Answer:
y= -3 -6x/5
Step-by-step explanation:
6x+5y=-15
-6x -6x
-----------------------------------
5y = -15 - 6x
divide both sides by 5
5y/5= -15/5 - 6x/5
y= -3 -6x/5
Answer:
0
Step-by-step explanation:
5(x+3) replace x with -3
5(-3+3)
5(0)
0
CosA=(21^2+23^2-25^2)/2*21*23
cosA=345/966
A=cos^-1(345/966)
A=69.08
-3 is the integer Phillip wrote
Answer: part a.) c =2A/d
Part b.) d = 7
Part C The diagonals are each 8
Step-by-step explanation: part b:
35= 10d/2 70= 10d. 7 =d
Part c 32= 2c²
64 = c²
√64 = √c²
c = 8