Answer:
The average height of a 5-year-old boy is
Step-by-step explanation:
Let
x------> the ages of boys between 2 and 10 years old
y-----> the average heights in centimeters
we have
so
For year-old-boy
substitute in the equation the value of x to find the value of y
Answer:
Step-by-step explanation:
- x² + 6x - 3 = 0
- x² + 2*3*x + 3² - 3 = 3²
- (x + 3)² = 12
- x + 3 = ± √12
- x + 3 = ± 2√3
- x = 2.196, x = -8.196
C is total cost, e is the number of enlargements.
c=10e + 50
Plug in the total cost to find the number of enlargements
180=10e +50
Subtract 50 from both sides
130=10e
Divide each side by 10 and you are left with
13=e
The number of enlargements for $180 is 13.
Hope I helped!
Answer:
A
= 225
π c
m
Step-by-step explanation:
the area of a circle formula with radius
A = π
r
in this case
A
=
π
× 15
A = 225
π c
m