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Alex
3 years ago
5

Which is equivalent to the expression 8x(3x+7) A. 24x+15 B. 24x shift6 2+56 C.24x shift6x +56x D. 24x shift6 +15x

Mathematics
1 answer:
ziro4ka [17]3 years ago
5 0

Answer:

8x(3x + 7) = 24x^2 + 56x

Step-by-step explanation:

Given

8x(3x + 7)

Required

An equivalent expression

We have:

8x(3x + 7)

Apply distributive property

8x(3x + 7) = 8x *3x + 8x * 7

8x(3x + 7) = 24x^2 + 56x

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Please help me find out what the question marks are
quester [9]
Question a

g(x) times \sqrt{x-5}=\sqrt{x^2-5}
divide both sides by √(x-5)
g(x)=\frac{\sqrt{x^2-5}}{\sqrt{x-5}}
g(x)=\frac{(\sqrt{x-5})(\sqrt{x^2-5})}{x-5}
g(x)=\frac{\sqrt{x^3-5x^2-5x+25}}{x-5}


question b
g(x) \space\ times \space\ 1+\frac{1}{x}=x
divide both sides by 1+1/x
g(x)=\frac{x}{1+\frac{1}{x}}
times by x/x
g(x)=\frac{x^2}{x+1}


question c
\frac{1}{x} \space\ times \space\ f(x)=x
times both sides by x
f(x)=x^2


question d
the (f*g)(x) collumn seems to have a domain of only x is greater than or equal to 0?
so maybe we squared the whole thing, ya
wait
ah, ya
basically
|x|=(\sqrt{x})^2=(\sqrt{x})(\sqrt{x})
so f(x)=√x


a. g(x)=\frac{\sqrt{x^3-5x^2-5x+25}}{x-5}
b. g(x)=\frac{x^2}{x+1}
c.f(x)=x^2
d. f(x)=\sqrt{x}
3 0
4 years ago
Read 2 more answers
Write the word form for 0.000636
olya-2409 [2.1K]
Six hundred and thirty six millionths
6 0
4 years ago
Can someone help me pls
prisoha [69]

Answer:

60 degrees

Step-by-step explanation:

set up like 240-120

240-120=120

120 divided by 2 equals 60

therefor, the angle is 60 degrees

3 0
3 years ago
Seth is planning to invest $20,000 of his money. He is investing it in two banks. Seth invested 7,000 in Bank A, which gives an
Maru [420]
In bank A, after one year this would be the amount in the bank: 

<span>$7,000 x 1.04 = $7280. </span>

<span>He has gained %280 interest. This means you'd need $1000 interest from bank B. </span>
<span>$13,000 would go into bank B... </span>
<span>If Seth's interest rate was 8.69% you could calculate the interest as: </span>

<span>(13000 x 1.0869) - 13,000 = $1129.70 which is a little much (but who'd complain). </span>

<span>This means the interest is lower than this, if it was 7.69% you could just substitute it into the same equation to find that he would get $999.70 interest. This isn't exactly $1000 but it is the most accurate answer to the nearest $100 :) He would then get $1279.70 interest altogether.. just 30 cents short</span>
7 0
4 years ago
PLEASE HELP ME
Romashka [77]
"The perimeter is the sum of the length of the sides. A square has four equal sides. The perimeter of a square is four times the side length." Is the answer
3 0
3 years ago
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