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3 years ago

Segment AB and AC are tangent to the circle C

Mathematics

1 answer:

Vesna [10]3 years ago

5 0

Answer:

Step-by-step explanation:

tangents extending from an external point have the same length to the point of contact(i. e BC=DC)

So, we just equate it

x+3=2x

2x-x= 3

x=3

BC= x+3

or, BC=3+3

Thus, BC=6

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Answer:

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Step-by-step explanation:

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3 years ago

The reacttimes data set has 50 observations of human reaction times to a physical stimulus. The reaction times are named times a

scoundrel [369]

Solution: The formula for mean is:

$Mean=\frac{\sum x}{n}$

Where:

$\sum x$ is the sum of given observations

$n$ is the number of observations

$\sum x=87.12$

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$\therefore Mean =\frac{87.12}{50}= 1.74$ rounded to two decimal places

To find the median, we need to first arrange the data in ascending order but we are already given the data in ascending order.

Therefore, the median is:

$Median=\left(\frac{n+1}{2} \right)^{th} item$

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$=25.5^{th} item$

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$=1.52+0.01$

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4 0

3 years ago

What is the area of a triangle that has a base of 15 yards and a height of 11 yards?

erma4kov [3.2K]

Answer:

82.5

Step-by-step explanation:

The formula for the area of triangle is 1/2 B * H

1/2 of the base is 7.5

multiply that by 11

and you get

82.5

4 0

4 years ago

Can someone help?

nalin [4]

No no no no no no no no no jk its c your welcome

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4 years ago

Stacy decided that she would start doing sit ups every day. Her plan each day was to do twice as many sit ups as she had done th

Whitepunk [10]

Answer:

Day five= 32 sit ups

Step-by-step explanation:

Day 1= 2 sit ups

Day 2= 4 sit ups

Day 3= 8 sit ups

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3 years ago

Segment AB and AC are tangent to the circle C￼

Segment AB and AC are tangent to the circle C