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Ierofanga [76]
3 years ago
7

(8b2+6b-1) (8b2-8b+7)

Mathematics
1 answer:
suter [353]3 years ago
6 0
<span>=(<span><span><span>8<span>b2</span></span>+<span>6b</span></span>+<span>−1</span></span>)</span><span>(<span><span><span>8<span>b2</span></span>+<span>−<span>8b</span></span></span>+7</span><span>)
</span></span>=<span>(8b2)(8b2)+(8b2)(−8b)+(8b2)(7)+(6b)(8b2)+(6b)(−8b)+(6b)(7)+(−1)(8b2)+(−1)(−8b)+(−1)(7)
</span>=<span>64b4−64b3+56b2+48b3−48b2+42b−8b2+8b−7</span>
Answer:
=<span>64b4−16b3+50b−7</span>
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olga_2 [115]

Answer:

3.50 +3.25 = 6.75

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6 0
2 years ago
What is the hypothesis of a triangle with a base of 11cm and height of 9cm
natima [27]

<u>Answer:</u>

<h2>14.21 cm</h2>

<u>Explanation:</u>

you mean the hypotenuse* lol

the hypotenuse = √(11²+9²)

the hypotenuse = √(121+81)

the hypotenuse = √(202)

the hypotenuse ≈ 14.21 cm

3 0
2 years ago
What is the solution of the proportion? 6/a = 18/27
Marta_Voda [28]

Answer:

a=9

Step-by-step explanation:

To solve this proportion, we have to get the variable, a, by itself.

First, cross multiply.

6/a=18/27

Multiply the denominator of the first fraction by the numerator of the second, and the numerator of the second by the denominator of the first.

a*18=6*27

18a=162

Now, 18 and a are being multiplied. In order to get a by itself, perform the opposite of what is being done. They are being multiplied, so the opposite would be division. Divide both sides by 18.

18a/18=162/18

a=162/18

a=9

So, the proportion, with 9 substituted in for a, will be:

6/9=18/27

6 0
3 years ago
Read 2 more answers
A cable installer charges $40.00 per hour plus a $60.00 service charge. Your father's firm hires him to hook up his company's in
balandron [24]
Set up the equation ... 60 + 40X = total charges... where X is the number of hours (8.5)

60 + 40(8.5) = ?
60 + 340 = ?
400 = total charges
7 0
2 years ago
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Write a subtraction sentence using integers.than,write the equivalent addition sentence and explain how to find the sum.please h
nata0808 [166]

Answer:

First option: 10 - (1) = 9

Second option: 10 - 5 + 4 = 5 + 4 = 9

Step-by-step explanation:

(10 -5) -4 = 5 - 4 = 1

Equivalent equation: 10 - 5 - 4 = 1

10 - (5-4) = there would be 2 ways to do this, you can either solve the equation in the bracket first or break it out. Because the sign before the bracket is minus so when you break it out, the minus sign in the bracket would become -- or equal to +

First option: 10 - (1) = 9

Second option: 10 - 5 + 4 = 5 + 4 = 9

Hope this help you:3

6 0
3 years ago
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