Ask question

Ask question

All categories

4 years ago

13

Find the measure of arc BC.

2 answers:

Lilit [14]4 years ago

8 0

It is 115 degres
BE is a diameter, so it equals 180 degrees
You have to find angle A, because the angle A will equal the arc measure of BC
In order to find A, you need to subtract 40 and 25 from 180
180-40-25=115
The measure of arc BC is 115 degrees
hope this helps:))

AURORKA [14]4 years ago

3 0

Arc BC = 180 - ( 40 + 25) = 180 - 65 = 115

hope it helps

You might be interested in

Write a linear equation based on given information. Through (5,-5) and (4,0)

Katena32 [7]

For this case we have that by definition, the equation of the line of the slope-intersection form is given by:

$y = mx + b$

Where:

m: It is the slope of the line

b: It is the cut point with the y axis

We have the following points:

$(x_ {1}, y_ {1}) :( 5, -5)\\(x_ {2}, y_ {2}) :( 4,0)$

We find the slope:

$m = \frac {y_ {2} -y_ {1}} {x_ {2} -x_ {1}} = \frac {0 - (- 5)} {4-5} = \frac {5} {- 1} = - 5$

Thus, the equation is of the form:

$y = -5x + b$

We substitute a point and find b:

$0 = -5 (4) + b\\0 = -20 + b\\b = 20$

Finally, the equation is:

$y = -5x + 20$

Answer:

$y = -5x + 20$

6 0

3 years ago

HELP ASAP PLS GIVING BRAINLIEST

Dmitry_Shevchenko [17]

whats the book name i need the book name I'm going to guess its pearson idont k-now why but its familiar the entire books online just search github

4 0

3 years ago

Factorise p^2 + q^2 +5(p^2 + q^2)

Vinvika [58]

Step-by-step explanation:

p² + q² + 5(p² + q²)

= 1(p² + q²) + 5(p² + q²)

= (1 + 5)(p² + q²)

= 6(p² + q²).

5 0

3 years ago

three times the sum of a number x and 3 is 10 plus twice the difference of the number x and another number y

Nadya [2.5K]

Step-by-step explanation:

We have 3(x + 3) = 10 + 2(x - y).

=> 3x + 9 = 10 + 2x - y

=> x = 1 - y

=> y = 1 - x.

(Rewritting it as a mathematical statement is the 1st line)

4 0

3 years ago

The water level in a swimming pool decreases from 60 inches to 58.25 inches in one week.

Keith_Richards [23]

I think it’s gonna be A.

8 0

3 years ago