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loris [4]
3 years ago
15

(5x + 5 - 2x)(4 + 7x - 1)

Mathematics
1 answer:
Mars2501 [29]3 years ago
5 0

Answer: 21x^2 + 44x + 15

Step-by-step explanation:

<em>first, i used the distributive property.</em>

5x x (4 + 7x - 1) + 5 (4 + 7x - 1) - 2x x (4 + 7x - 1)

<em>then, i removed the parentheses. </em>

20x + 35x^2 - 5x + 20 + 35x - 5 - 8x - 14x^2 + 2x

<em>then, i collected the like terms.</em>

44x + 21x^2 + 15

<em>finally, i reordered the terms.</em>

21x^2 + 44x + 15

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LW = A
L(L - 3) = 18
L^2 - 3L - 18 = 0
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professor190 [17]

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Find the measures of the angles and arcs identified below​
harkovskaia [24]

Answer:

∠a = 42.5°

∠b = 87°

∠c = 174°

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∠f = 131°

Step-by-step explanation:

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4 0
3 years ago
76%
topjm [15]

Answer:

Mode = 7

Median = 6

Mean = 5.2

Range = 7

Step-by-step explanation:

Mode:

The most repeated number is 7 (thrice).

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First, arrange them in order.

1, 2, 3, 4, 5, 7, 7, 7, 8, 8

The two middle numbers are 5 and 7. Find their average.

(5 + 7)/2 = 6

Mean:

(3+7+2+4+7+5+7+1+8+8)/10 = 5.2

Range:

Largest number - smallest number

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Hope this helps!

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