Answer:
-5/4
Step-by-step explanation:
y2 - y1
x2 - x1
________
-2 - 3 = -5
5 - 1 = 4
Slope = -5/4
Answer:
87
Step-by-step explanation:
A negative times a negative always equals a positive, and 10 times anything is just moving the decimal point to the right once, so 8.7 becomes 87.0
Answer: Its the first choice
Step-by-step explanation:
Answer:
Step-by-step explanation: 3a-5b= 3(7)-5(4)
=21-20
=<u>1</u>
7-3a+5a+15=7-3(7)+5(7)+15
=7-21+35+15
=-14+50
=<u>36</u>
15a^2-17(bc)^2=15(7)^2-17(4)(-3)^2
=105^2-204^2
=210-408
=<u>-198</u>
