Answer:
i think you got them right
Step-by-step explanation:
So what you would do is 8/5 + 4 x 7 = 26.9
then you round it to 30
f(4)= 4^2 - 1 = 15
g(f(4)) = g(15) = 2(15) = 30
Hope this helps!
C is 70. and a triangle is always equal to 180. add 2g and 9g together to find g which is 11 g. 110 is when we subtract 70 from 180. 110/11 g equals g is 10. so a is 20. b is 90. acb is 180
Answer:
- 43
Step-by-step explanation:
Expression: (3m+2n−6) and (−4−6m+7n)
n= -2 and m=5
Before inserting the values, let's add both expressions.
(3m+2n−6) + (−4−6m+7n)
3m+2n−6 −4 − 6m + 7n
-3m + 9n - 10
Inserting the values;
-3(5) + 9(-2) - 10
-15 - 18 -10
- 43