Can someone help me please

Mathematics

1 answer:

Novay_Z [31]3 years ago

6 0

Answer:

B. x = -5 +/- √30.

Step-by-step explanation:

2x^2 + 20x = 10

2(x^2 + 10x) = 10

2[ (x + 5)^2 - 25 ] =10

2(x + 5)^2 - 50 = 10

2(x + 5)^2 = 60

(x + 5)^2 = 30

x + 5 = +/- √30

x = -5 +/- √30.

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Lola rode her bike for 7/10 of an hour on Saturday and 3/5 of an hour on sunday. How much longer did she rider her bike on Satur

victus00 [196]

Answer:

1/10 of an hour.

Step-by-step explanation:

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5 0

3 years ago

An item originally costs $10

NikAS [45]

Here is your answer mate

EXPLANATION
Original cost is $10
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So original cost *70/100
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=$3

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Hope it helps

Pls——-mark——-as——-brainliesT

4 0

3 years ago

Through -2, 3), whone

horrorfan [7]

I don’t really know what you talking about but if you mean -2-3 it would be -5

6 0

3 years ago

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earnstyle [38]

Given:

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