Answer:
I kinda understand it but I don't really know sorry
Step-by-step explanation:
I think the answer is B at 4.7
Answer:
(a) P = 4x+10
(b) x = 6
Step-by-step explanation:
(a) The perimeter is the sum of the side lengths:
P = AB +AC +BC = 2x +2x +10
P = 4x+10
__
(b) For P=34, the value of x is ...
34 = 4x +10 . . . .substitute given value for P
24 = 4x . . . . . . . subtract 10
6 = x . . . . . . . . . .divide by 4
First we need to simplify the numerator of the fraction
(2 - 4i)(3 + 5i)
= 6 +10i - 12i - 20i²
= 6 - 2i + 20
= 26 - 2i
So now the fraction becomes:

In order to convert the fraction to standard form, we need to multiply and divide the fraction by the conjugate of the denominator as shown below:
63p: 1, 3, 7, 9, 21, 63, p
84: 1, 2, 3, 4, 6, 7, 12, 21, 14, 42
the factor is 21