1. Plug in -3 for a
14-(-3)^2
14-9
5
Final answer: 5
2. 15 more than r=15+r (notice the keyword more) equals 61
Final answer: r+15=61
Just add all of them up the sides
Answer:
a
Step-by-step explanation:
solve for y in one equation
2x + y = -4
y = -4 - 2x
plug y into the other equation
5x + 3y = -6
5x + 3(-4 - 2x) = -6
5x -12 -6x = -6
-x - 12 = -6
-x = 6
x = -6
plug x into the equation to find y
y = -4 - 2x
y = -4 - 2(-6)
y = 8
ordered pair: (-6,8)
The arc length is a quarter of the circumference of the full circle, so 2πr/4.
The straight sides are both radii, so each length r.
Total perimeter
p = 2πr/4 + r + r = r(π/2 + 2)
We put in r=2, π=3.14 and get
p = (2(3.14/2 + 2)) = 3.14 + 4 = 7.14
Answer: 7.14 km
Answer:
Step-by-step explanation:
uh oh whyyyy??????!!!!!!!!!!!!!
