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4 years ago

Can you please help me with this question with the steps? 8a^3 -2a^2+ 12a-3

1 answer:

6 0

I'm assuming you want to simplify the expression since it's not equal to anything.. you can't solve for "a" unless it's equal to something.

factor

8a³ - 2a²+ 12a - 3

2a²(4a - 1) + 3(4a -1)

(4a - 1) is a like term that can be combined further.

(2a² + 3)(4a - 1)

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What is the answer to −(3x−9)

frutty [35]

Answer:

-3x + 9

Explanation:

Because these two integers that is - and - is said to be added and write the sign of of greater or bigger number.

3 0

2 years ago

5√48-4√27-2√108+√147

irakobra [83]

Answer:

$3\sqrt{3}$

Step-by-step explanation:

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3 years ago

Stan worked 4 years less than Marco.This year Stan has worked 29 years.If b is how long Marco worked, the equation b - 4 = 29 re

MA_775_DIABLO [31]

Answer:

Add 4 on both sides.

In the equation there is a -4.

If -4+4=0, that is how you would get rid of the -4.

But, you need to add 4 to 29 to really get rid of the -4.

So, 29+4 is 33.

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3 years ago

<img src="https://tex.z-dn.net/?f=13%20%5Ctimes%2011%20%3D%3F" id="TexFormula1" title="13 \times 11 =?" alt="13 \times 11 =?" al

gizmo_the_mogwai [7]

13 multiplied by 11 is 143

7 0

3 years ago

A sailor is 30m above the water in the crow's nest on a sailboat. The sailor encounters an orca surface at an angle of depressio

Natali [406]

Given :

A sailor is 30 m above the water in the crow's nest on a sailboat.

The sailor encounters an orca surface at an angle of depression of 15 degrees.

The crows nest is 20 m horizontally from the bow (front) of the boat.

To Find :

How far in front of the boat is the orca.

Solution :

Let, distance of boat front from the crow's nest is x.

So,

$\dfrac{30}{20+x}=tan \ 15^{\circ}\\\\x=\dfrac{30}{tan \ 15^{\circ}}-20\\\\x=111.94-20\\\\x=91.94\ m$

Hence, this is the required solution.

4 0

3 years ago