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3 years ago

The center and a point on a circle are given. Find the circumference to the nearest tenth.

Mathematics

1 answer:

kvv77 [185]3 years ago

3 0

Answer:

Circumference ~ 53.4

Step-by-step explanation:

Use the distance formula to get the radius of the circle. The radius is about 8.5. Now put 8.5 into the formula 2(pi)r for the Circumference. Rounding to the nearest tenth the answer is 53.4

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What is the area of this figure?

andrezito [222]

Answer:

286 mm ^2

Step-by-step explanation:

The figure is a trapezoid

The area of a trapezoid is given by

A = 1/2 ( b1+b2) *h where b1 and b2 are the lengths of the bases and h is the height

A = 1/2 ( 28+24) * 11

A = 1/2 (52)*11

A =286 mm ^2

6 0

3 years ago

Read 2 more answers

The lengths of the sides of a triangle are in the extended ratio 44 : 55 : 77. the perimeter of the triangle is 6464 cm. what

joja [24]

44x + 55x + 77x = 6,464 centimeters.
x = 36.7272727273 

Therefore the sides are
44*36.7272727273 = 1,616 
55*36.7272727273 = 2,020
77* 36.7272727273 = 2,828

OR maybe that's another of those infamous Brainly typos.

4x + 5x + 7x = 64 centimeters.
x = 8

Therefore the sides are
4*8 = 32
5*8 = 40 and
7*8 = 56 centimeters

6 0

3 years ago

Kara had a savings account balance of $153 on Monday. On Tuesday, she had six withdraws of $15.72 and a deposit of $235.15. What

Mars2501 [29]

Answer: 219.4

Step-by-step explanation:

3 0

3 years ago

Which point lies on the line with point-slope equation y - 2 = 5(x-6)

BigorU [14]

Try C. It should be correct.

6 0

3 years ago

A measure of the strength of the relationship between two variables is referred to as the A. standard deviation of the estimate.

marin [14]

Answer:

D. Coefficient of Correlation

Step-by-step explanation:

The name itself "Coefficient of Correlation" involves the word correlation, meaning relationship between two things.

The coefficient of Correlation is used to determine how strong a relationship is between two variables.

The formula of Coefficient of Correlation gives a value between -1 and 1. Moreover, it helps to plot a graph showing the strength of relationship.

1 : A strong positive relationship

-1: A Strong negative relationship

0: No relationship at all

One of the most used formula is Pearson Correlation Coefficient Formula, picture of which is attached. X and Y represent two different set of datas.

Note:

The other terms are defined as :

Coefficient of Determination : Square of correlation between predicted scores and actual scores. It usually ranges from 0 to 1 .

Standard deviation of estimate : represents the amount of variation among a set of values .

Standard Error of estimate : It is the measure of dispersion of sample means around population means.

6 0

3 years ago