Answer:
a = 30
b = 40
C
Step-by-step explanation:
This requires that you use a proportion.
a / (a + 15) = 40 / 60
The small triangle's sides are in proportion to the large triangles sides.
Reduce the right. Divide top and bottom by 20
a/(a + 15) = 40/20 // 60/20
a/(a + 15) = 2/3
Cross multiply
3a = 2(a + 15) Remove the brackets on the right.
3a = 2a + 30
Subtract 2a from both sides
3a-2a = 30
a = 30
Find B
b is done exactly the same way.
b/(b+20) = 2/3
3b = 2b + 40
3b - 2b = 40
b = 40
I'm assuming the given problem is (9+6i) - (1+3i)
If that assumption is true, then this is what the steps look like
(9+6i) - (1+3i)
9+6i - 1-3i
(9-1)+(6i-3i)
(9-1)+(6-3)i
8+3i
<h3>Answer: 8+3i</h3>
Answer:
If that dot in the middle is the middle of the circle, then that should mean the center is 5 away from both of those lines. Therefore, I believe x would 9/2 or 4.5
your answer to that division problem is 35.9
