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dsp73
3 years ago
7

Amy uses 40 N of force to push a lawn mower 20 meters. How much work does she do?

Mathematics
1 answer:
gulaghasi [49]3 years ago
3 0
Work = Force x Distance

40N x 20

Work= 600Nm (Newton Meters)
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Tim Worker is doing his budget. He discovers that the average electric bill for the year was $206.00 with a standard deviation o
ivanzaharov [21]

Answer:

  • -2.2
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<h3>Step-by-step explanation:</h3>

The z-value is computed from ...

... z = (x -µ)/σ

... z = (184 -206)/10 = -2.2 . . . . for $184

... z = (200 -206)/10 = -0.6 . . . . for $200

You can look up these values in a normal distribution table, or you can use an appropriate calculator to find the corresponding percentiles.

... -2.2 corresponds to the 1.390 percentile. (That amount of area is below -2.2 standard deviations from the mean.)

... -0.6 corresponds to the 27.425 percentile.

Subtracting the two percentages gives the percentage of expenses between $184 and $200. That number is 26.035% ≈ 26%.

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<em>Comment on the calculator display</em>

The difference that got cut off from the display in the attachment is ...

... 0.2603496703

The <em>normalcdf( )</em> function requires a lower limit. Using -8 standard deviations is effectively equivalent to -∞ for this purpose, as any lower number has no effect on the least-significant digits of the result.

7 0
3 years ago
Guys please help me with this serous question
12345 [234]

Answer:

Step-by-step explanation:

$1 times 5 equals $5

$30-$5= $25

$25 divide by each 5 friends equals $5. So your answer is $5

4 0
3 years ago
kate is making a recipe that calls for 1 2/3 cups of sugar. she wants to cut the recipe in half. how much sugar should kate use
denis-greek [22]

she should use 5 thirds of a cup

8 0
3 years ago
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agasfer [191]
X = 180 - 150 = 30°

z = 180 - 100 = 80°

y = 180 - 30 - 80 = 70°

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6 0
3 years ago
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One sphere has a radius of 3 inches and another sphere has a radius of 6 inches. The volume of the larger sphere is about how ma
NikAS [45]

Answer:

8

Step-by-step explanation:

First off, we need to recognize that the formula for the volume of a sphere is \frac{4}{3} \pi r^3.

Then, we can plug in our r values one at a time.

The volume for the sphere with a 6-inch radius is about 904.779.

The volume for the sphere with a 3-inch radius is about 113.097.

To find how much greater the larger sphere is, we simply create a ratio between the two numbers: \frac{904.779}{113.097}

Do the division to find that the volume of the larger sphere is about 8 times the volume of the smaller sphere.

8 0
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