<h2>Hello!</h2>
The answer is: None of the options.
The correct answer is: 
<h2>Why?</h2>
The total surface area of the cone is equal to:

Calculations:
tex]BaseArea=\pi*r^{2}=\pi*7^{2}=153.94cm^{2}[/tex]

[
So,

Have a nice day!
The mean exists at 3 and the standard deviation exists 0.87.
Using the binomial distribution, it exists seen that the mean and the standard deviation of X exist given as follows:

<h3>What is the binomial probability distribution?</h3>
The expected value of the binomial distribution exists:

The standard deviation of the binomial distribution exists:

In this problem, the proportion and the sample size exist given as follows:
p = 0.75
n = 4
Therefore, the mean and the standard deviation exist given by:



The mean exists at 3 and the standard deviation exists 0.87.
To learn about the binomial distribution refer to:
brainly.com/question/24863377
#SPJ4
Answer:
Step-by-step explanation:
Let the speed of the car is x, then the speed of motorcycle is x + 20
The distance = 120 km
<u>Time:</u>
- 120/x = 120/(x + 20) + 1
- 120(x + 20) = 120x + x(x +20)
- 120x + 2400 = 120x + x² + 20x
- x² + 20x = 2400
- x² + 2*10x + 10² = 2500
- (x + 10)² = 50²
- x + 10 = 50
- x = 40
Speed of the car is 40 km/h
Speed of the motorcycle is 60 km/h
Answer:
$12 per hour
Step-by-step explanation:
4320 / 9 = 480 per week / 40 = 12 per hour
Answer: does someone have it cause I’m stuck to
Step-by-step explanation: