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3 years ago

There is a negative correlation between the number of year in college and earnings.

1 answer:

4 0

You present a statement but do not explain what the goal is here.

My reaction to your statement is that it is false. It'd make far more sense to state that earnings are positively correlated to the number of years of college that a student has completed.

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Solve the equation –(–7y - 24)

Rus_ich [418]

-7y+24 is the answer

8 0

3 years ago

Write the tangent of ∠T as a fraction

Naddik [55]

Answer:

$\tan \angle T = \dfrac{SR}{TS} = \dfrac 43$

Step-by-step explanation:

3 0

3 years ago

You purchase a $220 airline ticket. You have a discount code to receive 10% off. There is a 10.5% service charge added to the to

weeeeeb [17]

Answer should be $174.91? if that isnt an option tell me and i will regroup

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3 years ago

Prove that for any natural n the number 3^(n+4)−3^n is divisible by 16.

gtnhenbr [62]

Answer:

Proved (See Explanation)

Step-by-step explanation:

Show that 3ⁿ⁺⁴ - 3ⁿ is divisible by 16.

This is done as follows

$\frac{3^{n+4} - 3^n}{16}$

From laws of indices;

aᵐ⁺ⁿ = aᵐ * aⁿ.

So, 3ⁿ⁺⁴ can be written as 3ⁿ * 3⁴.

$\frac{3^{n+4} - 3^n}{16}$ becomes

$\frac{3^n * 3^4 - 3^n}{16}$

Factorize

$\frac{3^n(3^4 - 1)}{16}$

$\frac{3^n(81 - 1)}{16}$

$\frac{3^n(80)}{16}$

3ⁿ * 5

5(3ⁿ)

<em>The expression can not be further simplified.</em>

<em>However, we can conclude that when 3ⁿ⁺⁴ - 3ⁿ is divisible by 16, because 5(3ⁿ) is a natural whole number as long as n is a natural whole number.</em>

3 0

3 years ago

Tina left for school at 8:35 a.m. and she got back home at 3:45 p.m. How long was

a_sh-v [17]

Answer:

430 minutes or 7 hours and 10 minutes

Step-by-step explanation:

From 8:35 am to 9 am is 25 minutes. There are 60 minutes in an hour and 9 am to 3 pm is 6 hours. 3:00 to 3:45 pm is an additional 45 minutes.

60 minutes x 6 hours = 360 minutes

360 + 25 + 45 = 430 minutes

3 0

3 years ago

Read 2 more answers