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
adelina 88 [10]
3 years ago
12

What is the value of x ?

Mathematics
1 answer:
Ivan3 years ago
8 0

Answer:

x = 3

Step-by-step explanation:

Given two secants drawn from an external point to the circle, then

The product of the external part and the whole of one secant is equal to the product of the external part and the whole of the other secant, that is

x(x + 21) = (x + 1)(x + 1 + 14)

x² + 21x = (x + 1)(x + 15) ← expand using FOIL

x² + 21x = x² + 16x + 15 ( subtract x² + 16x from both sides )

5x = 15 ( divide both sides by 5 )

x = 3

You might be interested in
WILL MARK BRAINLIEST PLEASE HELP
vlada-n [284]

Answer:  

2x + (-2x + 3) = 3

2x - 2x +3

0 + 3

3

2x-7 + (-2x) = -7

2x -2x - 7

0 -7

-7

-(5x -1) + 5x = 1

-5x +1 + 5x

-5x + 5x + 1

0 + 1

1

Step-by-step explanation: In addition, the parentheses help identify the individual addends. If adding a negative number, it is the same as subtracting. If there is a negative sign outside the parentheses, as in example c, you must distribute it: the signs of the numbers within the parentheses must be reversed when the parentheses are removed.

6 0
3 years ago
An employee pays what percentage for FICA?
Neporo4naja [7]
<span>FICA takes out a percentage of 7.65% per person </span>
4 0
3 years ago
Read 2 more answers
Round 5294 to the nearest hundred
sleet_krkn [62]
It would be 5300 when rounded
5 0
3 years ago
Pls help I need a good grade
aleksley [76]

Answer:

f= -14

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
|2i+3j| is equal to:
IgorLugansk [536]

babe what are you doing on brainly?

8 0
2 years ago
Read 2 more answers
Other questions:
  • Solve. 3,512- 1,308?
    15·2 answers
  • Which story problem could be solved using the given equation? 14×35=m
    5·2 answers
  • 9372282 rounded to the nearest 100
    13·2 answers
  • Questions 4 and 5 refer to the following:
    14·1 answer
  • What is a rational number?
    10·1 answer
  • Dora, the school lunch manager, says that it takes 225 oranges to make 5 gallons of orange juice how many oranges does Dora need
    7·2 answers
  • I need help what is the answer will mark brainliest please help
    15·1 answer
  • Determine the equation of a horizontal line that passes through (4,7)​
    5·1 answer
  • Can y’all help me on this graph work asap pls
    11·2 answers
  • Which linear function represents the line given by the point-slope equation y - 8 = 1/2 (x-4)
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!