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Verdich [7]
2 years ago
15

The mean score was 72. The standard deviation was 7 percentage-points. Based on this information, what is the best

Mathematics
1 answer:
fiasKO [112]2 years ago
5 0

Answer:

the number of student that took the test is missing

I think it is 100?

79 is 1 sigms (1 standard deviation) above the mean....

1 sd is 84% ... 16% are above the 79

multiply the students that took the test by .16

Step-by-step explanation:

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Solve the equation for y.<br> 3x + 7y= 29
Oxana [17]

Answer:

y = \frac{29-3x}{7}

Step-by-step explanation:

3x + 7y = 29 ( subtract 3x from both sides )

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y = \frac{29-3x}{7}

5 0
2 years ago
Find the volume of the prism.
Rudik [331]

Answer:

216 cubic meters

Step-by-step explanation:

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the base is a triangle so you find the triangles area and multiply it by the height

8 * 6 * 1/2 = 24

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6 0
2 years ago
A statement and portions of the flowchart proof are shown. Which reason should appear in box labeled 1?
larisa [96]

Answer:

Angle Addition Postulate

Step-by-step explanation:

Given:

m\angle UVW=30^{\circ}\\ \\m\angle WVX=75^{\circ}

Prove:

m\angle UVX=105^{\circ}

Proof:

1. m\angle UVX=m\angle UVW+m\angle WVX - Angle Addition Postulate

2. m\angle UVW=30^{\circ} - given

3. m\angle WVX=75^{\circ} - given

4. m\angle UVX=30^{\circ}+75^{\circ} - Substitution Property of Equality

5.  m\angle UVX=105^{\circ} - Simplify

4 0
3 years ago
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