Answer:
26
Step-by-step explanation:
Complementary angles add to 90 degrees
a+b = 90
64+b = 90
Subtract 64 from each side
64-64 +b = 90-64
b = 26
The value is 21 Because three represents those to variables which both equal to 21.
Hello,
First, you must understand that
(f-g)(x) means f(x)-g(x) it is the difference of two functions :
f(x)=2x+4 and g(x)=3x-7
f(5)=2*5+4=10+4=14
g(5)=3*5-7=15-7=8
So, (f-g)(5)= f(5)-g(5)=14-8<u>=6</u>
Answer A: none of the choices are correct.
An other way to do it:
(f-g)(x)=f(x)-g(x)=2x+4-(3x-7)= 2x-3x+4+7=-x+11
if x= 5 then (f-g)(5)=-5+11<u>=6</u>
20+x>70
-20. -20. on both sides to even it out
x>50 is the answer
Answer:
(C) 102 degrees
Step-by-step explanation:
All angles in a triangle must add up to 180 degrees. If you know 2 angles, you must know the last one by subtracting the other two from 180. If you subtract 50 and 28, the two known angles in this situation, from 180, you get 102. Therefor, the last angle must be 102 degrees, or choice C.
