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Hatshy [7]
3 years ago
11

Multiply: (x + 3)(x-4)

Mathematics
1 answer:
Ratling [72]3 years ago
5 0

Answer:

X^2-x-12

Step-by-step explanation:

FOIL

First, Outside, Inside, Last

First: X*X=X^2

Outside: x*-4=-4x

Inside: x*3=3x

Last:3*-4=-12

All together: X^2-4x+3x-12

Simplify: X^2-x-12

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nekit [7.7K]
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How to:

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200 + 72.9 = 272.9 cm^2
7 0
2 years ago
@ranga @Becki . A new car has a sticker price of $22,450, while the invoice price paid was $19,450. What is the percentage marku
densk [106]
To answer the problem given above, divide the difference of the prices by the original price and multiply the answer by 100%. This is,
                           ((22450 - 19450) / 19450) x 100% = 15.42%
Therefore, the percentage markup of the new car is approximately 15.42%.
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3 years ago
Which inequality is used to find the domain<br>​
Igoryamba
<h3>Answer: Choice D.  5x-5 \ge 0</h3>

This is because we want to avoid having negative numbers under the square root. So we make the radicand to be 0 or larger.

The +1 at the end doesn't affect the domain.

4 0
3 years ago
Need help with question a
SVEN [57.7K]

Answer:

1.8 cm

6.3 cm²

Step-by-step explanation:

AC⊥BC

BD=BC=x

  • (x+5)²+x²=7²
  • x²+10x+25+x²=49
  • 2x²+10x- 24=0
  • x²+5x-12=0
  • x=1.8

BC= 1.8 cm

Area of ABC= 1/2*1.8*7= 6.3 cm²

4 0
3 years ago
How do I find the sum of 3x8
kakasveta [241]
You add eight three times (8+8+8=24)
5 0
3 years ago
Read 2 more answers
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