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RUDIKE [14]
3 years ago
12

F(x) = -3x2 – 20 Find f(-7) Evaluate the function Pls help

Mathematics
1 answer:
Mila [183]3 years ago
3 0
F(x)=-26
You substitute and evaluate
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HELP PLEASE!!!
yanalaym [24]

Answerpic


Step-by-step explanation:


8 0
3 years ago
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The rate of sales for a corporation t weeks from now is given by S(t)=59t+5 millions of dollars per week. Find the average sales
8090 [49]

Answer:

The average sales per week for the first 16 weeks is $477 million dollars per week.

Step-by-step explanation:

Here, you have to find the average value of a continuous function over an interval.

Suppose you have a function f(x) over an interval from a to b. The average of the function in this interval is given by:

\frac{1}{b-a}\int\limits^b_a {f(x)} \, dx

Solution:

In this problem, the function is given by:

S(t) = 59t + 5

The problem asks the average value for the first 16 weeks. It means that our interval goes from 0 to 16. So a = 0, b = 16.

The average value is given by the following integral:

A = \frac{1}{16}\int\limits^{16}_{0} {(59t + 5)} \, dt

A = \frac{59t^{2}}{32} + \frac{5t}{16}, 0 \leq t \leq 16

A =\frac{59*(16)^{2}}{32} + \frac{5*16}{16}

A = $477

The average sales per week for the first 16 weeks is $477 million dollars per week.

5 0
3 years ago
Which of the following is an rational number?
Mumz [18]
C. The square root of 144
7 0
3 years ago
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What is 3/4 divided by 7/12 as a fraction?
Yakvenalex [24]

Answer:

9/7

Step-by-step explanation:

Z4jshrsursursurwruwurwyrwruw4hwurw

7 0
1 year ago
Read 2 more answers
Which place is the better but
lawyer [7]

Answer:

Stop and Save

Step-by-step explanation:

Find the cost of one apple in each place.

<u>Quick Market</u>:

Divide the total cost with the amount of apples:

1.08/3 = 0.36

The cost for one apple in <em>quick market </em>is $0.36

<u>Stop and Save</u>:

Divide the total cost with the amount of apples:

1.10/5 = 0.22

The cost for one apple in <em>Stop and Save</em> is $0.22

-----------------------------------------------------------------------------------------

$0.22 < $0.36 ∴ <em>Stop and Save</em><em> </em>is cheaper than Quickmarket by $0.14, making Stop and Save your answer.

~

3 0
3 years ago
Read 2 more answers
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