Answer:
=-4
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
Since we already know what -y is we can use that to find y.
y = -5x -21.
Let's substitute that in the bottom equation
-4x -5x - 21 = 6.
Simplify.
-9x = 27.
x = -3
Let's solve using
y = -5x -21.
to find y.
y = -5(-3) - 21
y = 15 - 21
y = -6.
There you have it!
x = -3, y = -6
So.. The correct answer choice is D
Answer:
about 4.52
Step-by-step explanation:
Since pi times radius squared is the formula for area, you would first divide 64 by 3.14 to get about 20.4. Then since you square the radius, you would do the opposite and find the square root which is about 4.52.
Answer:
1
Step-by-step explanation:
We pick two points on the line and use the slope formula
Two points ( 0,2) and ( 1,3)
m = ( y2-y1) / ( x2-x1)
= ( 3-2) /( 1-0)
= 1 /1
= 1