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inn [45]
3 years ago
9

A rectangular container is filled with water to a depth of 40 mm. The container is 60 mm long and 50 mm wide. The container is t

hen put in a freezer until the water is completely frozen. The depth of the ice in the container is 44 mm. How much did the volume change when the water turned to ice?
Mathematics
1 answer:
blondinia [14]3 years ago
4 0

Volume is L x W x H.

Original volume: 40 x 60 x 50 = 120,000 cubic mm.

New Volume: 44 x 60 x 50 = 132,000 cubic mm


Change in volume: 132,000 - 120,000 = 12,000 cubic mm

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Which container holds more a half gallon carton or a 2-quart bottle explain
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3 0
3 years ago
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A set of cloth napkins was originally priced at $4.99, but Zack waited to buy it until it was 45% off. If he paid 15% sales tax
Mademuasel [1]

Answer:

3.15

Step-by-step explanation:

4.99x.45=2.25 discount

4.99-2.25=2.74 sales price

2.74x.15=.41 sales tax

2.74+.41=3.15 total price

4 0
3 years ago
the sample mean foot length of a simple random sample of 25 third-graders is 22.5 cm. The standard error of the mean is 0.8 cm.
GenaCL600 [577]

Question:

The sample mean foot length of a simple random sample of 25 third-graders is 22.5 cm. The standard error of the mean is 0.8 cm. Which one of the following is a correct interpretation for the standard error of the mean?

The typical distance between each individual foot length in the sample and the sample mean foot length is approximately 0.8 cm.

The typical distance between one sample mean foot length and another sample mean foot length is 0.8 cm.

The typical distance between each individual foot length in the population and the true mean foot length is approximately 0.8 cm.

The typical distance between means of samples of size 25 and the population mean foot length is approximately 0.8 cm

The typical distance between each individual foot length in the sample and the true mean foot length is approximately 0.8 cm.

Answer:

The correct option is:

The typical distance between means of samples of size 25 and the population mean foot length is approximately 0.8 cm

Step-by-step explanation:

The standard error of the mean is a measure of the extent of variation of the mean in a sample of data from that of the value of the mean within the general population. It is a statistical measure of the probability that the size of a particular sample will approach that of the population mean, with reference to the principle of the central limit theorem.

Therefore, the interpretation of the standard error is that the variation between mean in a sample of 25 and that of the population is about 0.8 cm.

8 0
4 years ago
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ValentinkaMS [17]
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6 0
3 years ago
NEED HELP NOW Angles not necessarily drawn to scale
Katena32 [7]
Answer:

x = 56

Explanation:

You have a straight angle, and you’re given 2 angles. And since there are 3 angles that make up 180, we do:

180 - 64 - 60 = 56.

Hope it helps. ^^
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3 years ago
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