Answer:
1. 7
2.-5
4.20
5.1
6.1
7./8.2 variables
9.3variables
10. 25
11.0
12. 1
13. 2
14. 3
15. 5
16. -5
17. 3
18.
19 .28p
hope this helps u
Step-by-step explanation:
I am unable to answer some questions
Answer:
x=4.5,y=5,z=9
Step-by-step explanation:
First, we use the pythagorean theorem in the lower right triangle (with sides 4,x,6) and find x^2+4^2=6^2 and therefore x^2=6^2-4^2=20 so x=√20 which is approximately 4.5.
Also, we can see from the picture that z=y+4, and therefore the only option left is x=4.5,y=5,z=9.
Answer:
.
Step-by-step explanation:
Angles 8 and 15 are supplementary.
So first write out the expression:

take two 10's from the top to cancel with the two 10's on the bottom.
3.9/1.3 is 3.
The answer is 3*10^3