2 years ago

What is the area of the following circle if the diameter is 2?

Mathematics

1 answer:

gulaghasi [49]2 years ago

7 0

Answer:

Area of a circle=πr²

radius is half of the diameter

1/2×2=1

π1²

22/7×1

3.1415926535897932

~3.14

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When using substitution to solve this system of equations, what is the result of the first step x=6y+3

myrzilka [38]

First step: you have to plug in 6y+3 into the equation and solve
Example: 6y+3+2y = 5

3 0

2 years ago

You get GPS units from two manufacturers, A and B. You get 43% of your units from A and 57% of your units from B. In the past, 2

defon

Answer:

0.5015 = 50.15% probability that it came from manufacturer A.

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

$P(B|A) = \frac{P(A \cap B)}{P(A)}$

In which

P(B|A) is the probability of event B happening, given that A happened.

$P(A \cap B)$ is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: Defective

Event B: From manufacturer A.

Probability a unit is defective:

2% of 43%(from manufacturer A)

1.5% of 57%(from manufacturer B). So

$P(A) = 0.02*0.43 + 0.015*0.57 = 0.01715$

Probability a unit is defective and from manufacturer A:

2% of 43%. So

$P(A \cap B) = 0.02*0.43 = 0.0086$

What is the probability that it came from manufacturer A?

$P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.0086}{0.01715} = 0.5015$

0.5015 = 50.15% probability that it came from manufacturer A.

4 0

2 years ago

The cheeseburger contained 30 grams of total fat. If the recommended daily allowance of total fat for a 2,000 calorie diet is 64

netineya [11]

Answer:

47%

Step-by-step explanation:

We can find the percent of the daily allowance by finding what percent 30 is of 64:

30/64 = 0.468 or approx. 47%

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3 years ago

A standard showerhead in Andrew's house dispenses 8 gallons of water per minute. Andrew changed this showerhead to an energy-sav

Kipish [7]

<span>64-24 = 40

</span><span>D) 40 gallons</span>

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2 years ago

lynn takes her puppy, olive, to a doggie daycare. The price for the daycare is 21 per day along with a monthly admission fee of

sashaice [31]

D=426-48(21)
I got 18 days.
So, D=18
Hope this helps! :)

3 0

3 years ago

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