Answer:
12 feet
Step-by-step explanation:
Two buildings have the same total number of heights
The first building has 6 floors each with height h
The second building has a ground floor of 36 feet and 3 other floors each
Since both buildings have the same height then
Height of first building= height of second building
The first step is to calculate the height of the first building
Height of first building = 6h
The height of the second building is
36 + 3h
Therefore the height of each floors can be calculated as follows
6h= 36 + 3h
Collect the like terms
6h-3h = 36
3h= 36
h= 36/3
h= 12
Hence the height of each floors is 12 feet
Answer:
b
Step-by-step explanation:
To solve this problem we need to know the equivalence between yards and inches, that is:
1 yd = 36 inches
Therefore in 8 yd we have:
8(36) = 288
so in 8 yd we have 288 inches
So 8 yd is equal to 288 in
We know that the points at which the parabola intersects the x axis are
(-5,0) and (1,0)
So the extent between these two points would be the base of the triangle
lets find the length of the base using the distance formula
![\sqrt{[(-5-1)^{2}+(0-0)^{2} ]}](https://tex.z-dn.net/?f=%20%5Csqrt%7B%5B%28-5-1%29%5E%7B2%7D%2B%280-0%29%5E%7B2%7D%20%5D%7D%20%20)
the base b=6
We will get the height of the triangle when we put x=0 in the equation
y=a(0+5)(0-1)
y=-5a
so height = -5a (we take +5a since it is the height)
We know that the area of the triangle =
× 6 × (5a) = 12
15a=12
a= 
Answer:
Answer is 12 isnt it
Step-by-step explanation:
12×4=48
48+9=57