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3 years ago

Find the perimeter & area of

Mathematics

1 answer:

victus00 [196]3 years ago

6 0

Answer:

Perimeter = 32 and Area = 55

Step-by-step explanation:

There is not really an equation for perimiter you just add all the sides together and this is 32. However, for area, you need to multiply length times width and this equals 55.

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The following table gives the mean scores for 4 different classes

aksik [14]

Answer:

Step-by-step explanation:

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3 years ago

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A 6-foot tall man is standing in front of a school and notices his shadow measures 10 feet. At the same time, he notices the fla

irga5000 [103]

Answer:

The tall of the flag pole is 51 ft answer (A)

Step-by-step explanation:

∵ The tall of the man = 6 ft

∵ The his shadow = 10 ft

∵ The shadow of the flag pole = 85 ft

∵ Tall of the man/tall of the flag = shadow of the man/shadow

of the flag

∴ 6/x = 10/85 ⇒ where x is the tall of the flag

∴ x = (6 × 85) ÷ 10 = 510 ÷ 10 = 51 ft

∴ The tall of the flag pole is 51 ft

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3 years ago

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What value of 'c' makes the equation true?

natta225 [31]

Answer:

Step-by-step explanation:

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I need help with this

timama [110]

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for the first one y=2 if x=0 and for the second one I dont know

Step-by-step explanation:

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3 years ago

In an article about disinflation, various investments were examined. The investments included stocks, bonds, and real estate. Su

kykrilka [37]

Answer:

Step-by-step explanation:

Using the formula for calculating the confidence interval to estimate an interval for the mean rate of return on all real estate investments with 95% confidence;

Confidence Interval = xbar±(Z*S/√n)

xbar is the mean = 20%(assumed since we are not given)

n is the sample size = 200

S is the standard deviation = 2.25%

Z is the Z score at 95% confidence interval = 1.960

Confidence Interval = 20±(1.96*2.25/√200)

Confidence Interval = 20±(1.96*2.25/14.14)

Confidence Interval = 20±(1.96*0.159)

Confidence Interval = 20±0.312

Confidence Interval = (20-0.312, 20+0.312)

Confidence Interval = (19.688, 20.312)

Hence the interval for the mean rate of return on all real estate investments with 95% confidence is 19.688<x<20.312.

This means that the minimum rate of return on investment is 19.688% and the maximum rate of return on investment is 20.312%.(assuming 20% as the mean)

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3 years ago