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labwork [276]
3 years ago
13

A jar contains 11 pennies and 8 dimes. What is the ratio of dimes to pennies? A. 19 to 11 B. 11 to 19 C. 8 to 11 D. 11 to 8

Mathematics
2 answers:
vekshin13 years ago
7 0
I think the answer is D 
tamaranim1 [39]3 years ago
6 0
It will be c  remember that you said dimes to pennies so it will be 8 to 11

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A random sample of 12 men age 60-65 has a mean blood pressure of 142. 3 mmHg and a standard deviation of 20.8 mmHg. Construct a
Over [174]

Answer:

The 99% confidence interval = (126.93,157.67)

Step-by-step explanation:

The formula for Confidence Interval =

Mean ± z × Standard deviation /√n

Mean = 142. 3 mmHg

Standard deviation = 20.8 mmHg.

n = 12

Z score for 99% confidence interval = 2.56

Confidence Interval =

142.3 ± 2.56 × 20.8/√12

142.3 ± 2.56 × 6.0044427996

142.3 ± 15.371373567

Confidence Interval

= 142.3 - 15.371373567

= 126.92862643

≈ 126.93

142.3 + 15.371373567

= 157.67137357

≈ 157.67

Therefore, the 99% confidence interval = (126.93,157.67)

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2 years ago
A board is 4ft 8in long how long is the board in feet
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the board would be 4.85 feet

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3 years ago
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Answer:

The first bottle holds 25 3/5 ounces of water.

Step-by-step explanation:

16 x 8/5

= 16/1 x 8/5

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2 years ago
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A store sells 16 notebooks $7.04 at te same rate what is the cost of 4 notebooks​
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4 x 7.04 ...................................

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2 years ago
The quantity is called the pooled variance estimate of the common variance of two unknown but equal population variances. It is
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Answer:

sample variances

Step-by-step explanation:

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The weights represent the sample variances.

So the correct answer is

sample variances

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3 years ago
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