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erastova [34]
3 years ago
9

PLEASE HELP! I NEED THIS

Mathematics
1 answer:
FinnZ [79.3K]3 years ago
6 0

Answer:

x² + x - 30

Step-by-step explanation:

Given

(x - 5)(x + 6)

Each term in the second factor is multiplied by each term in the first factor, that is

x(x + 6) - 5(x + 6) ← distribute both parenthesis

x² + 6x - 5x - 30 ← collect like terms

= x² + x - 30

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Craig ran the first part of a race with an average speed of 8 miles per hour and biked the second part of a race with an average
lutik1710 [3]
Let the distance of the first part of the race be x, and that of the second part, 15 - x, then
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5x + 2(15 - x) = 40 x 1.125
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Therefore, the distance of the first part of the race is 5 miles and the time is 5/8 = 0.625 hours or 37.5 minutes
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3 years ago
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PLEASE HELP 30 POINTS!!
igor_vitrenko [27]

Answer:

the 1st one is right

Step-by-step explanation:

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