Answer:
YZ = 44
Step-by-step explanation:
Let the intersection of XW and YZ equal A. For this problem, we can use power of a point in the scenario where two secants intersect in the interior of a circle. We get the equation:
WA * AX = ZA * AY
We can substitute the values we are given to get:
(2x - 6)(21) = (x + 1)(30)
42x - 126 = 30x + 30
12x - 126 = 30
12x = 156
x = 13
Using segment addition postulate, we can say that:
YZ = YA + AZ
And we can plug in what we know from the diagram:
YZ = 30 + x + 1
We can also plug in the value of x, 13
YZ = 30 + 13 + 1 = 44
Answer:
33 minutes
Step-by-step explanation:
We know that the initial amount of money on the card is $15 and that she had $12.03 after the call. We can subtract 12.03 from 15 to find out how much the call cost.
15 - 12.03 = 2.97
Now that we know the cost of the call is $2.97, we can divide it by the amount it cost per minute (9 cents) for Susan to make an international call:
First, convert $2.97 to cents:
$2 is the same as 200 cents.
200 + 97 = 297
Now, take 297 and divide it by 9:
297/9 = 33
The call lasted 33 minutes.
Step-by-step explanation:
hope this image will help u
I have solved this myself
X^2-6x-27 = (x-9)(x+3), therefore (a) is the correct answer
