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3 years ago

if you purchase 5 shirt whitch are on sale for 17.98$ each write a expression for the total cost if the shirts

Mathematics

2 answers:

OLga [1]3 years ago

8 0

5•17.98=89.9

$89.9 is needed

Lisa [10]3 years ago

8 0

You can make the expression: $17.98 ÷ 5 = ? in order to find out the price of each shirt...

Please mark as brainliest

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Part of the population of 7,750 elk at a wildlife preserve is infected with a parasite. A random sample of 50 elk shows that 11

Sergio039 [100]

Answer:

1,705 elk

Step-by-step explanation:

7,750 / 50 = 155 groups of elk

155 groups x 11 per group = 1,705 elk.

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2 years ago

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sdas [7]

Answer:

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Step-by-step explanation:

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2 years ago

At the toy store a $120 doll house is on sale for 40%? what is the amount

Sergeeva-Olga [200]

Answer:

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2 years ago

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Solve (10b+7b^2-6b^3)-(12b^2-3b^3)

MrRa [10]

Answer:

-3b³ - 5b² + 10b

General Formulas and Concepts:

Pre-Algebra

Distributive Property

Algebra I

Combining Like Terms

Step-by-step explanation:

Step 1: Define Expression

(10b + 7b² - 6b³) - (12b² - 3b³)

Step 2: Simplify

Distribute negative: 10b + 7b² - 6b³ - 12b² + 3b³
Combine like terms (b³): -3b³ + 10b + 7b² - 12b²
Combine like terms (b²): -3b³ - 5b² + 10b

3 0

2 years ago

Which function has the greatest rate of change on the interval from x = 3 pi over 2 to x = 2π?

vodka [1.7K]

The average rate of change for the function f(x) can be calculated from the following equation
$\frac{f( x_{2})-f( x_{1} )}{ x_{2} - x_{1} }$

By applying the last formula on the given equations
(1) the first function f
from the table f(3π/2) = -2 and f(2π) = 0
∴ The average rate of f = $\frac{f(2 \pi)-f( \frac{3 \pi}{2} )}{2 \pi - \frac{3 \pi}{2} } = \frac{0-(-2)}{ \frac{\pi}{2} }= \frac{2}{ \frac{\pi}{2} } = \frac{4}{\pi}$

(2) the second function g(x)
from the graph g(3π/2) = -2 and g(2π) = 0
∴ The average rate of g = $\frac{g(2 \pi)-g( \frac{3 \pi}{2} )}{2 
\pi - \frac{3 \pi}{2} } = \frac{0-(-2)}{ \frac{\pi}{2} }= \frac{2}{ 
\frac{\pi}{2} } = \frac{4}{\pi}$

(3) the third function h(x) = 6 sin x +1
∴ h(3π/2) = 6 sin (3π/2) + 1 = 6 *(-1) + 1 = -5
 h(2π) = 6 sin (2π) + 1 = 6 * 0 + 1 = 1
∴ The average rate of h = $\frac{f(2 \pi)-f( \frac{3 \pi}{2} )}{2 
\pi - \frac{3 \pi}{2} } = \frac{1-(-5)}{ \frac{\pi}{2} }= \frac{6}{ 
\frac{\pi}{2} } = \frac{12}{\pi}$

By comparing the results, The function which has the greatest rate of change is h(x)


So, the correct answer is option C) h(x)

4 0

2 years ago