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Ivanshal [37]
3 years ago
9

What are the solutions to x2 + 8x + 7 = 0?

Mathematics
1 answer:
Lelechka [254]3 years ago
6 0

Answer:

B

Step-by-step explanation:

x² + 8x + 7 = 0

x²+x+7x+7=0

x(x+1)+7(x+1)=0

(x+1)(x+7)=0

Either x=-1or x=-7.

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Step-by-step explanation:

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Four adults and 5 children go to see a movie and buy $15 worth of concessions. The total cost of their trip is $71. If each chil
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Step-by-step explanation:

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3 years ago
Find the value of JN in the figure. ​
yarga [219]

Answer:

JN = 32

Step-by-step explanation:

Δ JMN and Δ JKL are similar ( AA postulate )

then the ratios of corresponding sides are in proportion, that is

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\frac{8}{11} = \frac{JN}{JN+12} ( cross- multiply )

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3 JN = 96 ( divide both sides by 3 )

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7 0
2 years ago
The base of a pyramid is a square with side length of 5 cm and a slant height of equilateral base of the pyramid is 6 cm what is
BaLLatris [955]

Answer:

85 cm²

Step-by-step explanation:

The formula to calculate the surface area of a square based pyramid =

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Therefore, the surface area of the pyramid is 85 cm²

5 0
2 years ago
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