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Alona [7]
3 years ago
13

Hello there!

Mathematics
1 answer:
jok3333 [9.3K]3 years ago
7 0

Answer:

4. dy/dx = -2

8. dy/dx = 1/2 x^(-3/2)

10/ dy/dr = 4 pi r^2

Step-by-step explanation:

4.  y = -2x+7

dy/dx = -2(1)

dy/dx = -2

8.  y = 4 - x^-1/2

 dy/dx =  - (-1/2x^ (-1/2-1)

 dy/dx = 1/2 x^(-3/2)

10.  y = 4/3 pi r^3

dy/dr = 4/3 pi  (3r^2)

dy/dr = 4 pi r^2

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Which unit price is the highest?
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Answer:

1.26

Step-by-step explanation:

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3 years ago
Taylor states that 2,800,000 in scientific notation is 2.8 x 10 -6 because the number has six places to the right of the 2. Is T
soldier1979 [14.2K]

Scientific Notation is the way of <u>writing a number or expressing them</u> in a <u>shorter or more compact way.</u>

No, <u>Taylor's resoning is incorrect</u> because  2,800,000 = 2.8  * 10^{6}

From the question, we are given:

2,800,000 .

2,800,000 in scientific notation is  2.8  * 10^{6}.  

The reason the power is not to the negative 6 is that we are moving from the right-hand side to the left-hand side 6 times.

Therefore, <u>Taylor's reasoning is incorrect. </u>

To learn more, visit the link below:

brainly.com/question/22241437

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2 years ago
Solve for x.<br> 3x - 3<br> 4x - 6<br> X =<br> = [?]
Lina20 [59]
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2 years ago
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A first number plus twice a second number is 13. Twice the first number plus the second totals 14. find the numbers​
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Answer:

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Step-by-step explanation:

first number = x

second number = y

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