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3 years ago

-7x^2+10=185 how to solve

Mathematics

1 answer:

bonufazy [111]3 years ago

6 0

Answer:

-7x²=185-10

-7x²=175

x²=-25

x=±√-25

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$3.50? Is that the answer I don’t know :3

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3 years ago

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Select the correct answer.

oksano4ka [1.4K]

Answer: $\dfrac{1}{3}$

Step-by-step explanation:

Favorable outcomes (sum is a multiple of 3): (1,2) , (1, 5), (1,8), (2,1) , (2,4), (2,7) , (3, 3), (3, 6), (4, 2), (4, 5) , (4, 8), (5,1), (5, 4), (5, 7), (6,3), (6, 6).

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3 years ago

34.

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Answer:

The lateral surface area of the triangular prism is 379.5sq units

Step-by-step explanation:

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The height of the lighthouse is 44 feet.

<u>Step-by-step explanation:</u>

You are given more information than you need.

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Base = 90 feet
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The angle of elevation from the boat to the top of the lighthouse is 26 degrees.

<u>Using one side length and the angle only: </u>

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tan = height / base

tan[26º] = h ⁄ 90

h = 90 × tan[26º]

h = 43.9 ft

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