Students in a high school mathematics class decided their term project would be a study of the strictness of
the parents or guardians of students at their school. Their goal was to estimate the proportion of students in
their school who thought of their parents or guardians as “strict”. They do not have time to interview all
students in the school, so they plan to obtain data from a sample of students. Which of the following
describes the best design for this study?
A. Simulation
B. Observational study
C. Survey
D. Experiment

Answer:

[tex]25m^{2} -40m+16[/tex]

Step-by-step explanation:

Rewrite (5m−4)^2 as (5m−4)(5m−4).

Expand (5m−4)(5m−4) using the FOIL Method.

[tex]25m^{2} -40m+16[/tex]

Answer:

X= -12 Y=10

Step-by-step explanation:

The solution is, Solve of the system of equations.

9x+11y=2 & 3x+4y=4 is, x = -12 & y =10.

An equation is a  mathematical statement that is made up of two expressions connected by an equal sign.  In its simplest form in algebra, the definition of an equation is a mathematical statement that shows that two mathematical expressions are equal. For instance, 3x + 5 = 14 is an equation, in which 3x + 5 and 14 are two expressions separated by an 'equal' sign.

here, we have,

given that, the system of equations.

9x+11y=2 .......(1)

3x+4y=4 ...........(2)

now, for solving, multiply (2) by 3 & subtract from (1),

we get,

9x + 11y =  2

9x + 12y = 12

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

y= 10

from (1), we get, x = -12

Hence, The solution is, Solve of the system of equations.

9x+11y=2 & 3x+4y=4 is, x = -12 & y =10.

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Answer:

Step-by-step explanation:

I put incorrect

Second box is 4

And third box is 4

And fourth box is 1/12

Answer:

Gavin is correct

Step-by-step explanation:

2 box is 3

3 box is 1/3

So the answer is 1/9

Answer:

Juan can consume 2.22 calories per day

Step-by-step explanation:

[tex]68.820 \div 31 \: day \: month \: \\ \\ = 2.22[/tex]

Answer:

4√2

Step-by-step explanation:

√32 = √(16 * 2) = 4√2

Answer: c

Step-by-step explanation:

y=(x-7)^2+7

Answer:

Nicholas pulls 5 blue marbles from the bag.

Step-by-step explanation:

Since Nicholas performs an experiment in which he pulls a marble from a bag, and in his experiment, he finds that he is twice as likely to pull a red marble as a blue marble, to determine, if Nicholas pulls 10 red marbles, how many blue marbles does he pull, the following calculation must be performed:

10/2 = X

5 = X

Therefore, Nicholas pulls 5 blue marbles from the bag.

Answer:

A. 2

Step-by-step explanation:

I calculated it logically

Answer:

750 monkeys (probable chance)

Step-by-step explanation:

100 : 50

100 square miles to a 2:1 ratio of 50 monkeys

Simply, insert the new area into the ratio to get the result.

1500 ---> 2:1

1500/2 = 750

1500:750

Thus, there would probably be 750 monkeys inhabiting a 1,500 square mile jungle.

Answer:

.quadrant 4 is the new point locatef

Answer;

14x-12

Explanation:

Since we are not asked what to fine, we can find the perimeter of the rectangle

Perimeter = 2(L+W)

Perimeter = 2(2x+1+5x-7)

Perimeter = 2(7x - 6)

Perimeter = 14x - 12

Hence the perimeter of the rectangle is 14x-12

=========================================================

Explanation:

We have c^2 + 2c, where 2 is the coefficient of the c term

This halves to 2/2 = 1, and then we square that to get 1^2 = 1.

Adding 1 to c^2+2c will result in c^2+2c+1, allowing it to be factored. This is because it's a perfect square

The rule we use is

(a+b)^2 = a^2 + 2ab + b^2

Answer:

375 miles

Step-by-step explanation:

Create a proportion where x is the number of miles she can drive on 12.5 gallons of gas:

[tex]\frac{96}{3.2}[/tex] = [tex]\frac{x}{12.5}[/tex]

Cross multiply and solve for x:

3.2x = 1200

x = 375

So, with 12.5 gallons of gas, Sara can drive 375 miles

Answer:

780

Step-by-step explanation:

24 - 67 = - 43

- 43 - 88 = - 131

- 131 + 77 - 77 = - 131

- 131 + 78 = - 53

- 53 - 55 = - 108

- 108 + 888 = 780

Answer:

c is the correct answer but i am not sure

Answer: 25.64

Step-by-step explanation:

165 students who have contracted the flu by May.

A mathematical function with the formula f(x) = [tex]a^x[/tex] is an exponential function. where a is a constant known as the function's base and x is a variable. The transcendental number e, or roughly 2.71828, is the exponential-function base that is most frequently encountered.

As, there are 6 months from November to May.

Let the number of months be x.

So, the total is= 26[tex]( 1 + 36)^x[/tex]

when x= 6

So, total= 26[tex]( 1 + 36)^6[/tex]

Total = 6.328 x 26

Total = 164.5

Total = 165 people

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Answer:

3

Step-by-step explanation:

3 × 3 = 9

( 3 + 3 + 3 = 9 )

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Answer:

6

Step-by-step explanation:

6 times 6 is 36 and the formula for area is

lxw(Length times width)

Answer:

12 and 10

Step-by-step explanation:

Answer:

11 and 21

Step-by-step explanation:

Let the first number equal x. If the first number, the second number is ten more, and can represented as x + 10. Now, the sum is 32, so we can add the two numbers to get 32:

x + x + 10 = 32

2x + 10 = 32

2x = 22

x = 11

If the first number 11, the second number is 10 more, and therefore is 21.

Answer:

answer is (1,0)

Step-by-step explanation:

Answer:

x = 5

Step-by-step explanation:

Since this shape is a quadrilateral, the sum of the interior angles is 360.

Equation:

81 + 20x - 16 + 15x + 30 + 16x + 10 = 360

51x + 105 = 360

51x = 360 - 105

51x = 255

x = 5

Answer:

I got 21 ft

Step-by-step explanation:

I converted all of the measurements that were shown in feet to inches (there are 12 inches in 1 foot), then added all of the sides together. Once I got that answer, I converted the inches back to feet by dividing the sum of the sides by 12.

Answer: the answer is C

Step-by-step explanation: because

A = 28.26 sq yds

Step-by-step explanation:

diameter (D) = 6 yds

radius (r) = D/2 = 3 yds

A = πr^2

= (3.14)(3 yds)^2

= 28.26 sq. yds

Answer:

3295000

Step-by-step explanation:

3295×999+3295

3295 * 999 = 3291705

3295×999+3295

3295 * 999 + 3295

3291705 + 3295 = 3295000

Answer:

0.3

Step-by-step explanation: