Answer:
15
Step-by-step explanation:
Complementary angles add to 90 degrees
8x+27 + 6x-21 = 90
Combine like terms
14x+6 = 90
Subtract 6 from each side
14x+6-6 = 90-6
14x = 84
Divide by 14
14x/14 = 84/14
x=6
We want angle B
B = 6x-21 = 6*6-21 =36-21 = 15
The next number is 31
There is a pattern
3+1=4
4+2=6
6+3=9
9+4=13
13+5=18
18+6=24
24+7=31
You just add the total you got by the next number up.
Hope this helps
The constants in this expression are:
B.) -3 and 2/3
Use pythagorean theory
a^2 + b^2 = c^2
5^2 + 12^2 = 169
square root of 169 is 13
the missing side length is 13 in
My work is shown up above in the picture.
Answer : (-2,1)
My answer is definitely right. I checked my answers by using x and y into the two equations. In other words using the substitution method.