Answer:
HCF is 60
Step-by-step explanation:
2|120|. 2|180|
2|60|. 2|90|
2|30|. 3|45|
3|15|. 3|15|
5|5|. 5|5|
1. 1
120= 2×2×2×3×5×1
170=2×2×3×3×5×1
HCF =2×2×3×5×1
=60
x=38.5
cos(x)=
x=38.5(correct to the nearest tenth)
Answer: D
I just took the test and the answer is D.
The solution is a=4
-2(1+5a)=-6(a+3)
-2-10a=-6a-18
+18 +18
16-10a=-6a
+10a +10a
16=4a
divide by 4
4=a
36.