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DedPeter [7]
3 years ago
14

What is the product of the polynomials below?

Mathematics
2 answers:
AysviL [449]3 years ago
8 0
Hi there! The answer is C.

(5 {x}^{2}  + 5x + 7)(8x + 6) =  \\ work \: out \: parenthesis \\  \\  40 {x}^{3}  + 30 {x}^{2}  + 40 {x}^{2}  + 30x + 56x + 42 =  \\ collect \: terms \\  \\ 40 {x}^{3}  + 70 {x}^{2}  + 86x + 42
drek231 [11]3 years ago
6 0
The answer is C

40x3 + 70x2 + 86x + 42
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Find three consecutive integers whose sum is -21. 2. find three consecutive odd integers whose sum is 144. 3. the sum of three c
fenix001 [56]
Easy way
-21÷3=-7 which is the exact center so
-6, -7, -8

Equation
x + (x+1) + (x+2) = -21
3x + 3 = -21
3x=-24
x=-8
x+1=-7
x+2=-6

2. Consecutive Odd Integers
X, X+2, X+4

X + (X+2) + (X+4) = 144
3X+6=144
3X=144-6=138
X = 138/3 = 46 .....There are no 3 odd Integers that can equal an even integer

3. 3 consecutive even number x, x+2, x+4

X + (X+2) + (X+4) = 48
3X+6=48
3X=48-6=42
X=42/3=14
14, 16, 18
7 0
3 years ago
Mom has 4 red buttons dad has three blue buttons and and baby has green buttons. How many buttons doed the famiky have
Vladimir [108]

The answer will depend how many buttons does the baby have. You just have to add all the buttons together, and that will be your answer.

So 4+3+green buttons =the answer

8 0
2 years ago
What 0.04 percent form is?
sergij07 [2.7K]
4%
This is because 1 = 100%
0.4 would equal 40%
So 0.04 is 4%
3 0
3 years ago
Ian owns a small business selling used books. He knows that in the last week 19
Softa [21]

Step-by-step explanation:

last week there were 19+30+77 = 126 customers.

19/126 = 1/14 paid cash.

30/126 = 5/21 paid by debit card.

77/126 = 11/18 paid by credit card.

next week he expects 1800 customers.

that is compared to 126 a factor of

1800/126 = 300/21 = 100/7

now we actually only need to apply the same factor to any part of the total sum to get their share in the new total sum.

it simply follows the rule

(a + b + c) × d = ad + bd + cd

so,

77 × 100/7 = 11 × 100 = 1100 customers are expected to pay per credit card.

5 0
2 years ago
Help with last math question!! <br> Will mark and star!! <br> ⚓ (&gt;‿◠)✌
muminat
The answer is either B or D
6 0
3 years ago
Read 2 more answers
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