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3 years ago

Use technology or a z-score table to answer the question.

Mathematics

1 answer:

Drupady [299]3 years ago

8 0

Answer:

Step-by-step explanation:

Finding the z-score:

z = (x - μ) / σ

z = (66 - 57) / 9

z = 1

Using a z-score table or calculator:

P(z < 1) = 0.8413

84.13% of 4000 is:

0.8413 (4000) = 3365.2

Rounding up to the nearest whole number, approximately 3366 students will score less than 66. Answer C.

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The rectangular prism has a volume of 936 cubic inches. Write and solve an equation to find the missing dimension of the prism.

nikdorinn [45]

Step-by-step explanation:

A rectangular prism is nothing but a cuboid. Let the length , width and height of the rectangular prism be l, w and h.

We know that volume of a cuboid V = l×w×h

So, l×w×h = 936

So, we can find any dimension of the prism provided the the other two dimensions are given to us.

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3 years ago

P^2+2p-63=0<br> solve by completing the square

algol [13]

Step-by-step explanation:

p^2+2p=63

p^2+2p+1^2=63+1^2

p^2+2p+1=64

(p+1)^2=64

p+1=8

p=8-1

p=7

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3 years ago

Find the area of the shaded region. Round to the nearest tenth.

UkoKoshka [18]

Answer: 9.3

Step-by-step explanation:

Find the number in the tenth place 2 and look one place to the right for the rounding digit 8. Round up if this number is greater than or equal to 5 and round down if it is less than 5.

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3 years ago

If you answer my question I will answer yours meaning we both get points!

otez555 [7]

what's the question u want me to answer :)

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3 years ago

The sum of the measures of the angles of a triangle is 180 degrees°. The smallest angle of the triangle has a measure one fourth

vivado [14]

Answer:

8°,32°,140°.

Step-by-step explanation:

Sum of measure of angles of a triangle is 180°

Let the second smallest angle be x°

Smallest angle= $\frac{1}{4}$ x

Largest angle= 5 x- 20°

A T Q

x+ $\frac{1}{4}$ x + 5x-20= 180°

$\frac{4x+x+20x}{4}$ = 180+ 20

$\frac{25x}{4}$ = 200

x= $\frac{200}{25}$ × 4

x= 32°'

Smallest angle is 32°

Hence, the smallest angle is $\frac{1}{4}$ x= $\frac{1}{4}$ ×32°= 8°

Largest angle is 5x- 20= 5×32- 20= 140°

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3 years ago