Answer:
Part 1) or
Part 2) or
Part 3) or
Step-by-step explanation:
Part 1) we have
Rewrite
Multiply by 100 both numerator and denominator
Simplify
or
Part 2) we have
Multiply the term 18/7 by 4 both numerator and denominator
substitute
simplify
Rewrite
Simplify
or
Part 3) we have
Remember that
substitute
Simplify
Divide by 1.2 both numbers
Rewrite
Multiply by 10 both numerator and denominator
Simplify
or
Answer:
(-3, 3)
Explanation:
y = 1/3x + 2
-2x + 3y = 9
-2x + 3(1/3x + 2)
-2x + x + 6 = 9
-x + 6 = 9
-x = 3 —> x = -3
y = 1/3(3) + 2
y = 1 + 2
y = 3
The expression is (2x2) + 5 yw
Answer:
1436.76 in.^3
Step-by-step explanation:
This question means to find the volume of a sphere with a diameter of 14 inches. The formula for the volume of a sphere is 4/3πr^3, so we need to find the radius, which is half the diameter. Half of the diameter is 7 inches, so now we can plug in our values to find the volume is about 1436.76 cubic inches.