Answer:
41 miles per gallon
Step-by-step explanation:
41 miles ÷ 1
1 gallons ÷ 1
41 miles
1 gallons
41 miles
gallon
41 miles per gallon
*Every number divided or multiplied
by 1 is the same number (1÷1=1 / 2÷1=2)*
Answer:
5 cm
Step-by-step explanation:
Given a semicircle with perimeter 25.71 cm, we are required to find the radius of the circle.
Circumference of a Semicircle
=Length of the Circular part+Length of the diameter
It reflects across the x axis
Answer:
6.4
Step-by-step explanation:
the discriminant b^2 - 4ac when the equation is in the form of ax^2 +bx+c=0
13x^2-16x = x^2 -x
we need to get in it the standard form
subtract x^2 from each side
12x^2 -16x = -x
add x to each side
12x^2 -15x = 0
12x^2 -15x -0 =0
a=12 b=-15 c=0
b^2 -4ac
the discriminant = b^2
b^2 = (-15)2 = 225
