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spin [16.1K]
3 years ago
13

Bobby walked into Ms. Mathis' algebra class and asked each student what their favorite subject is. Is this an example of random

sampling?
A. No. This is a convenience sample. Only students in Ms. Mathis' class were picked.

B. Yes. This is a random sample. Bobby randomly selected Ms. Mathis's class to survey.

C. There is not enough information.​
Mathematics
2 answers:
Fudgin [204]3 years ago
7 0

Answer:

B

Step-by-step explanation:

because he is doing a graph in math class and math class is the only area were you do graphs

Leni [432]3 years ago
3 0

Answer:

C there is not enough information

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1

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1 times 1 times 1 = 1

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1.6 y - 0.7 + 3.8y + 2
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5.4y + 1.3

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a rectangular prism has a height of 22 yards and a base with area 152 square yards. What is the volume?
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height times base equals volume

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Vertical angles are <br><br> 90 degrees <br> Adjacent <br> Congruent<br> Straight
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2 years ago
A child’s building set contains a brick with dimensions 63 x 31 x 18mm . Assume this brick is a replica of a real brick that has
TEA [102]

The surface area and volume of the real brick will be 983.2 cm²and 1738.11 cm³ respectively.

<h3>What is volume?</h3>

The term “volume” refers to the amount of three-dimensional space taken up by an item or a closed surface. It is denoted by V and its SI unit is in cubic cm.

The scale factor is ;

r = 630 cm /23

r = 27

L = 23 cm

b = 310 / 27 = 11.48 cm

h = 180/27 = 6.6 cm

The surface area of the brick;

A = 2(lb+bh+hl)

A = 2( 23 ×11.48+11.48×6.6+6.6×23)

A= 983.2 cm²

The volume of the brick is;

V= lbh

V=23 × 11.45 ×6.6

V=1738.11 cm³

Hence the surface area and volume of the real brick will be 983.2 cm² and 1738.11 cm³ respectively.

To learn more about the volume, refer to brainly.com/question/1578538

#SPJ1

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