The nutrition committee at a middle school has decided to find out which vegetables are most popular among the 500 students at the school. Which sampling method is the BEST choice to use?
Ask all the students from a randomly chosen class of 25 students to choose their favorite vegetables.

Ask 100 randomly chosen students from the student population to choose their favorite vegetables.

Ask the parents of 100 randomly chosen students to choose their favorite vegetables.

Ask 25 students who have purchased vegetables during lunch to choose their favorite vegetables.

Answer:

Thus, the ratio of the central angles is 4 : 9.

Step-by-step explanation:

Area, A = 12 π square units

radius, R = 6 units

radius, r = 4 units

Area of sector is given by

[tex]A=\frac{\theta }{360}\times \pi r^{2}[/tex]

For first sector

[tex]12\pi=\frac{\theta }{360}\times \pi \times 6^{2}\\\\\theta = 120^{o}[/tex]

For second sector

[tex]12\pi=\frac{\theta' }{360}\times \pi \times 4^{2}\\\\\theta' = 270^{o}[/tex]

So, the ratio is

[tex]\frac{\theta}{\theta'}=\frac{120}{270} =4 : 9[/tex]

Answer:

4 : 9

Step-by-step explanation:

Given:

Two sectors, each has an area of 12pi, but with radii r1=6 and r2=4 units.

Find ratio of central angles.

Solution:

Let A = central angle

Area of a sector = pi r^2 (A/360)

Since both sectors have the same area,

pi r1^2 (A1/360) = pi r2^2 (A2/360)

simplifying

A1 r1^2 = A2 r2^2

Therefore

A1 : A2  = r2^2 : r1^2 = 4^2 : 6^2 = 4 : 9

Answer:

8568 ft³

Step-by-step explanation:

14 x 612 = 8568 ft³

If my answer is incorrect, pls correct me!

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-Chetan K

Answer:

A

Step-by-step explanation

180-(114+47)=19

Answer:

Amy

Explanation:

Because add all of the numbers and divide by 7.

The measure of center I would use for Amy is 6 because it is higher than half of the numbers and lower than half of the numbers.What I would use for Chelsea is 7 because of the same reason.

Answer:

Hi there! the answer should be: Katie can draw 182 pictures in 312 minutes

Step-by-step explanation:

312 ÷ 24 = 13

14 x 13 = 182

hope this helped qwq

Answer:

1. (J+s)÷2

2. (C·4)+i

3. (M+a)4

4. G-125

Step-by-step explanation:

a= 9

b= 13

➠ 2(9+13)

➠ 2 × 22

Ans ➠ 44mm

No, this is not a random sample.

Answer:

radius r = 12 in

diameter d = 24 in

circumference C = 75.3982237 in

area A = 452.389342 in2

Step-by-step explanation:

Answer: integer +4Y, Integer +5.4X

Answer:

(9,3)

Step-by-step explanation:

Answer:

5 127/200 meters

Step-by-step explanation:

4 1/2 = 4 5/10 | 4/5 = 8/10

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

4 5/10 = 4.5 | 8/10 = 0.8

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

4.8 divided by 0.8 = 5.625

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

5.635 = 5 635/1000

635/1000 divided by 5 = 127/200

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

5 + 127/200 = 5 127/200

The unit rate in meters per year is 8/45 meter/year.

Given that, a tree in John's backyard has been growing for [tex]4\frac{1}{2} = \frac{9}{2}[/tex] years. The tree is 4/5 meters tall.

Unit rate can be defined as the ratio between two measurements with the second term as 1. It is considered to be different from a rate, in which a certain number of units of the first quantity is compared to one unit of the second quantity.

Now, unit rate = 4/5 ÷ 9/2

= 4/5 × 2/9

= 8/45 meter per year

Therefore, the unit rate in meters per year is 8/45 meter/year.

To learn more about the unit rate visit:

https://brainly.com/question/11258929.

