Answer:
C, or 18.0
Step-by-step explanation:
The SAS theorem provides that the area is 17.97, which rounds up to 18.0, giving you C as the answer. The other two are far too high for the given values.
Answer:
all except the last one
Step-by-step explanation:
If solving for x:
Because both equations are equal to Y, you can set both equations equal to each other:
5x+1=4x+8
Then it's a matter of simplification (subtract the 4x to the left side and subtract the 1 over to the right):
x=7
If solving for Y:
Plug x=7 into either equation and solve:
Y=4(7)+8
Y=36
Answer:
y = 3
Step-by-step explanation:
Use the slope formula:
y2 - y1
m = ------------- , which here becomes
x2 - x1
y - 5 -1
m = ------------- = -----
8 - (-2) 5
Solve this for x. Cross multiplication yields:
5y - 25 = -1(10) = -10
Then 5y = 15, and y = 3
