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3 years ago

14

A horse's mane grows at the rate of 6/5 centimeters per month. How many months will it take the horse's mane to grow 24/10 centi

meters?

1 answer:

Fittoniya [83]3 years ago

6 0

24/10
---------
6/5

2 months

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A clinical trial was conducted to test the effectiveness of a drug for treating insomnia and older subjects before treatment 14

RideAnS [48]

Answer:

99% confidence interval estimate of the mean weight time for a population with drug treatments

(79.11 , 112.69)

Step-by-step explanation:

<u><em>Step(i):</em></u>-

Given data mean of the Population = 104 minutes

Given sample size 'n' =14

Mean of the sample(x⁻) = 95.9 minutes

Given Standard deviation = 24.4 minutes

<u><em>Step(ii)</em></u>:-

99% confidence interval estimate of the mean weight time for a population is determined by

$(x^{-} - Z_{0.01} \frac{S.D}{\sqrt{n} } , x^{-} +Z_{0.01} \frac{S.D}{\sqrt{n} })$

$(95.9 - 2.576\frac{24.4}{\sqrt{14} } , 95.9+2.576\frac{24.4}{\sqrt{14} })$

On calculation , we get

(95.9 -16.79 , 95.9 +16.79)

(79.11 , 112.69)

<u><em>Conclusion:</em></u>-

99% confidence interval estimate of the mean weight time for a population with drug treatments

(79.11 , 112.69)

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3 years ago

What are the solutions of the equation?<br>15 - 8x^2 – 14x

ipn [44]

One solution to your problem is 15(1-2x)

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3 years ago

In an alloy of gold and silver the ratio of the metals is 6:4. How much gold is there in 200 grams of this alloy?

nexus9112 [7]

Answer:

120 gold is in the alloy

Step-by-step explanation:

G:S

6:4

6+4=10

200/10=20

20*6=120

Hope this helps!

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3 years ago

How many minutes would he take to run 4 miles?

lana66690 [7]

Answer: 30 miles

Step-by-step explanation:

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2 years ago

Jaquin would like to install a rug in her square living room. Her living room has an area of 121 square feet. What should the si

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Answer:

11 feet

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All the sides of a square are equal

the area of a square = length²

121 ft² = length²

to determine the length find the square root of the area, 121

√121 = 11 feet

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3 years ago