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9966 [12]
2 years ago
10

Pls help this is my last attempt to get it right before I fail.

Mathematics
2 answers:
Bess [88]2 years ago
6 0
The answer is D the scale factor is 0.4
TEA [102]2 years ago
5 0
The answer is D. SF is .4
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Percent equivalent of 7/15
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46.67 is the answer to this question.
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What is the measure of ZR in APQR? Round to the
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Step-by-step explanation:

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A fruit bowl contains apples, oranges, and bananas. The radius of one of the oranges is 1.25 inches. What is the approximate vol
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8.18 cubic inches

Step-by-step explanation:

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3 years ago
Delia measured her bathtub to be 2 meters long. What is an equivalent measurement?
allochka39001 [22]


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4 0
3 years ago
Calibrating a scale:
lana66690 [7]

Answer:

We conclude that the calibration point is set too high.

Step-by-step explanation:

We are given the following in the question:

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Sample mean, \bar{x} =  1001.1 grams

Sample size, n = 50

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Population standard deviation, σ = 2.8 grams

First, we design the null and the alternate hypothesis

H_{0}: \mu = 1000\text{ grams}\\H_A: \mu > 1000\text{ grams}

We use One-tailed(right) z test to perform this hypothesis.

Formula:

z_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }

Putting all the values, we have

z_{stat} = \displaystyle\frac{ 1001.1 - 1000}{\frac{2.8}{\sqrt{50}} } = 2.778

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Since,  

z_{stat} > z_{critical}

We reject the null hypothesis and accept the alternate hypothesis. We accept the alternate hypothesis. We conclude that the calibration point is set too high.

6 0
3 years ago
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