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4 years ago

Please I need help don't understand this problem.

1 answer:

5 0

We need to find the absolute value of these numbers to see which one is closer to the surface of the ocean. The surface of the ocean is at 0.

Trina : | - 85.5 | = 85.5 meters from 0
Jessie : | 87.9 | = 87.9 meters from 0

so Trina is closer to 0 then Jessie is. <==
The reason we took the absolute value of these numbers, is because that is what the absolute value does...it tells us how many spaces away from 0 it is.

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What should be done to both sides of the equation in order to solve y - 4.5 = 12.2?

maw [93]

Y - 4.5 = 12.2

your solving for y which means your trying to get rid of 4.5 so that y can equal something. The opposite of -4.5 would be +4.5, so you would add 4.5 to both sides to get

y = 16.7

So your answer would be

A. Add 4.5

and also dont' say your stupid because all you need is a little explanation and you'll get it, its very easy you just need to take the time to practice :-)

6 0

3 years ago

1. What is the principal which would amount to $6 900 in 3 years at 5%

Dmitry [639]

Answer:

umnim not sure if will be back for that one

8 0

3 years ago

Convert 5 square root of a into exponential form?

stich3 [128]

Answer:

The answer is: " $5a^\frac{1}{2}$ " .

_____________________________________________

Step-by-step explanation:

______________________________________________

We are asked to convert "5 square root of a" ; into "exponential form".

Note that "5 square root of a" ;

or; " 5 root a " ;

means: " 5 times the {square root of the variable, "a" };

or : " 5 multiplied by the {square root of the variable, "a" }.

_______________________________________________

This can be written as: " $5\sqrt{a}$ " .

_______________________________________________

Note the following property of exponents:

$\sqrt[n]{a^m} = (\sqrt[n]{a})^m = a^m^n$ .

_____________________________________________

So; to write: " √a " ; as an exponent :

______________________________________________

Note:

" $\sqrt{a} = \sqrt[2]{a} = \sqrt[2]{a^1} = (\sqrt[2]{a})^1 = a^\frac{1}{2}$ " .

_______________________________________________

So:

" $\sqrt{a} = a^\frac{1}{2}$ " ;

_______________________________________________

And:

________________________________________________

" $5\sqrt{a} = 5a^\frac{1}{2}$ " .

________________________________________________

→ The answer is: " $5a^\frac{1}{2}$ " .

________________________________________________

Hope this helps!

Best wishes in your academic endeavors

— and within the "Brainly" community!

________________________________________________

6 0

3 years ago

Find the unknown number 5/12+()=1/2

xenn [34]

Hello from MrBillDoesMath!

Answer: 1/12

Discussion:

We solve 5/12 + x = 1/2 for x. Begin by subtracting 5/12 from each side

5/12 - 5/12 + x = 1/2 - 5/12

0 +x = 6/12 - 5/12 (as 1/2 = 6/12)

So x = 1/12

Regards, MrB

8 0

3 years ago

Which fraction equals 0.5? A.1/8 B.4/8 C.4/4 D.4/10 Plz Help!!!!!!!

faltersainse [42]

Its B because 4 is half of 8

5 0

3 years ago

Read 2 more answers