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3 years ago

Please answer from the picture below!!

Mathematics

1 answer:

vagabundo [1.1K]3 years ago

3 0

A is the correct answer

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The circumference of a circle measures 11.27 pi feet. What is the measure of the diameter of the circle?

scoray [572]

C=11.27π feet
Diameter=11.27 feet. Hope it help!

4 0

3 years ago

Carla earns $13 an hour cleaning house. How much will she earn if she works from 8:00 to 2:00?

Andreyy89

8pm to 2am, or 8am to 2pm, either way, Carla would've worked for 6 hours.

6*$13=$78

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Carla would earn $78 if she were to clean for 6 hours.

4 0

2 years ago

Read 2 more answers

A random sample of size 100 was taken from a population. A 94% confidence interval to estimate the mean of the population was co

Firlakuza [10]

Answer:

Step-by-step explanation:

1) The z value was determined using a normal distribution table. From the normal distribution table, the corresponding z value for a 94% confidence interval is 1.88

The correct option is D

2) if 70% of all internet users experience e-mail fraud. It means that probability of success, p

p = 70/100 = 0.7

q = 1 - p = 1 - 0.7 = 0.3

n = number of selected users = 50

Mean, u = np = 50×0.7 = 35

Standard deviation, u = √npq = √50×0.7×0.3 = 3.24

x = number of internet users

The formula for normal distribution is expressed as

z = (x - u)/s

We want to determine the probability that no more than 25 were victims of e-mail fraud. It is expressed as

P(x lesser than or equal to 25)

The z value will be

z = (25- 35)/3.24 = - 10/3.24 = -3.09

Looking at the normal distribution table, the corresponding z score is 0.001

P(x lesser than or equal to 25) = 0.001

7 0

3 years ago

One cell phone carrier charges 26.50 a month plus 0.15

Gwar [14]

So what do you need us to do for you?

4 0

3 years ago

How to find the sum of 2+4+6....+40?

grandymaker [24]

Answer 420.
a, is the first term. d is difference.
Since this is an arithmetic progression, I use this formula.
Un = nth term
Sn = sum of terms.
First find the number of terms, which is 20.
Then use the second formula to find the sum.

3 0

3 years ago