Answer:
x=10.5
Step-by-step explanation:
think of ratios in terms of this 7/x, 2/3
so when you think of it like that the equation would be 7/x=2/3
After this you use proportions to solve, so you cross multiply
2x=21
Then you finally solve for x
x=10.5
It should be acute because if A and B are complementary then B and A added together should be 90 so 90-30=60 and 60 would be an acute angle
Answer:
No Solution
Step-by-step explanation:
Assuming the lines are absolute value you must get rid of the other numbers first so:
5 |x+7| + 14 = 8
5 |x+7| = -6
and since absolute values can't equal a negative the answer is NO SOLUTION
m<ACB = 65°
m<BCD and m<ACB are supplementary
Sum of supplementary angles = 180
so
m<BCD = 180 - 65
m<BCD = 115
Answer
A. 115
