I NEED HELP PLZ ANSWER CORRECTLY!!!!!!
(a,b) (less, greater)

Answer:

B

Step-by-step explanation:

A biased sample is a sample that does not accurately represent the population.

The survey asked only girls, but we can assume this school has both boys and girls. Therefore, by only asking girls, it creates a bias, because the boys in the school are not represented.

Therefore, the correct choice is B: biased sample.

Answer:

Reindeer runs in 3 hrs = 20×1/4 miles

Reindeer runs in 1 hr = 81/4 × 1/3 = 6 × 3/4 miles (option 2)

Answer:

We can estimate a population of 500 birds.

Step-by-step explanation:

We can estimate the total bird population using a rule of three with the information given:

If we find 5 birds with the foot band among 100 birds captured, how many birds there are in total if inicially we put foot bands in 25 birds?

5 birds with foot band -> 100 birds captured

25 birds with foot band -> X total birds

X * 5 = 25 * 100

X = 25 * 100 / 5 = 500 birds

We can estimate a population of 500 birds.

Answer:

Label: About 527.9 square centimeters

Aluminum: About 835.7 square centimeters

Step-by-step explanation:

Amount of paper needed for the label:

You can imagine taking off the label and unrolling it, forming a rectangle. The height of this rectangle will be the height of the cylinder, while the length of the rectangle will be the circumference of the cylinder. Therefore, the area of that rectangle will be [tex]2\pi r h= 2 \cdot \pi \cdot 7 \cdot 12\approx 527.9[/tex].

Amount of aluminum needed for the can:

This time, you need to add in the top and bottom of the can as well, which each have area [tex]\pi r^2[/tex]. Together, they have area [tex]2\pi r^2=2\cdot \pi \cdot 7^2\approx 307.9[/tex]. Adding this to the area of the sides, you get a total of about 835.7 square centimeters.

Hope this helps!

Answer:-7

Step-by-step explanation:

Answer:

-7

Step-by-step explanation:

Answer:

About 113.1

Step-by-step explanation:

Area of a circle= πr2

Radius= 6

6x6=36

36π= About 113.1

Answer:

work is shown and pictured

Answer:

A

Step-by-step explanation:

To determine if (x - 2) is a factor of f(x)

Evaluate f(2) and if equal to zero then (x - 2) is a factor

f(2) = 2³ + 3(2)² - 2 - 18

     = 8 + 12 - 2 - 18

     = 0

(x - 2) is a factor of f(x) because f(2) = 0 → A

The answer to the question "Use the remainder theorem to determine whether x - 2 is a factor of [tex]f(x) = x^3+3x^2-x-18[/tex]" is option A: Yes, x - 2 is a factor of f(x) because f(2) = 0

The given function is:

[tex]f(x) = x^3+3x^2-x-18[/tex]

The function [tex]f(x) = x^3+3x^2-x-18[/tex] is divided by x - 2

x - 2 will be a factor of [tex]f(x) = x^3+3x^2-x-18[/tex] only if f(2) = 0

Substitute x = 2 into [tex]f(x) = x^3+3x^2-x-18[/tex]

[tex]f(2) = 2^3 + 3(2)^2 - 2 - 18\\\\f(2) = 8 + 3(4) - 2 - 18\\\\f(2) = 8 + 12 - 20\\\\f(2) = 20 - 20\\\\f(2) = 0[/tex]

Since f(2) = 0, then we  can conclude that x - 2 is a factor of  [tex]f(x) = x^3+3x^2-x-18[/tex]

Learn more here: https://brainly.com/question/22237647

Answer:

80,000 people would answer in a town of 200,000 people

Answer:

80,000 people.

Step-by-step explanation:

Let's use a ratio:

voters : people overall

   4      :          10

  80    :        200

80,000:   200,000

80,000 out of 200,000 people voted.

Answer:

x=1

y=5

Step-by-step explanation:

Found the answer online at math      way

no work and don't report me or delete my answer!!!

Answer: 108π inches squared

Step-by-step explanation:

Formula : Area of sector = [tex]\dfrac{\theta}{360^{\circ}}\times\pi r^2[/tex]

where , r= radius and [tex]\theta =[/tex]

Given : A certain car's windshield wiper has a total length of 22 inches. As the wiper pivots it clears a sector with a central angle of 120 degrees.

If only 18 inches of the wiper cleans the windshield, then we take radius of the range of wiper cleaining = 18 inches

The area of the windshield that is wiped during each swing = Area of the sector made by wiper of  with a central angle of 120 degrees.

[tex]=\dfrac{120}{360}\times\pi (18)^2\\\\=\dfrac{18^2}{3}\pi=\dfrac{18\times6}{1}\pi=108\p\text{ inches}^2[/tex]

Hence, the area (in exact form) of the windshield that is wiped during each swing is 108π inches squared.

Answer: b. The sample should be chosen at random so that it is fair.

Step-by-step explanation:

Looking at the options:

a. The sample should be chosen based on specific criteria, such as the youngest students in the  class.

This is false. Choosing a sample size based on specific criteria may skew the data unfairly. For example, in a survey on students' studying habits, choosing only the students with lowest grades would be an inaccurate representation of the data.

b. The sample should be chosen at random so that it is fair.

This is true. Randomizing a sample eliminates any bias, whether intended or unintended.

c. The sample should consist of every person in the population being studied.

Although it is ideal to survey every person in order to get the most accurate data, doing so is often impossible given the scope of a data set. Doing a survey on high schooler's study habits cannot possibly get data from every person in the population, as there are high school students across the world.

d. The sample size should always be exactly one person or piece of data.

