5)

simplify...

187.5pi

b is basically same steps.

(i had to replace all the pi symbols with "pi" because it was inappropriate???)

answer as soon as possible

Answers

Answer:

a). 840 b). 14

Step-by-step explanation:

a). 840 miles

350 miles ÷ 25 gallons = 14

14 (miles per gallon) x 60 gallons of gas = 840

b). 14

(first step of the first answer)

350 miles ÷ 25 gallons = 14 miles per gallon

hope this helped!

a) 840 miles can go for 60 gallons of gas.

b) The mileage is 14 miles per gallon.

Here, we have,

given that,

A new truck can travel 350 miles on 25 gallons of gas.

now, we have,

a). we get,

the milage of the truck is:

350 miles ÷ 25 gallons = 14

so, we get,

for 60 gallons of gas it can go:

14 (miles per gallon) x 60 gallons of gas = 840

so, 840 miles can go for 60 gallons of gas.

b). and, again we have,

the milage of the truck is:

(first step of the first answer)

350 miles ÷ 25 gallons = 14 miles per gallon

so, The mileage is 14 miles per gallon.

To learn more on multiplication click:

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What is the value of x? Round the answer to the nearest tenth

Answers

Answer:

The answer is A.

Step-by-step explanation:

The answer is A because an obtuse angle rounds to 120 degrees, then you divide it by 6 which is A.

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