1 answer:
Answer:
d. 6
Step-by-step explanation:
The product of lengths to the near and far intersection points is the same for both secants:
PB×PA = PD×PC
We can use this relation to solve for x, then use the value of x to find PD.
7×12 = (3x)(7x)
4 = x² . . . . . . . . . divide by 21
2 = x . . . . . . . . . . take the square root
__
PD = 3x = 3·2
PD = 6
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Answer:
8
Step-by-step explanation:
12x+120=24// 12x=96//x=8
hope this helps
B is the answer to this question
3x + 14 = 20 - 2x
add 2x to each side
5x +14 = 20
subtract 14 from each side
5x = 6
x = 6/5 = 1 1/5
Answer: 1 1/5
Pull out a 5 from the first parenthesis
(5x+15) = 5(x+3)
Pull out a 25 from the second parenthesis
(25x+75) = 25(x+3)
(5x+15) + (25x+75) = your first answer = 5(x+3) + 25(x+3)
Answer: 9
Step-by-step explanation:
x2+6x+(3)2=15+(3)2
x2+6x+9=24
(x+3)2=24
x=±2√6−3
x=±2√6−3 is final answer
