2 years ago

7 times a number is 8 less than the square of that number. Find the negative solution.

Mathematics

1 answer:

charle [14.2K]2 years ago

7 0

Answer:

-1

Step-by-step explanation:

The required relation is ...

7n = n^2 -8

0 = n^2 -7n -8 . . . . put in standard form

0 = (n -8)(n +1) . . . . factor

Solutions are n=8 and n=-1.

The negative solution is -1.

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Jing participates in a trivia contest. He completes each question in 1/2 minute.

jolli1 [7]

Answer:

300 seconds

Step-by-step explanation:

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Second, you multiply 30 by 10 because he answered 10 questions.

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3 years ago

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Answer:

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2 years ago

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Answer:

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Step-by-step explanation:

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2 years ago

The volume of water in a tank is modeled by the function y = 1.15x3 – 0.1x2 + 2 where x is the number of minutes after the fauce

Thepotemich [5.8K]

Given:

The volume of water in a tank is modeled by the function

$y=1.15x^3-0.1x^2+2$

where, x is the number of minutes after the faucet filling the tank is turned on.

To find:

The y-intercept and what does it represent in this context?

Solution:

We have,

$y=1.15x^3-0.1x^2+2$

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