One person's data is not a survey, it is just an opinionated study. Sample size should always be large enough to eliminate any accidental bias.

The correct choice is B.

Answer:

C.

Step-by-step explanation:

By analyzing the functions f(x) and g(x), we can see that they are both quadratic relations.

To find the minimum value, we want to find the y-coordinate of the vertex.

In f(x), by using the formula (-b/2a), we get the x-coordinate of the vertex, 70. When we substitute 70 into the function, we get 55 as our minimum.

In h(x), we can see that the lowest y-coordinate in the given points is 899.52. So (1, 899.50) is our vertex.

This means that in f(x), the minimum production cost is $70. In contrast, in h(x), the minimum production cost is $899.50. Therefore f(x) has a lower minimum, with its minimum value at (70, 55), our vertex.

Answer:

The Answer is C. f(x) at (70, 55)

Hope This Helps!

Answer:

6

Step-by-step explanation:

to find the mean, you must add all the numbers together and divide by the amount of numbers. for example, 2+4+6+8+10=30. next, you divide 30 by the amount of numbers, which is 5. if you count there are five numbers. so 30÷5=6 :)

Answer:

b

Step-by-step explanation:

3 + 4x < 2(1 + 2x)

3 + 4x < 2 + 4x

Answer: the second answer

Step-by-step explanation:

If we want to find an inequality with no solution, that means we can expect no x and an unbalanced inequality (e.g., 3<0 which is untrue).

The second one is like that because the inequality is

3+4x[tex]\leq[/tex]2(1+2x)

If we solve it out, we get

3+4x[tex]\leq[/tex]2+4x

When you remove the variable from both sides, you now have

3[tex]\leq[/tex]2

This statement is false, since 2 will never be greater than 3.

If we look at the others, we can see that there are answers for all of them.

Answer:

a2 =14

a4 = 22

a11 = 50

Step-by-step explanation:

an = 10 + (n-1) *4

n is the term number

Let n =2

a2 = 10 +(2-1)*4 =10 +(1)*4 = 14

Let n =4

a4= 10 + (4-1)*4 = 10 *3*4 = 10+12 = 22

Let n = 11

a11 = 10 +(11-1)*4 = 10 *10*4 = 10+40 = 50

I belive your answer should be letter B

Answer:

c

Step-by-step explanation:

the correct choice is c

Answer:

2.

a. 14 cm

b. 17 cm

c. 6 cm

d. 8 cm

3.

a. 22 cm

b. 36 cm

c. 16 cm

d. 15 cm

4.

a. 10 cm

b. 40 cm

c. 28 cm

Step-by-step explanation:

The Pythagorean Theorem states the sum of two sides length equals the length of the hypotenuse of the triangle.

Hope this helps!!! PLZ MARK BRAINLIEST!!!

Answer:

100 percent

Step-by-step explanation:

if x of y is y....

x is always 100!

Answer:

(0, -2)

Step-by-step explanation:

y= 2x - 2

To find the y-intercept, or where the graph hits the y-axis, you plug 0 in for x

y= 2(0) - 2

y= -2

because 2 times 0 is 0, then 0 - 2 is -2

If they ask for just the value, it is -2

If they ask for the coordinate, it is (0, -2)

Answer:

the answer is -2

Step-by-step explanation:

Answer:

50.68

Step-by-step explanation:

The higher priced shoes are full price and the lower priced shoes will be 1/2 price

74.99 + 1/2 (68.55)

74.99 + 34.28

109.27

He had 159.95 in credit

159.95-109.27

50.68 in  return

Formula for the area of a quarter circle: A = (pi x r^2) / 4

A = (pi x 2^2) / 4

A = (pi x 4) / 4

A = 4pi / 4

A = 1pi = 3.14 square miles

Hope this helps! :)

Answer:

Check the explanation

Step-by-step explanation:

Present predicted

Revenue - per test 10000 8000

Variable cost - per test 7000 7000

Contribution – per test 3000 1000

Net income (10,000 test – 11,500 tests) 30,000,000 11,500,000

I tried to do it and this is what i got

mean - 4.19

median - 3 or 4

Modes L to G - 0,1,1,2,2,3,3,3,3,3,4,4,5,5,5,6,7,7,7,8,9 and the most occuring number is 3

Range - 9

I tried i hope this can help, i'm sorry if not.

As always i would appreciate a brainliest

Answer:

Answer is D.

6 x 3 =1 8

9 x 3 = 27

11 x 3 = 33

14 x 3 = 42

18 x 3 = 54

c = 3 x w

Step-by-step explanation:

Answer:  What is the "..." for?

Step-by-step explanation:

Answer: x = 6, y = 4

Step-by-step explanation:

Given the following :

In parallelogram DEFG:

DH = x + 2, HF = 2y, GH = 4x – 3, and HE = 5y + 1

According to the diagram,

The diagonals of the parallelogram buscect each other

The diagonal GE:

GH = HE

4x - 3 = 5y + 1 - - - - (1)

The Diagonal DF:

DH = HF

x + 2 = 2y

x = 2y - 2 - - - - - (2)

Replace x = 2y - 2 in equation (1)

4(2y - 2) - 3 = 5y + 1

8y - 8 - 3 = 5y + 1

8y - 5y = 1 + 8 + 3

3y = 12

y = 4

Substityte y = 4 in equation (2)

x = 2(4) - 2

x = 8 - 2

x = 6

x = 6, y = 4

Answer:

C) 5 less than z is 33

Step-by-step explanation:

z-5=33

z-5+5=33+5

z=38

38-33=5