1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lera25 [3.4K]
2 years ago
15

I'll mark as brainliest if it lets me;-;please answer B. & C. with solution:)​

Mathematics
1 answer:
san4es73 [151]2 years ago
7 0

Answer:

B. AC = 22, BC = 22, AB = 44

C. AC = 30, BC = 30, AB = 60

Step-by-step explanation:

B.

radius \: \overline {OR} \perp chord \: \overline {AB} at C. (given)

\therefore AC = BC (perpendicular dropped from the center of the circle to the chord bisects the chord)

\therefore 2x - 6 = x + 8

\therefore 2x - x= 6 + 8

\therefore x= 14

AC = 2x-6=2(14)-6=28-6= 22

BC= x + 8=14 + 8= 22

AB = AC + BC = 22 + 22 = 44

C.

radius \: \overline {OR} \perp chord \: \overline {AB} at C. (given)

\therefore BC = AC (perpendicular dropped from the center of the circle to the chord bisects the chord)

\therefore 7x-5=4x+10

\therefore 7x - 4x= 5 + 10

\therefore 3x= 15

\therefore x= \frac{15}{3}

\therefore x= 5

AC = 4x+10=4(5)+10=20+10= 30

BC= 7x - 5=7(5)-5=35-5= 30

AB = AC + BC = 30 + 30 = 60

You might be interested in
Which expression is equivalent to 36x2 - 25?
Dimas [21]

Answer:

The equivalent expression is: (6x + 5)*(6x - 5)

Step-by-step explanation:

This expression is called the difference of two squares.

It has the following format: a^{2} - b^{2}

It is factored as: a^{2} - b^{2} = (a-b)*(a+b)

In this question:

a^{2} - b^{2} = 36x^{2} - 25

So

a^{2} = 36x^{2}, then a = \sqrt{36x^{2}} = 6x

b^{2} = 25, then b = \sqrt{25} = 5

So

The equivalent expression is: (6x + 5)*(6x - 5)

3 0
2 years ago
What is the prime factorization of 102
morpeh [17]
<span>102 is a composite number. 102 = 1 x 102, 2 x 51, 3 x 34, or 6 x 17. Factors of 102: 1, 2, 3, 6, 17, 34, 51, 102. Prime factorization: 102 = 2 x 3 x 17.</span>Apr 28, 2014prime factors of 102 | Find the Factors<span>https://findthefactors.com/tag/prime-factors-of-102/</span>
5 0
2 years ago
How much would $400 be worth after 6 years if it was invested at 2% interest compounded annually
Alexxx [7]
P=400 (your amount invested)
r=.02 (rate as a decimal)
n=1 (number of times compounded per year, annually meaning 1)
t=6 (number of years invested)

you must follow orders of operations when you plug these things in your calculator.
1st step) do .02/1 to get 0.2 then add 1 to get 1.02. raise this to (1*6)and you get roughly 1.126, now multiply this by 400 to get answer D 450.46.
4 0
2 years ago
Read 2 more answers
What are 2 equivalent expressions that are equal to 10m-40
yuradex [85]
It's simple, there is a ton
Multiply all the numbers by 2: 20m - 80
or Divide all the numbers by 2: 5m- 20
or Multiply all the numbers by 3: 30m - 120
4 0
2 years ago
Read 2 more answers
What are the coordinates of the point obtained if the point A=(3,7) is rotated 180 degrees about the origin?
Yuliya22 [10]

Answer:

B. (-3, -7)

Step-by-step explanation:

Anytime you rotate a number 180° about the origin, the numbers in the coordinates become their opposites.

-3 is the opposite of 3 and -7 is the opposite of 7.

Therefore, your new coordinates are (-3, -7)

(x,y) becomes (-x,-y)

8 0
3 years ago
Other questions:
  • Which list shows all the factor pairs of 64?
    6·1 answer
  • -3x6y4/-3x6y4 in simplest form
    9·2 answers
  • A mint produces 150000 souviner coins each year. In a random sample of 400 coins, 3 have a misprint. Predict the number of coins
    9·1 answer
  • Solve the quadratic by taking the square root
    5·1 answer
  • ‏In Problems 1 and 2 use Euler's method to obtain a four decimal approximation of the indicated value . Carry out the recursion
    8·1 answer
  • A teacher places 10 marbles in a bag.
    14·1 answer
  • So this isn't a question about math it's about grades so in my school 4 points are required to pass each grade and I have 4 poin
    11·2 answers
  • Estimate each percent: 50% of 39
    15·2 answers
  • A sock drawer has 17 folded pairs of socks, with 8 pairs of white, 5 pairs of black and 4 pairs of blue. What is the probability
    13·1 answer
  • Calculate the average rate of change in temperature between 8:00 am and 11:00 am. round your answer to two decimal places. a. 4.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!