All categories

2 years ago

PLS HELP In circle A, secant EC and tangent BC intersect at point C. mЕВ = 171° and mBD 83°. What is mBCD?

Mathematics

1 answer:

liubo4ka [24]2 years ago

4 0

Answer:

∠ BCD = 44°

Step-by-step explanation:

the secant- tangent angle BCD is half the difference of the intercepted arcs, so

∠ BCD = $\frac{1}{2}$ (EB - BD) = $\frac{1}{2}$ (171 - 83)° = $\frac{1}{2}$ × 88° = 44°

You might be interested in

Factor the expression.

grigory [225]

Hey!

First, let's write the problem,
$4r^2-64$
Factor out the common term, which is 4,
$=4\left(r^2-16\right)$
Then, let's factor this part: $r^2-16$
We are going to factor it using the difference of squares rule.
$=\left(r+4\right)\left(r-4\right)$
Our final factored answer would be,
$=4\left(r+4\right)\left(r-4\right)$

Thanks!
-TetraFish

8 0

3 years ago

Read 2 more answers

Name the constant(s) in the expression 7x + 9y + 3

mart [117]

The answer is B. 3

It is the only value not attached to a variable, thus remaining constant.

8 0

3 years ago

Can you answer the bottom problem please

Minchanka [31]

This is not the answer, but I want to tell you that I can't see what the problem says. I would help you, but I can't.

7 0

3 years ago

Answer to be named brainliest get a thank you and a 5 star vote

Leya [2.2K]

Answer:

30%

Step-by-step explanation:

Meagan completed 14/20 math problems. 14÷20 is 0.7

So she completed 70% of those math problems. The question is How many does she have left?

So she has 30% left to complete.

3 0

3 years ago

What is the value of x in the figure? Enter your answer in the box.<br> 145°<br> (2x + 15)°<br> x=

Nikolay [14]

Answer:

Answer: x=65

Step-by-step explanation:

Since they're vertical angles both sides are equal to 145 degrees

So, 145-15= 130 to get rid of the constant

Then, 130/2=65

To check you work add up all of your solutions to get 145

2*65=130 & 130+15=145

Therefore, x=65

8 0

3 years ago

Read 2 more answers