Can anyone help me? I don't understand this. can u also give the calculations please??

Answers

Answer 1

Answer: Is there another side to it?

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Which is 8.43 written in expanded form

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That would be 8 + 0.4 + 0.03

8+0.4+0.03 i believe i may have gotten that wrong

Evaluate the question -2/3 - 1/6

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-5/6. You have to multiply two to the top and bottom of the first fraction to get the same denominator as the second fraction.

- 5/6 is what I got but I am no math expert...

Hope this helps :)

The horsepower , H(s), required for a racecar to overcome wind resistance is given by the function : H(s) = 0.003s^2+0.07s-0.027 , where (s) is the speed of the car in miles per hours. What is the average rate of change in horsepower per unit speed if the race car increases in speed from 80 mph to 100 mph . A 1.64 B. 0.61 C. 12.2 D. 20.0

Answers

The average rate of change in horsepower per unit speed if the race car increases in speed from 80 mph to 100 mph is 0.61

The function of the horsepower is given as:

$\mathbf{H(s) = 0.003s^2 + 0.07s - 0.027}$

The average rate of change is calculated using:

$\mathbf{A(s) =(H(b) - H(a))/(b - a)}$

Substitute 80 and 100 for a and b, respectively

$\mathbf{A(s) =(H(100) - H(80))/(100 - 80)}$

$\mathbf{A(s) =(H(100) - H(80))/(20)}$

Calculate H(100) and H(80)

$\mathbf{H(80) =0.003 * 80^2 + 0.07 * 80 - 0.027 = 24.773}$

$\mathbf{H(100) =0.003 * 100^2 + 0.07 * 100 - 0.027 = 36.973}$

So, we have:

$\mathbf{A(s) =(H(100) - H(80))/(20)}$

$\mathbf{A(s) = (36.973 - 24.773)/(20)}$

$\mathbf{A(s) = (12.2)/(20)}$

$\mathbf{A(s) = 0.61}$

Hence, the average rate of change in horsepower per unit speed is 0.61

Read more about average rate of change at:

brainly.com/question/23715190

Average rate of change = [H(100) - H(80)] / (100 - 80)
H(100) = 0.003(100)^2 + 0.07(100) - 0.027 = 0.003(10000) + 0.07(100) - 0.027 = 30 + 7 - 0.027 = 36.973

H(80) = 0.003(80)^2 + 0.07(80) - 0.027 = 0.003(6400) + 0.07(80) - 0.027 = 19.2 + 5.6 - 0.027 = 24.773

Average rate of change = (36.973 - 24.773)/(100 - 80) = 12.2/20 = 0.61

Answer: B

What is the difference between 3/5 and 2/10

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The answer is 2/5. This is because if you simplify 2/10 it becomes 1/5. Then, you do 3/5 subtracted by 1/5 and that is how you get to 2/5.

If 6 is 30% of a value what is that value

Answers

I'm not sure if I'm right, but I believe that the answer is 18

1.8 is your answer♥☺

56980 rounded to the nearest hundreds

Answers

56,980 rounded to the nearest hundreds is 56,900.

To round the number 56,980 to the nearest hundreds, we need to look at the digit in the hundreds place, which is 9. The rule for rounding is to examine the digit to the right of the place you want to round to, in this case, the digit in the tens place. If that digit is 5 or greater, you round up; if it's less than 5, you round down.

In 56,980, the tens digit is 8, which is less than 5. Therefore, we don't need to round up. We simply drop the digits to the right of the hundreds place, which are the tens and ones digits. The hundreds digit (9) remains the same.

So, rounding 56,980 to the nearest hundreds gives us:

56,900

In this rounded number, the hundreds place (9) is unchanged, and the digits in the tens and ones places (8 and 0) have been dropped.

To understand it visually, think of 56,980 on a number line. When you round to the nearest hundreds, you're essentially finding the closest multiple of 100. In this case, 56,980 is closest to 57,000, which is why we round down to 56,900.

For more such questions on hundreds

brainly.com/question/29175907

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Answer:

57,000

Step-by-step explanation:

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