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Ivan
3 years ago
15

Cooper earned $228.00 at his job when he worked for 10 hours. How much money did he earn each hour?

Mathematics
1 answer:
mote1985 [20]3 years ago
5 0

Answer:

Cooper made $22.80 per hour.

Step-by-step explanation:

Since Cooper made a total of $228.00 within 10 hours, the money he made each hour is equivalent to the rate of change. That means that in order to get the amount of money made in one hour, you must first turn the ten hours into one using division. Since you divided ten into one using division, you divide the $228.00 by ten using division.

228 divided by 10 is 22.8, therefore Cooper is making $22.80 per hour.

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Give an example of a function F(x) that is an antiderivative of f(x) = 9 cos(9x)+ 3x^2
liubo4ka [24]

We are integrating f(x) = 9cos(9x) + 3x²:    \int\ {9cos(9x)+3x^{2} } \, dx

a) Apply the sum rule

\int\9cos(9x)} \, dx +\int\ 3x^{2} } \, dx

b) Calculate each antiderivative

<u>First integral</u>

\int\ {9cos(9x)} \, dx

1. Take out the constant

9\int\ {cos(9x)} \, dx

2. Apply u-substitution, where u is 9x

9\int\ {cos(u)\frac{1}{9} }  du

3. Take out the constant (again)

9*\frac{1}{9} \int{cos(u)}  du

4. Take the common integral of cos, which is sin

9*\frac{1}{9}sin(u)}

5. Substitute the original function back in for u and simplify9*\frac{1}{9} sin(9x) = sin(9x)

6. Always remember to add an arbitrary constant, C, at the end

sin(9x) + C

<u>Second integral</u>

\int3x^{2} } \, dx

1. Take out the constant

3\int{x^{2} } \, dx

2. Apply the power rule, \int{x}^{a}  \, dx =\frac{x^{a+1} }{a+1}, where <em>a</em> is your exponent

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3. Add the arbitrary constant

x^{3}  + C

c) Add the integrals

sin(9x) + C + x³ + C = sin(9x) + x³ + C

Notice the two arbitrary constants.  Since we do not know what either constant is, we can combine them into one arbitrary constant.

<h3>Answer:</h3>

F(x) = sin(9x) + x³ + C

3 0
3 years ago
Read 2 more answers
Question 1.
tangare [24]

Answer:

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Step-by-step explanation:

Step 1

To find a, take the number and move a decimal place to the right one position.

Original Number: 803,000,000New Number: 8.03000000Step 2

Now, to find b, count how many places to the right of the decimal.

New Number:8.03000000Decimal Count:12345678

There are 8 places to the right of the decimal place.

Step 3

Building upon what we know above, we can now reconstruct the number into scientific notation.

Remember, the notation is: a x 10b

a = 8.03 (Please notice any zeroes on the end have been removed)

b = 8

Now the whole thing:

8.03 x 108

Step 4

Check your work:

108 = 100,000,000 x 8.03 = 803,000,000

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2 years ago
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Answer:

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30-8=22

22/2= 11

7 0
3 years ago
Montreal canadiens memorabilia is on sale for 40% off due to their disappointing season how much would a jersey that cost $80 be
hjlf
You mean 40% of 80?

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2 years ago
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The Kendal Company manufactures automobile engine parts. Running the manufacturing operations requires 12 watts (units of electr
bazaltina [42]
No parts are manufactures is when x=0 because it is run 0 hours

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24 watts are used on a day when no parts are manufactured
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