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Morgarella [4.7K]
2 years ago
15

1. A car engine is 25% efficient. How much input energy produces 100 J of useful energy?

Mathematics
2 answers:
nadya68 [22]2 years ago
8 0

Answer:

400 J

Step-by-step explanation:

hram777 [196]2 years ago
7 0

Answer:

400 J

Step-by-step explanation:

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What is the average rate of change for the function f(x)=3(0.25)^x over the interval -2 ≤ x ≤ 0
diamong [38]
Answer:
-22.5


Explanation:
Use the average rate of change equation
f(b)-f(a) / b-a
f(b) = f(0) = 3(.25)^0 = 3
f(a) = f(-2) = 3(.25)^-2 = 48

(3-48)/ 0-(-2)
(-45) / 2
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8 0
3 years ago
What is the equation of a line, in point-slope form, that passes through (-8, 1) and has a slope of 5/6?
max2010maxim [7]

Answer:

y-1=\frac{5}{6}(x+8)

Step-by-step explanation:

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3. m is the slope

5 0
3 years ago
Is n=3 a solution?<br><br><br>-21 = <img src="https://tex.z-dn.net/?f=%5Cfrac%7B-63%7D%7Bn%7D" id="TexFormula1" title="\frac{-63
nadezda [96]

Yes. -63 / 3 = -21.

Please consider branliest! ^_^

7 0
3 years ago
Read 2 more answers
How do you do this plz help me (10 points)
cricket20 [7]

Answer:

Step-by-step explanation:

it easy tim will get 20 and sam will also get 20 so the ratio is 20;20 jope this helps you

5 0
4 years ago
In the measurement of 67.93 cm, which digit is estimated? click on the estimated digit
scoundrel [369]
When it comes to measurement, the most accurate estimate would be the whole number. A ruler has calibrated marks. It would be easy to locate 25. But when it is located between 25 to 26, you would have to estimate the decimal points. Generally, calibration marks are up to the tenths digit. For further digits, that would only an estimation. So, the estimated digit in this problem is 3 in the hundredths place.
8 0
3 years ago
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