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iren [92.7K]
2 years ago
11

What is the minimum and maximum of f(x)=-10x^3+6x-2

Mathematics
1 answer:
const2013 [10]2 years ago
5 0

Answer:

Minimum: (\frac{\sqrt{5} }{5},-2+\frac{4\sqrt{5}  }{5})

Maximum: (-\frac{\sqrt{5} }{5} ,-2-\frac{4\sqrt{5} }{5} )

Step-by-step explanation:

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Write the expression for the following the product of five and two ,added to seven. PLS HELP ME
netineya [11]

Answer:

5 times 2 + 7

Step-by-step explanation:

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Evaluate the expression (6 + 9 ÷ 3) × 7.
Katarina [22]

Answer:

63

Step-by-step explanation:

(6+9÷3)×7

division is always first

(6+3)×7

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63

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Billy makes $5 a week in allowance plus $4 for each lawn that he mows.
Ad libitum [116K]

Answer:

$15 < $4n + $5

Step-by-step explanation:

We know that Billy needs to make more than $15 between his allowance and the lawns that he mows. This means our inequality should include $15<. Also, since Billy will make $4 per lawn, that means we need to multiply $4 by the number of lawns he needs to mow, n: $4n. So far we have the following: $15<$4n. Next, we know that he makes $5 each week, on top of what he makes mowing each law. This means we need to add the $5 to the $4n. When we put all of these pieces together, we will get the following inequality: $15<$4n+$5

7 0
3 years ago
An electrician charges a flat service fee to accept a job and an additional hourly rate to complete the job. The amount an elect
Colt1911 [192]

The interpretation of the slope in the context of the problem is: For every hour the electrician works, her pay will increase $28.

<h3>How to Interpret the Slope of a Function?</h3>

The slope of any function is the unit rate or average rate of change of the given function for that situation.

Given the function, E(x) = 130 + 28x, where:

E(x) is the amount an electrician charges per job

130 is the flat rate service which is the starting value or y-intercept

28 is the unit rate or slope, which is the fee charged per hour by the electrician to complete a job.

Thus, the interpretation of the slope in the context of the problem is: For every hour the electrician works, her pay will increase $28.

Learn more about slope on:

brainly.com/question/24502219

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2 years ago
What’s the constant 15-8y?
IgorC [24]

Answer:

15

Step-by-step explanation:

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3 years ago
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