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4 years ago

HELP please I don’t get number 3 help would be appreciated:)

Mathematics

1 answer:

Ksenya-84 [330]4 years ago

4 0

Option A., Option C. and Option D.

7^-1 * 7^-1 = 1/49

7^-5 * 7^3 is 7^-2, which is 1/49.

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Which of the following statements are equivalent to the statement

Georgia [21]

Answer:

(D) and nice work with me in both of this ok meaning made by my lines

7 0

3 years ago

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

2.88888 as a fraction

joja [24]

Yes it has a fraction on 2.88888/1 <span> = 28.8888/10 = 288.888/100 = 2888.88/1000 = 28888.8/10000 = 288888/100000</span>

8 0

3 years ago

I have the area of a circle but how do i find it’s radius

Vilka [71]

Answer:

The radius of the circle is half its diameter. It's the length from the center point straight out to the edge.

8 0

3 years ago

Help please (ty to the people who know this) :)

notsponge [240]

Answer:

C) $3c-5d$

Step-by-step explanation:

$-c+5d+7c-11d+d-3c$

Group the similar terms together:

$-c+7c-3c+5d-11d+d$

Add/subtract the "c" variables:

$3c+5d-11d+d$

Add/subtract the "d" variables:

$3c-5d$

4 0

3 years ago

Read 2 more answers