Answer:
A) x + 6 = 16
Step-by-step explanation:
Answer:
or 
Step-by-step explanation:
The surface area of a sphere is:

Where r is the radius of the sphere
In this case we know that 
So

We solve the equation for r

Now we know the radius of the sphere.
The volume of a sphere is:

We substitute the value of the radius in the formula


Answer:
48 months
Step-by-step explanation:
Cost of car = RM12,750
interest charged = 4% = 0.04
total interest paid = RM1,041.25
Now,
Using the Constant Ratio formula
r =
here,
i is the interest paid
P is the principle
n is the number of monthly installments
r is the interest rate
on substituting the respective values, we get
0.04 =
or
n + 1 = 49
or
n = 48 months
Yes if it’s less than 90 it’s an acute but yes 90 is a right angle