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2 years ago

7

Can some please help me I will mark u brilliant

1 answer:

brilliants [131]2 years ago

6 0

Question 2: -4/3

Question 3: -7/20

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A basketball player made 77 out of 100 attempted free throws. What percentage of free throws was made?

Sloan [31]

Answer:

77%

Step-by-step explanation:

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Write an equation for the description.

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L = 2w 134 = 2L + 2w

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Christine wants to buy a bicycle for her little brother. She receives a coupon in the mail for 5% off the bicycle. The bicycle h

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3 years ago

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The speeds of cars on a given i street we are normally distributed with a mean of 72 miles per hour and a standard deviation of

Ostrovityanka [42]

Answer: 72.78% of the drivers are traveling between 70 and 80 miles per hour based on this distribution.

Step-by-step explanation:

Let X be a random variable that represents the speed of the drivers.

Given: population mean : M = 72 miles ,

Standard deviation: s= 3.2 miles

The probability that the drivers are traveling between 70 and 80 miles per hour based on this distribution:

$P(70\leq X\leq 80)=P(\frac{70-72}{3.2}\leq \frac{X-M}{s}\leq\frac{80-72}{3.2})\\\\= P(-0.625\leq Z\leq 2.5)\ \ \ \ \ [Z=\frac{X-M}{s}]\\\\=P(Z\leq2.5)-P(Z\leq -0.625)\\\\\\ =0.9938-0.2660\ \ \ [\text{Using p-value calculator}]\\\\=0.7278$

Hence, 72.78% of the drivers are traveling between 70 and 80 miles per hour based on this distribution.

3 0

2 years ago

Can someone help me! Please

likoan [24]

Answer:

4c - 2

Step-by-step explanation:

Add up all the terms to find the perimeter.

2c + 2(c - 1)

2c + 2c - 2

4c - 2

Therefore, the perimeter is 4c - 2.

5 0

2 years ago