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2 years ago

Which of these show a set of equivalent expressions ? select all that apply

Mathematics

1 answer:

miss Akunina [59]2 years ago

5 0

A, C, E are correct
See work you in photo below
Good luck

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Does the table below represent a function? <br> yes<br> no

Airida [17]

No the table doesn't

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3 years ago

Read 2 more answers

The pipe fitting industry had 546.5 thousand jobs in 2015 and is expected to decline at an average rate of 3 thousand jobs per y

lesya692 [45]

Answer:

The amount of jobs from fitting industry shall decline in 5.5 percent from 2015 to 2025.

Step-by-step explanation:

Due to the assumption of a yearly average rate, a linear function model shall be used. The expected amount of jobs ( $n$ ) after a certain amount of years (t) is given by the following formula:

$n = n_{o} + \frac{\Delta n}{\Delta t}\cdot t$

Where:

$n_{o}$ - Initial amount of jobs in pipe fitting industry, measured in thousands.

$\frac{\Delta n}{\Delta t}$ - Average yearly rate, measured in thousands per year. (A decline is indicated by a negative sign)

If $n_{o} = 546.5$ , $t = 2025-2015 = 10\,years$ and $\frac{\Delta n}{\Delta t} = -3\,\frac{1}{years}$ , then:

$n = 546.5+\left(-3\,\frac{1}{year}\right)\cdot (10\,years)$

$n = 516.5$

The percent change in jobs from pipe fitting industry is calculated as follows:

$\%n = \left(1-\frac{n}{n_{o}}\right)\times 100\,\%$

$\% n = \left(1-\frac{516.5}{546.5}\right)\times 100\,\%$

$\%n = 5.5\,\%$

The amount of jobs from fitting industry shall decline in 5.5 percent from 2015 to 2025.

4 0

3 years ago

A bean plant grows at a constant rate for month. After 10 days, the plant is

IrinaVladis [17]

Answer:

D or y-25=2(x-10)

Step-by-step explanation:

If you graph all or the answers the only one that hits both points is D.

7 0

2 years ago

Please help thank you<3

Natali [406]

(To any other people, please correct me if I'm wrong) I believe that the answer would be at the rate of 24.4 miles per gallon

3 0

3 years ago

Given point P(-8,5) and point Q(-2,1), what is the slope of a line that passes through

olga2289 [7]

To find the slope of a line, use this formula:
m = (y2-y1)/(x2-x1) where m is the slope, and (x1, y1) and (x2, y2) are points.

If I plug points P and Q into the slope formula, we get:

(1-5)/(-2+8) = -4/6 = -2/3

The slope is -2/3

7 0

2 years ago