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svp [43]
4 years ago
9

Simplify the following 3x2 + 7x - 5x2

Mathematics
1 answer:
9966 [12]4 years ago
8 0

Answer:

-2x^2+7x or x(-2x+7)

Step-by-step explanation:

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Write as a single power of 6<br> (6^5)^4
babunello [35]

Answer:

6^20

Step-by-step explanation:

When two indices are in brackets, you just have to multiply them.

3 0
3 years ago
Tery po
prisoha [69]

Answer:

150.72 units³

Step-by-step explanation:

volume = πr²h

= 3.14×4²×3

= 150.72

5 0
4 years ago
PLEASE PLEASE PLEASE HELP<br> FAST<br> (The last answer choice is: <br> [-1 4<br> 5 -7 ]
mote1985 [20]
Yes your answer is correct 
Just plug in A - 2B + C

5 - 2(4) + 2 = -1
2 - 3(2) + 8 = 4
3 - 2(-1) + 0 = 5
0 - 2(6) + 5 = -5

so
[-1     4]
[5     -7]
6 0
4 years ago
Of the 800 participants in a marathon, 120 are running to raise money for a cause. How many participants out of 100 are running
artcher [175]

Answer:

15 % are running for a cause.

Step-by-step explanation:

120 out of 800 are running for a cause.

So out of 100,  120 / 8

= 15 are running for a cause.

15 out of a 100 = 15%.

8 0
3 years ago
Read 2 more answers
Books: Josephine has seven chemistry books, three history books, and six statistics books. She wants to choose one book of each
Jobisdone [24]

Answer:

Step-by-step explanation:

we have totally 7+3+6=16 books.

let us choose one book from the all these books;

by using permutation formula we will get the answer

P(n,r)=\frac{(n)!}{(n-r)!} \\

P(7,1)=\frac{(7)!}{(7-1)!} = 7\\\\\ P(3,1)=\frac{(3)!}{(3-1)!} = 3\\\\ P(6,1)=\frac{(6)!}{(6-1)!} = 6\\\\

all these process are related to each other so we should multiply them

7*3*6=126

4 0
3 years ago
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