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quester [9]
3 years ago
11

Describe the change in the graph of the parabola f(x) when it transforms into g(x) = −3f(x).

Mathematics
1 answer:
Snowcat [4.5K]3 years ago
3 0

Answer: D

The parabola g(x) will open in the same direction of f(x), and the parabola will be wider than f(x).

I TOOK THE TEST

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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
  • 1.4%
  • -0.6
  • 27.4%
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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%.

_____

<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
4x4=(blank)+(blank)=blank​
kari74 [83]

Answer:

i think it would be 4x4=8+8=16

4 0
2 years ago
HELPP ASAPPP
Softa [21]

Answer:

3/8

Step-by-step explanation:

3/4*1/2=3/8

3/8*1=3/8

*=multiply

3 0
3 years ago
Can someone explain what these types of arrows mean please?
Yakvenalex [24]
I think it means grater or less ? Or positive or negative?
8 0
2 years ago
A 25-pound bag of bird food costs $19.50.A 30-pound bag of the same bird food costs $5.18.A 26-ounce opackage costs $10.40. Whic
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The 30 pound bag is the bust guys it's bigger and same price and in the long run would be better
7 0
2 years ago
Read 2 more answers
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