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givi [52]
3 years ago
11

Is it true that the sum of products is always 1.?

Mathematics
2 answers:
Alisiya [41]3 years ago
5 0

Answer:

yes

Step-by-step explanation:

elixir [45]3 years ago
4 0

Answer:

trueeeeeeee

Step-by-step explanation:

hope this helps

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Martha buys a surfboard that cost $405 for 40% off. How much money does she save?
alukav5142 [94]

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$162

Step-by-step explanation:

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3 years ago
Alexia ran three laps around her neighborhood. Each lap is 1 and StartFraction 3 over 8 EndFraction miles. Which is the best est
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Answer:

4 1/2

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Convert y =(x+1)(x-9) to vertex form
IgorC [24]

Answer:

y = (x - 4)² - 25

Step-by-step explanation:

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where (h, k) are the coordinates of the vertex and a is a multiplier

To obtain this form use the method of completing the square.

Given

y = (x + 1)(x - 9) ← expand factors using FOIL, thus

y = x² - 8x - 9

To complete the square

add/subtract ( half the coefficient of the x- term )² to x² - 8x

y = x² + 2(- 4)x + 16 - 16 - 9

  = (x - 4)² - 25 ← in vertex form

5 0
3 years ago
Sofia's poster is 0.75 meter long. Rafael's poster is 0.35 meter less than 1 meter long. Which expression shows the difference i
Nady [450]
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5 0
3 years ago
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