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castortr0y [4]
2 years ago
11

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.
Mathematics
1 answer:
zysi [14]2 years ago
5 0

Answer:

Simple random sampling

Step-by-step explanation:

Hope this work :)

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Which matrix represents the system of equations below?
katovenus [111]
The matrix that best represents the linear system of equations must be written vector by vector in each of the rows. That is, components x in column 1, components and in column 2 and component z in column 3. In column 4 you write the results. Attached solution.

8 0
4 years ago
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The options for the first blank are 45, 240, 270, and 315
Schach [20]

Answer:

The solutions are <u>270°</u> and <u>450°</u>.

Step-by-step explanation:

Given:

cos\frac{x}{2} =\frac{\sqrt{2} }{2}.

So, the second and third quadrant angle to be calculated.

cos\frac{x}{2}=135

=x=270°.

And, cos\frac{x}{2}=225

=x=450°

Therefore, the solutions are <u>270°</u> and <u>450°</u>.

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3 years ago
Derrick family ordered 3 pizza with 8 slices each they ate 3/8 of the pizza what percentage of the pizza was left over
Alex Ar [27]
Divide 3 by 8 (the fraction): 3/8=.375. Make into a percent: 37.5% or 38% (depending on what your teacher wants) and that's your answer :)
4 0
3 years ago
You are 5 feet tall and cast an 8-foot shadow. A land post nearby casts a shadow that is 20 feet. Which equation can you use to
Anuta_ua [19.1K]
5ft. x
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6 0
4 years ago
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Someone please help me out i don´t understand this question <br> ill give you 21 points
suter [353]

Answer:

0.67

Step-by-step explanation:

Formula: k = y/x

k = 2/3

k = 0.66666666666

k = 4/6

k= 0.66666666666

k = 6/9

k = 0.66666666666

k = 8/12

Round 0.67

Hence, answer = 0.67

[RevyBreeze]

8 0
3 years ago
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