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Setler [38]
3 years ago
8

You begin factoring x2 + 8x – 20 into two binomials by writing (x )(x ). Which is a correct way to complete each factor?

Mathematics
2 answers:
satela [25.4K]3 years ago
6 0
<span>(x + 10)(x - 2) sorry if i am wrong</span>
AysviL [449]3 years ago
5 0
X^2 + 8x - 20 =
(x + 10)(x - 2)
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What is the arithmetic mean of the first million odd numbers
balandron [24]
It's 1,000,000: 

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To work out the area in m² of material required for a pair of curtains, a seamstress squares the height of the window in m and a
Kisachek [45]

Answer:

a. Area = 1.94m²

b. Area = (p² + 0.5)m²

c. Height = 1.5m

Step-by-step explanation:

Given

<em>Let H represents Height and A represents Area</em>

<em>From the first and second statements, we have that:</em>

<em></em>A = H^2 + 0.5<em></em>

<em></em>

<em>a. Calculating Area When Height = 1.2</em>

<em></em>A = H^2 + 0.5<em></em>

<em>Substitute 1.2 for H</em>

<em></em>A = 1.2^2 + 0.5<em></em>

<em></em>A = 1.44 + 0.5<em></em>

<em></em>A = 1.94<em></em>

<em></em>

Hence, the area is 1.94m²

<em></em>

<em>b. Calculating Area When Height = p</em>

<em></em>A = H^2 + 0.5<em></em>

<em>Substitute p for H</em>

<em></em>A = p^2 + 0.5<em></em>

<em></em>

Hence, the area is (p² + 0.5)m²

<em></em>

c. <em>Calculating Height When Area = 2.75m</em>²

<em></em>A = H^2 + 0.5<em></em>

<em>Substitute 2.75 for A</em>

<em></em>2.75 = H^2 + 0.5<em></em>

<em>Subtract 0.5 from both sides</em>

<em></em>2.75 - 0.5 = H^2 + 0.5 - 0.5<em></em>

<em></em>2.75 - 0.5 = H^2<em></em>

<em></em>2.25 = H^2<em></em>

<em></em>

<em>Take Square Root of both sides</em>

<em></em>\sqrt{2.25} = \sqrt{H^2}<em></em>

<em></em>\sqrt{2.25} = H<em></em>

<em></em>1.5 = H<em></em>

<em></em>H = 1.5<em></em>

<em></em>

Hence, the height is 1.5m

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Answer:

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