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joja [24]
3 years ago
12

A teacher asks students to list the math lessons they learned on nine random school days in the past month. She evaluates the st

udents’ performance on this assignment to get a general picture of how well students are taking notes. This teacher’s method is an example of?
A. systematic random sampling
B. Simple random sampling
C. Convenience sampling
D. Stratified sampling
Mathematics
1 answer:
N76 [4]3 years ago
8 0
<span>Hope this helps: C. Convenience sampling</span>
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I need help asap pls ​
jarptica [38.1K]

Answer:

3m I believe I'm not fully sure

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3 years ago
What is the area of a trapezoid with bases of 15.8 yd and 21.8 yd and a height of 11.7 yd?
DedPeter [7]

Add the bases together, divide that by 2 then multiply by the height.

15.8 + 21.8 = 37.6

37.6/2 = 18.8

18.8 x 11.7 = 219.96 yd^2

3 0
3 years ago
Read 2 more answers
A window is shaped like a parallelogram. The base is 16 inches long. The area is 608 square inches. What is the height of the wi
OleMash [197]

Answer:

The height of the window is <u>38 inches</u>.

Step-by-step explanation:

Given:

A window is shaped like a parallelogram.

The base is 16 inches long.

The area is 608 square inches.

Now, to find the window's height.

Let the height be h.

The area = 608 square inches.

The base (b) = 16 inches.

Now, to get the height of the window we put formula:

Area =b\times h\\\\608=16\times h\\\\Dividing\ both\ sides\ by\ 16\ we\ get:\\\\38=h\\\\h=38\ inches.

<u><em>Thus, the height is 38 inches.</em></u>

Hence, the height of the window is 38 inches.

8 0
3 years ago
1 quart = ? pints=?cups
jolli1 [7]

\Huge\green{\tt{✏Answer✏}}

<em>1 us liquid quart =</em>

<h2><em>2 us liquid </em><em>pints</em></h2>

<em>\Huge\blue{\tt{✏Explanation✏}}</em>

<em>#CarryOnLearning</em>

<h2><em>hit that heart and dont forget to follow hehe thx<3</em></h2>

\color{blue}{⊱─━━━━━━━━⊱༻●༺⊰━━━━━━━━─⊰}

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3 0
2 years ago
Subtract these polynomials.
uranmaximum [27]

Answer:

B.   -2x2 + 6x + 6.

Step-by-step explanation:

(2x2 + 4x + 3) - (4x2 - 2x-3)   Distribute negative over the parentheses:

= 2x2 + 4x + 3 - 4x2 + 2x + 3

= 2x2 - 4x2 + 4x + 2x + 3 + 3

=  -2x2 + 6x + 6.

6 0
3 years ago
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