Answer:
5x + 13
Step-by-step explanation:
The 2 binomials in algebraic form are
2x + 8 and 3x + 5
Summing them
2x + 8 + 3x + 5 ← collect like terms
(2x + 3x) + (8 + 5)
= 5x + 13
39 square feet
6.25 squared is 39.0625
Answer:
B
Step-by-step explanation:
Answer:864
Step-by-step explanation:
36*24=864
Answer:
8:27
Step-by-step explanation:
1 way to do it is...
The volume of a sphere is 4/3*pi*r^3. Plugging in 2 and 3 in for the radii you get the volumes are about 33.51 and 113.1, which is an 8:27 ratio.
Another way to do it is...
The ratio of the radii is 2:3 and a radius is 1-dimensional. The volume, however is 3-dimensional. To get from 1-D to 3-D, you have to cube the numbers. 2^3 is 8 and 3^3 is 27, so the ration is 8:27.