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3 years ago

Find the product for the following expressions: (8c + 2)(5c-7)

Mathematics

2 answers:

Marianna [84]3 years ago

8 0

Answer:40c^2-46c -14

Step-by-step explanation:

(8c+2)*(5c-7)

8c*(5c-7)+2(5c-7)

40c^2-56c+10c-14

40c^2-46c-14

klio [65]3 years ago

3 0

<u>Answer:</u>

<u>Explanation:</u>

(8c + 2)(5c-7) = 40c²-56c+10c-14

(8c + 2)(5c-7) = 40c²-46c-14

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Hey there,

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xz_007 [3.2K]

Answer:

1) $n = 84$

2) $n = 78$

3) $n = 24$

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Step-by-step explanation:

To solve each proportion, we apply cross multiplication.

Question 1:

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Question 2:

$\frac{n}{52} = \frac{180}{120}$

$120n = 52*180$

Simplifying both sides by 20

$6n = 52*9$

Simplifying by 3

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Simplifying by 2

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Question 3:

$\frac{18}{n} = \frac{21}{28}$

$21n = 18*28$

Simplifying both sides by 7

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Simplifying both sides by 3

$n = 6*4 = 24$

Question 4:

$\frac{n}{4} = \frac{24}{6}$

$\frac{n}{4} = 4$

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Question 5:

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Step-by-step explanation:

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