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AlexFokin [52]
3 years ago
6

-6.2r - 4.6 -2.9r + 8.5 simplify the expression by combining like terms. PLZ HELP ASAP

Mathematics
1 answer:
Liono4ka [1.6K]3 years ago
3 0

Answer:

-9.1r + 3.9

Step-by-step explanation:

-6.2r - 4.6 -2.9r + 8.5

-6.2r and -2.9r are alike, so we combine.

-6.2r + -2.9r = -9.1r

-4.6 and 8.5 are alike, so we combine.

-4.6 + 8.5 = 3.9

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I. think it is12, 6, 2, 1

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Hernando and Rachel are factoring 2mp-6p+27-9m. Is either of them correct? Explain your reasoning,
vichka [17]

Answer:

See Explanation

Step-by-step explanation:

The question is incomplete, as Hernando and Rachel's solution are not provided. So, I will just solve the question directly.

Given

2mp-6p+27-9m

Required

Factor

2mp-6p+27-9m

Group into 2

2mp-6p+27-9m = [2mp-6p]+[27-9m]

Factor each group

2mp-6p+27-9m = 2p[m-3]+9[3-m]

Rewrite 3 - m as -(m-3)

So, we have:

2mp-6p+27-9m = 2p[m-3]-9[m-3]

Factor out m - 3

2mp-6p+27-9m = [2p-9][m-3]

3 0
3 years ago
What is the sum of the arithmetic series: s10 = -20, d = 4, a1 =? ​
Otrada [13]
<h2>Step-by-step explanation:</h2><h3>\green\star Given</h3>

\blue\stars10 = -20

\blue\starn = 10

\blue\star an = -20

\green\star solution

\green\stars10 = n\2 [a+(n-1)d]

\green\star-20 = 10a2[a+(10-1)4]

\green\star-4 = a +36

\green\stara1 = -40

\small\boxed{a = -40}

Hope it helps.

Hope it helps

8 0
3 years ago
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Answer:0 = 3x - 21

Step-by-step explanation:

From this given function we can take an  

x

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i.e  

x

2

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=

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x

−

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)

As we know that the product of two numbers is zero,when either one of them is zero

then in the above expression that we just factorised

the function can be zero when either  

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or when  

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0

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0

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when  

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=

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Finally, our prize of all that math, the zeroes of the function are  

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