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topjm [15]
3 years ago
13

Simplify: (−7a − 10c) − (−11a + 20c) − (−24a − 11c)

Mathematics
1 answer:
Elenna [48]3 years ago
7 0
D Would be the correct answer.
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1. Choose the correct simplification of the expression −5x2(4x − 6x2 − 3).
nlexa [21]
1) <span>30x4 − 20x3 + 15x2

This is the answer to 1. Don't forget to rearrange the terms in ascending order. That can trip people up. 

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6 0
3 years ago
A number line going from 0 to 1. StartFraction 5 Over 6 EndFraction is labeled on the line. Luke has a board 5 6 of a yard long.
Scorpion4ik [409]

Answer:

1/6 <3

Step-by-step explanation:

5/6 divided by 5

6 0
2 years ago
In an arithmetic sequence {an}, if a1 = 5 and d = 3, find a72. A) 216 B) 218 C) 221 D) 223
Phoenix [80]

The arithmetic sequence with the given condition is determined recursively by

\begin{cases}a_1=5\\a_n=a_{n-1}+3&\text{for }n>1\end{cases}

So we have

a_2=a_1+3

a_3=a_2+3=a_1+3(2)

a_4=a_3+3=a_1+3(3)

and so on with the general pattern

a_n=a_1+3(n-1)

This means the 72nd term in the sequence is

a_{72}=a_1+3(72-1)=5+3(71)=218

so the answer is B.

6 0
3 years ago
A clothing store is having a sale on T-shirts. The first T-shirt you buy costs $7, and every additional shirt costs
asambeis [7]

Answer:

Is an arithmetic sequence

Step-by-step explanation:

This is an arithmetic sequence, because it is a sequence of numbers in which the common difference between consecutive terms is 5

4 0
3 years ago
Read 2 more answers
If f(x) = [x] - 5, what is f(8.6)?
MA_775_DIABLO [31]

Answer:

The answer is 4.

8 0
3 years ago
Read 2 more answers
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