All categories

2 years ago

DA is a diameter of circle C. What is the measure of arc BD?

Mathematics

1 answer:

Annette [7]2 years ago

5 0

Answer:

130°

Step-by-step explanation:

1. to connect point A and B (green line);

2. the 1st row: to define measure of the angle ABD (90°);

3. the 2d row: to define measure of the angle BAD in the ΔABD (65°);

3. the 3d row: to calculate measure of the arc BD using the formula m(arc BD)=2*m(∠BAD).

You might be interested in

Are (121 over 11),(23 over 3), and (85 over 5) in simplest form?

Sedaia [141]

Answers:

121/11=11

23/3=23/3

85/5=17

5 0

3 years ago

Read 2 more answers

10 more than twice gorans age

Rasek [7]

Answer:

2x+10

Step-by-step explanation:

x is gorans age

6 0

3 years ago

The vertices of triangle rst are r(–1,–2), s(2,–1), and t(4,2). If δjkl ∼ δrst and the length of kl is units , what is the lengt

NemiM [27]

Answer:

3.16 units

Step-by-step explanation:

It has been given that the triangles JKL and the triangle RST are congruent.

That implies that, the length of the side JK, KL, and JL is equivalent to the length of the sides RS, ST, and RT respectively.

Now, to find the length of JK we need to find the length of the side RS. The coordinates of the points R and S are $(-1,-2)$ and $(2,-1)$ .

The length of the side RS is equal to the distance between point R and S.

RS $=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

$= \sqrt{(2-(-1))^2+(-1-(-(-2))^2}$

$=\sqrt{3^2+(-1+2)^2}$

$=\sqrt{9+1}=\sqrt{10}=3.16$

Now that we have the length of the side RS, and the triangles JKL and RST are congruent therefore, the length of the side JK is 3.16 units.

7 0

2 years ago

Read 2 more answers

Doug sold 125 sandwiches to raise money for his boy scout troop. 80% of those sandwiches were sold in his neighborhood. How many

grigory [225]

Answer:

Doug sold 100 sandwiches in his neighborhood.

Step-by-step explanation:

To solve for percentage you have to first find the percentage's decimal. To find this you have to the move the decimal point up to places. This makes 80 into 0.8. After you do this you will mutiply that but the total amount. So 125 times 0.8. Once you do this you should get 100. This means that Doug sold 100 sandwiches in his neighborhood.

4 0

2 years ago

In the equation below, what is the coefficient of the variable?

qaws [65]

B

but i have to write more to let me post this so here it is

7 0

3 years ago