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Answer:

3, 4

Step-by-step explanation:

Answer:

50 degrees

Step-by-step explanation:

Answer:

50

Step-by-step explanation:

The entire angle is 80 as shown.

The value of the missing angle can be found by using the following

F=80-30

F=50

Answer:

how much km was left

Step-by-step explanation:

his whole journey length would be if u add both km

Answer:

3/7 is the probability that the teacher will randomly select a boy.

Hope this helps! :)

The probability that the teacher randomly selects a boy is 3/7

The given parameters are:

Boy = 6

Girls = 8

The total number of students is:

Total = 6 + 8 = 14

The probability of selecting a boy is:

P(Boy) = 6/14

Simplify

P(Boy) = 3/7

Hence, the probability that the teacher randomly selects a boy is 3/7

Read more about probability at:

https://brainly.com/question/25870256

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Answer:

The area is 452.39

The Circumference is 75.36

Step-by-step explanation:

Answer:

Step-by-step explanation:

3

Answer:

Part A is 64

Step-by-step explanation:

i dont know part B yet

Answer:

196.9

Step-by-step explanation:

Step-by-step explanation:

132.71 x 10 with the power of 2 = 13271

Answer:

LMK is 30  

Step-by-step explanation:

inside the triangle, the LMN is the equation 3x=90degrees

under the KN is 4x

on the left is 150dgrees = 5x

3x+4x+5x=360

add the x's together

12x=360

divide

x=30

LMK= 150-90/2=60/2=30

Answer:

1.3 < x < 6.7

Step-by-step explanation:

minimum

4.0 - 2.7 = 1.3

maximum

4.0 + 2.7 = 6.7

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

1.3 < x < 6.7

The perimeter of the triangle is 70.82 inches.

Given as :

The length of the altitude is 30 inches, and

The length of the base is 10 inches

Right triangle is defined as a triangle which one angle is a right angle or two sides are perpendicular.

Let, perpendicular = 30 and base = 5

According to Pythagoras theorem,

A right-angled triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.

perpendicular² + base² = hypotenuse²

Substitute the values,

30² + 5² =  hypotenuse²

900 + 25 =  hypotenuse² or

hypotenuse² = 925

hypotenuse = √925

hypotenuse = 30.41

The perimeter of the triangle can be determined as:

Perimeter of the triangle = l₁ + l₂ + l₃

Perimeter of the triangle = 30.41+ 10 + 30.41

Perimeter of the triangle = 70.82

Hence, the perimeter of the triangle is 70.82 inches.

Learn more about right triangle here:

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Answer:

yes

Step-by-step explanation:

for question 1

Area of Base B =45×25 = 1125 cm²

perimeter of base P = 2(45+25) = 140 cm

Height = 15 cm

Using the formula

Surface area = 2B + Ph

A = 2×1125 + 140×15= 4350 cm²

Voume = Bh = 1125×15= 16875 cm³

For question 2,

Area of base = 7× 5/2= 17.5 cm²

Perimeter of base = (7+7+7) = 21 cm

Surface area = 2B + Ph

Surface area of prism = 2×17.5+ 21×10 = 245cm²

Volume = Bh = 17.5×10 = 175 cm³

Answer:

Step-by-step explanation:

for question 1

Area of Base B =45×25 = 1125 cm²

perimeter of base P = 2(45+25) = 140 cm

Height = 15 cm

Using the formula

Surface area = 2B + Ph

A = 2×1125 + 140×15= 4350 cm²

Voume = Bh = 1125×15= 16875 cm³

For question 2,

Area of base = 7× 5/2= 17.5 cm²

Perimeter of base = (7+7+7) = 21 cm

Surface area = 2B + Ph

Surface area of prism = 2×17.5+ 21×10 = 245cm²

Volume = Bh = 17.5×10 = 175 cm³

Answer:

9 1/4

Step-by-step explanation:

12 3/8 - 3 1/4= 9 1/4

Answer:

1. Positive

2. Negative

3. Negative

4. Positive

Step-by-step explanation: