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3 years ago

What is the radius of a circle that has a circumference of 78.8 inches?

Mathematics

2 answers:

maksim [4K]3 years ago

6 0

Answer:

Easy... its 39.4

Step-by-step explanation:

Cirumference is the lenght all the way around the circle

while radius is only half the circle so you just divide the cirumference by 2 to get half.

sdas [7]3 years ago

3 0

Answer:

12.54

Step-by-step explanation:

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15 points I need help plz ASAP

Yuri [45]

Answer:

See explanation

Step-by-step explanation:

Linear:

1. During the spring, the grass in Gianna's yard grew $\frac{1}{2}$ inch per week.

Equation: $y=\frac{1}{2}x,$ where x is the number of spring weeks, y inches is the height of the grass after x weeks.

2. Rita babysits. She worked 2 hours and earned $24. She worked 3 hours and earned $36.

Equation: $y=12x,$ where x is the number of hours, y is the amount Rita earned in x hours.

Exponential:

1. The population of the town was 25,000 in 1980. Then the population increased by $\frac{1}{2}\%$ per year.

Equation: $y=25,000\cdot (1+0.005)^x,$ where x is the number of years, y is the population after x years passed since 1980.

2. A car was worth $18,500 when it was new. Then the value decreased 18% per year.

Equation: $y=18,500\cdot (1-0.18)^x,$ where x is the number of years, y is the car price after x years passed.

Neither linear nor exponential:

Albert went on a hike. After 1 hour, he had hiked 4 miles; after 2 hours he had hiked 7 miles; after 3 hours he had hiked 11 miles.

The differences 7 - 4 = 3, 11 - 7 = 4 are different, so the function is not linear. Also it is not exponential, becayse each next number of miles is not multiplied the previous number of miles by some number.

3 0

3 years ago

Income tax is 5% on the first $50,000.00 of income or less, and 8% on any income in excess of $50,000.00. Let T(x) be a function

Citrus2011 [14]

Answer:

2Sales $1,120,000.00 $1,000,000.00

3 Cost of goods sold 971,250.00 875,000.00

4 Gross profit $148,750.00 $125,000.00

5 Selling expenses $71,250.00 $62,500.00

6 Administrative expenses 56,000.00 50,000.00

7 Total operating expenses $127,250.00 $112,500.00

8 Income before income tax $21,500.00 $12,500.00

9 Income tax expense 8,000.00 5,000.00

10 Net income $13,500.00 $7,500.00

Required: A. Prepare a comparative income statement with horizontal analysis for the two-year period, indicating the increase (decrease) for the current year when compared with the previous year. Use the minus sign to indicate an amount or percent decrease. If required, round percentages to one decimal place. B. What conclusions can be drawn from the horizontal analysis?

Step-by-step explanation:

3 0

3 years ago

Find the equation of the line with slope 1/3 and y interception (0,-2)

Andreyy89

Answer:

y=(1/3)x-2

Step-by-step explanation:

Plug into equation of y=mx+b

y=(1/3)x-2

6 0

3 years ago

Isabel Briggs Myers was a pioneer in the study of personality types. The personality types are broadly defined according to four

jekas [21]

Answer:

a. Probability (0) = 36/375 = 0.096

Probability (1) = 61/375 = 0.162

Probability (2) = 124/375 = 0.330

Probability (3) = 128/375 = 0.341

Probability (4) = 30/375 = 0.08

b. iii) Yes, because they cover the entire sample space.

c. Obviously, the sample space in this problem is iv.

iv = {0,1,2,3,4} personality preferences in common.

Step-by-step explanation:

In this question, we are asked to calculated the probability of preferences in common.

As we know, the general formula for probability is:

Probability = Number of favorable outcome/ Total number of favorable outcomes

Data Given:

For 0 = 36

For 1 = 61

For 2 = 124

For 3 = 128

For 4 = 128

Total = 375 Married Couples

Probability (0) = Number of favorable outcomes/ Total Number of Favorable outcomes

Probability (0) = 36/375 = 0.096

Similarly,

Probability (1) = 61/375 = 0.162

Similarly,

Probability (2) = 124/375 = 0.330

Similarly,

Probability (3) = 128/375 = 0.341

Similarly,

Probability (4) = 30/375 = 0.08

b. Total Probability can never be greater than 1 and less than 0.

So, Probabilities of the sample will add up to 1

iii) Yes, because they cover the entire sample space.

Total Probability = P(0) + P(1) + P(2) + P(3) + P(4) = 1

Total Probability = 0.09 + 0.16 + 0.33 + 0.34 + 0.08 = 1

c. Obviously, the sample space in this problem is iv.

iv = {0,1,2,3,4} personality preferences in common.

3 0

3 years ago

Which of the following is a description of the data with a correlation coefficient of -0.3?

STALIN [3.7K]

The number is near zero, so it is classified as "low." Its sign is negative, so it is a ...
-low negative correlation

6 0

3 years ago

Read 2 more answers