Ask question

Ask question

All categories

3 years ago

7

Triangle ABC is inscribed in the circle, mA=50, and AB=BC. Find arch AC.

1 answer:

Karolina [17]3 years ago

3 0

The answer is C) 160.

We know this because if mA = 50, we know that mC must also be 50. This is due to the fact that AB = BC. This leaves us with mB as 80 since the angles of a triangle always have to equal 180.

Now knowing this, it is easy to find the arc lengths in degrees. When you have a transcribed triangle, all we are going to do here is double the angle of the triangle to get the arc measure.

mB = 80

80*2 = 160

You might be interested in

Evaluate each expression for x = 6 and for x = 3. Based on your results, do you know whether the two expressions are equivalent?

Nesterboy [21]

Idk idk idk i reall dont know that is hard but good luck

4 0

3 years ago

Sebastian buys a gift which costs £18.20 He pays with a £20 note. (a) How much change does he receive?

Triss [41]

Answer:

1.80

Step-by-step explanation:

i think

5 0

2 years ago

How to differentiate y=x^n using the first principle. In this question, I cannot use the rule of differentiation. I have to do t

Zarrin [17]

By first principles, the derivative is

$\displaystyle\lim_{h\to0}\frac{(x+h)^n-x^n}h$

Use the binomial theorem to expand the numerator:

$(x+h)^n=\displaystyle\sum_{i=0}^n\binom nix^{n-i}h^i=\binom n0x^n+\binom n1x^{n-1}h+\cdots+\binom nnh^n$

$(x+h)^n=x^n+nx^{n-1}h+\dfrac{n(n-1)}2x^{n-2}h^2+\cdots+nxh^{n-1}+h^n$

where

$\dbinom nk=\dfrac{n!}{k!(n-k)!}$

The first term is eliminated, and the limit is

$\displaystyle\lim_{h\to0}\frac{nx^{n-1}h+\dfrac{n(n-1)}2x^{n-2}h^2+\cdots+nxh^{n-1}+h^n}h$

A power of $h$ in every term of the numerator cancels with $h$ in the denominator:

$\displaystyle\lim_{h\to0}\left(nx^{n-1}+\dfrac{n(n-1)}2x^{n-2}h+\cdots+nxh^{n-2}+h^{n-1}\right)$

Finally, each term containing $h$ approaches 0 as $h\to0$ , and the derivative is

$y=x^n\implies y'=nx^{n-1}$

4 0

3 years ago

What is the measure of angle m?

Mars2501 [29]

Answer:

55 hun...

Step-by-step explanation:

a straight line is equal to 180 degrees, 180-125=55! :) hope this helps

4 0

2 years ago

Read 2 more answers

Michaela spent a total of 12 1/2 hours doing her online learning work this week. If she spent 5 3/4 of those hours working on Mo

g100num [7]

You Ask Alexa or Siri and I will tell you

6 0

3 years ago

Read 2 more answers