1. Volume of the sphere

Choice c
2. Algebra making a token effort to pretend to be geometry. Complementary angles add to 90 degrees.
(x+1) + (x-3)=90
2x -2 = 90
2x = 92
x = 46
Angles x+1=47 and x-3=43
Choice b
3. midpoint A=-5, E=5
The midpoint is just the average of A and E, here zero, point D
choice b
4. I can't really tell if x is supposed to be an angle or a length in this figure; presumably a length. I suppose we're to assume parallel lines; so this makes similar shapes, i.e. a proportionality:


Choice a
a^4+2a+8 because if you combine like terms that is what you get
Are of a parallelogram is base (height)
since the height of this parallelogram is 7(that’s it’s altitude) and the base is 5
the area of this parallelogram is 35 unites sq
Answer:
27x + 45 + 9x
37x + 45
Step-by-step explanation: