Answer:
25
Step-by-step explanation:
p=n+20
p=5n
5n=n+20
n=5
p=20+5
p=25
Right Angle - 90 Degrees
A+B+C = 180
90+B+51 = 180
141 + B = 180
B = 39
Answer:
Because it is a rectangle, the area is expressed as A = xy, or length times width.
Because it is next to the river, he only needs to fence three sides, so F = x + 2y.
Knowing the amount of fencing available is 7500m, we get:
7500 = x + 2y solve for x
x = 7500 - 2y substitute into the area equation
A = (7500 - 2y)y distribute
A = -2y2 +7500y
You can see that this is a parabola which opens down, meaning that the point of maximum area will be at the vertex, y = -b/2a = -7500/[2(-2)] = 1875
x = 7500 - 2(1875) = 3750
A = 3750(1875) = 7,031,250 m2
Step-by-step explanation:
m(w) = 8w + 17 looks like the best answer choice for me
Answer:
-8.5
Step-by-step explanation:
(2.5)(-3.4)= -8.5
