Answer:
A = 62x^2
Step-by-step explanation:
This rect. prism has 6 faces, stemming from two each of the areas of the top, the end and the side of the prism.
top surface area: (2x)(3x) = 6x^2
end surface area: (2x)(5x) = 10x^2
side surface area: (3x)(5x) = 15x^2
Total surface area: A = 2(6x^2 + 10x^2 + 15x^2)
or: A = 2(31x^2) = 62x^2
It's D. The curve intersects the y-axis at (0,10).
Answer:
SA ≈ 804.25
Step-by-step explanation:
SA =2πrh+2πr2
=2·π·4·28+2·π·42
≈804.24772
r (radius) is half of a diamater
Slope:
2y = 24 + 4x
y = 12 + 2x
Slope = 2
X-intercept:
-4x + 2(0) = 24
-4x = 24
x = -6
(-6, 0)
Y-intercept:
-4(0) + 2y = 24
2y = 24
y = 12
(0, 12)
It is 5 and you dont lnow it because of the explanau
