Answer:
1/2b - 5 (the third one)
Step-by-step explanation:
"Denni is five years less..."
this tells us we will need to be subtracting five, which knocks out the other answers.
"..one-half his brothers age."
since b represents the age of his brother, one half his brothers age is 1/2b
That leaves us with 1/2b - 5
7 is not equal to the others
using the laws of exponents
/ 
= 1 / 
= 
=
Apart from 7 the other 3 all equal
Answer:
The height of this cube-shaped water tank is 35 m.
Step-by-step explanation:
The formula for the volume of a cube of side length s is V = s^3.
Here V = s^3 = 42,875 m^3.
Taking the cube root of both sides, we obtain the side length, s:
s = ∛(42,875 m^3) = 35 m
The height of this cube-shaped water tank is 35 m.
The volume of the pyramid is 
Explanation:
The height of the square pyramid is 18 cm
The base of the square pyramid is 11 cm
The volume of the square pyramid can be determined using the formula,
Substituting 
and 
in the formula, we have,
Simplifying, we have,
Multiplying, we get,
Dividing, we get,
Thus, the volume of the pyramid is
Answer:
84 yards (don't forget to label, as my friend failed a test because of it!)
Hope this helps
Step-by-step explanation:
The total perimeter of the field is 358
The are length and widths...
the length is 95
but since there are two lengths...
its 95*2 which is 190
358-190=168
Since there are two widths...
168/2= 84
