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Mkey [24]
3 years ago
7

#4 please help! One question seen in pic

Mathematics
2 answers:
kiruha [24]3 years ago
7 0

Answer:

B. (x - 2)(x + 2)

Step-by-step explanation:

The answer is b. If you have (x + a)(x - a), the variables will cancel each other out. For example, if we take the answer (x - 2)(x + 2) and factor it out, we get:

x² - 2x + 2x - 4

Then it becomes just:

x² - 4 because the x to the power of one has been canceled. This proves his theory wrong.

vivado [14]3 years ago
6 0

Answer:

B

Step-by-step explanation:

I think I think I think I think

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How many orders of magnitude bigger is 23,000 than 56?
Daniel [21]

Orders of Magnitude are in terms of scientific notation.

23,000 written in scientific notation is 2.3 x 10^4, it's magnitude is 4 ( the number 10 is raised to)

56 in scientific notation would be 5.6 x 10^1, its magnitude is 1.

4 - 1 = 3

2300 is 3 order of magnitudes larger.

The answer is 3.

4 0
3 years ago
7h + 4 > 5 – 5h solve the inequality
loris [4]

Step-by-step explanation:

7h + 4 > 5 - 5h

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12h > 1

h > 1/12

5 0
3 years ago
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motikmotik
You need  to know the equation of motion for the particle.  
5 0
4 years ago
Find the percent of tip:
r-ruslan [8.4K]
The answer is 14%

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4 0
3 years ago
5b - 5 - 126 - 7<br> I need steps please and thank you
MA_775_DIABLO [31]

Answer:

5b - 138

Step-by-step explanation:

Alright let's break it down.

First, you can see that each constant (5,126,7) have negatives in front of them. SO you are going to subtract each one of them.

When subtracting negatives it's basically just adding them together. How to do it is simply adding:

5 + 126 + 7

Then you get 138.

BUT, it was negative numbers. So it's actually -138.

Then bring back the 5b and your answer is:

5b - 138

Mark brainliest if you can :D

6 0
3 years ago
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