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Alona [7]
3 years ago
15

For the expression, combine like terms and write an equivalent expression with fewer terms 2 (5 + 2x ) + 7 + 4x

Mathematics
2 answers:
Alja [10]3 years ago
6 0

Answer:

17x+8x

Step-by-step explanation:

2(5+2x) + 7 + 4x

solve for the parenthesis by multiplying 2x5 and 2 x 2x

10+4x+7+4x

add like terms (the 4x and 4x and the 10 +7)

<h2>17+8x</h2>

Olin [163]3 years ago
5 0

Answer:

8x+17

Step-by-step explanation:

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How do I solve this using the substitution method for finding anti derivatives?
rewona [7]
A bit blurry, but if I'm making it out correctly, that's

\displaystyle\int t\sqrt{(t^2-9)^3}\,\mathrm dt=\int t(t^2-9)^{3/2}\,\mathrm dt

Set u=t^2-9. Then \mathrm du=2t\,\mathrm dt, or t\,\mathrm dt=\dfrac{\mathrm du}2. The integral is then equivalent to

\displaystyle u^{3/2}\dfrac{\mathrm du}2=\frac12\int u^{3/2}\,\mathrm du
=\dfrac12\dfrac{u^{5/2}}{\frac52}+C
=\dfrac12\times\dfrac25u^{5/2}+C
=\dfrac15u^{5/2}+C
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6 0
3 years ago
This also 7th fgrade homework!!
harkovskaia [24]

Answer:

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5:4

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15:12

20:16

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In other words, the first line (5:4) is the base ratio. The second line multiplies the original values by 2, the third line by 3, the fourth line by 4, and the fifth line by 5.

6 0
4 years ago
You need 2 cups of orange juice to make 3 quarts of punch. how much cups of orange juice do you need to make 3 gallons of punch?
AleksAgata [21]
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7 0
3 years ago
The quotient of 20 and the sum of -2 and -8. A numerical expression for this phrase is?
Lynna [10]

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Step-by-step explanation:

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4 years ago
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Fudgin [204]

Answer:

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Step-by-step explanation:

Suppose there are 2n+1 students in the class. If n+1 of them score 91, and n of them score the high score h, for the average to be 95, we must have ...

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The high score must be greater than 99. The high score must be 100.

8 0
3 years ago
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