17. 55° because it says it in the explanation. I assume this is a typo and they meant to ask the measurement of ADC and in that case it would be 130° because angle ADB is 75° and angle BDC is 55°. 75°+55°=130°.

18. 40° because angle PSQ is a right angle which means it's 90°. So 130°-90°=40°.

19. 140° because angle ADB is 120° and angle BDC is 20° so 120°+20°=140°.

20. 125° because again it's in the explanation. But if it's a typo and they meant what is the measurement of PSQ then it is 50° because PSR is 125° and QSR is 75° so 125°-75°=50°.

Hope this helps! :)

5 0

3 years ago

r In who area should he operations be performed 10 me expression (6+2 + x, +, + +, +, x, + +, ix + +,+.+,x Which operation shoul

Ipatiy [6.2K]

To solve problem #1 follow the steps below...

Step 1:Think back to PEMDAS

P=Parentheses
E=Exponents
M=Multiplication
D=Division
A=Addition
S=Subtraction

(Think of M,D as brothers and whichever once comes first in the problem you do.This rule also applies to A,S)

Step 2: Look back to your problem

(6 divided by 2 plus 1) plus 10x2

Step 3: Start with the parentheses

6 divided by 2 plus 1

Step 4: Do the division first

6 divided by 2=3

Step 5:Now the addition

3 plus 1=4

Step 6: Rewrite the problem

4 plus 10x2

Step 7: Do the multiplication

10x2=20

Step 8: Rewrite your problem again

4 plus 20

Step 9: Solve

4 plus 20=24

Step 10: Look back at your work and see what order your operations were done in

.Division
.Addition
.Multiplication
.Addition

Step 11: Compare your order to the choices

Answer: b

I hope this helps and if any false information was given I apologize in advance.

7 0

4 years ago