Answer:
5
Step-by-step explanation:
Answer:
8 feet
Step-by-step explanation:
Given data
Area= 64 square feet
Base= x feet
Height= x+8 feet
The expression for the area
A= 1/2b*h
substitute
64= 1/2*x*(x+8)
64= 1/2*x^2+8x
64= (x^2+8x)/2
cross multiply
64*2= x^2+8x
128= x^2+8x
rearrange
x^2+8x-128= 0
using the quadratic formula
a=1
b=8
c=-128
x= -b±√b^2-4ac/2a
x= -1±√8^2-4*1*-128/2*1
simplifying
x= 8
x=-16
Hence the height of the base is
h= 8 feet
It is C trust me I’m doing the same thing
Answer:
2/5
Step-by-step explanation:
To figure out which is larger, you must first find the common denominator.
Multiply the denominators to find a common denominator:
8 x 5 = 40
Then, cross-multiply to find the new numerators:
2 x 8 = 16 3 x 5 = 15
You now have:
2/5 = 16/40 and 3/8 = 15/40
So, 2/5 is larger!
I’m not sure where the question is here, but if it is a true or false, the pygmies do exchange with neighboring villages. They are hunters and gatherers, so rather than planting food, they gather. So this statement would be true
