<img src="https://tex.z-dn.net/?f=4x%2B6over%207%5C%20%20%5Ctextless%20%5C%202" id="TexFormula1" title="4x+6over 7\ \textless \

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ludmilkaskok [199]

3 years ago

2" alt="4x+6over 7\ \textless \ 2" align="absmiddle" class="latex-formula">

Mathematics

1 answer:

Rzqust [24]3 years ago

6 0

Answer:

Inequality form: x<2/7

Interval notation: (-infinity, 2/7)

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

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If the standard deviation of an exam is 5, the z-score us 1.95 and the mean is 80; what is the actual test score? (Round the ans

skad [1K]

If the standard deviation of an exam is 5, the z-score us 1.95 and the mean is 80, the actual test score is; 89.75

<h3>How to solve z-score problems?</h3>

We are given;

Standard deviation; s = 5

z-score = 1.95

Mean = 80

Formula for z-score is;

z = (x' - μ)/σ

Thus;

1.95 = (x' - 80)/5

1.95 * 5 = (x' - 80)

9.75 = x' - 80

x' = 80 + 9.75

x' = 89.75

Read more about Z-score Problems at; brainly.com/question/25638875

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2 years ago

What is the perimeter? O2 cm O 5 cm O 10 cm O 20 cm

notsponge [240]

Answer:

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6 0

2 years ago

A sphere has a radius of 12 inches. A second sphere has a radius of 9 inches. What is the difference of the volumes of the spher

just olya [345]

Answer:

Solution given;

for sphere

radius [r]:12inches

another

radius [R]:9inches

Now

difference in volume of sphere:

volume of sphere of having radius [r-R]

= $\frac{4}{3} πr³$ - $\frac{4}{3} πR³$

= $\frac{4}{3} π$ (12³-9³)

= 1332π cubic inches

The volume of the larger sphere is ___1332__π cubic inches greater than the volume of the smaller sphere.

3 0

3 years ago

The cost (in dollars) of a custom made sweatshirt is represented by 3.5n +29.99, where n is the number of different colors in th

juin [17]

Answer:

$52.5n+449.85$

Step-by-step explanation:

The cost is given for 1 sweatshirt. To find the cost of 15 sweatshirts, we need to multiply the expression by 15. Let's do this:

$15(3.5n+29.99)\\=15(3.5n+29.99)\\=15(3.5n)+15(29.99)\\=52.5n+449.85$

This is the expression that represents the cost of 15 sweatshirts.

8 0

3 years ago

Anyone knows how to do this ?

exis [7]

700x0.08= 56 Hope this helps

8 0

3 years ago