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3 years ago

Find the radius and the diameter to the nearest hundredth when C = 6π yd. Use 3.14 for π.

Mathematics

1 answer:

weqwewe [10]3 years ago

3 0

D=6 or 3x2 and R= 3.14 should be correct! hope this helps

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A manufacturing plant earned \$80$80dollar sign, 80 per man-hour of labor when it opened. Each year, the plant earns an addition

vagabundo [1.1K]

Answer:

$A(t)=80(1.05)^t$

Step-by-step explanation:

The manufacturing plant earned $80 per man-hour of labor when it opened

The plant earns an additional 5% for every additional man-hour t.

This can be modeled using the function:

$A(t)=P(1+r)^t$

where Initial Amount Earned, P=80

Rate of Increase, r=5%=0.05

Therefore, the function that models the amount earned at any time t is:

$A(t)=80(1+0.05)^t\\A(t)=80(1.05)^t$

3 0

3 years ago

Recall the chapter example which described the fact that the mean IQ in large, diverse populations is 100 and the standard devia

vova2212 [387]

Answer:

The margin of error for the 99% confidence level for this sample is ±2.23.

None of the given figures is close to the answer:

E. None of the above

Step-by-step explanation:

margin of error (ME) around the mean can be calculated using the formula

ME= $\frac{z*s}{\sqrt{N} }$ where

z is the corresponding statistic of the 99% confidence level (2.576)

s is the population IQ standard deviation (15)

N is the sample size (300)

Using these numbers we get:

ME= $\frac{2.576*15}{\sqrt{300} }$ ≈ 2.23

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3 years ago

Cathy borrows $3280 at 0.3% simple interest per month. When Cathy pays the loan back 9 years later what is the total amount that

Afina-wow [57]

Answer: Simple interest= Principal× rate× time/ 100

Amount= Simple interest + Principal

Step-by-step explanation:

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3 years ago

An airplane flies 1920 miles in 3 hours. What is it’s average speed in miles per hour?

const2013 [10]

Answer:

640

Step-by-step explanation:

you just divide

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3 years ago

(7x – 8) + (3X + 8) = 180 x=

GenaCL600 [577]

Step-by-step explanation:

I have answered ur question

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3 years ago