In this problem it just goes left to right, 1-18+25 = -17+25 = 8
(1-18)+25-17+25=8<span>
</span>When you do addition and subtraction they are reversible so you just go left to right
Answer: (–10, 30)
Step-by-step explanation:
Proportional relationship means that as x increases, y increases and as x decreases, y decreases, and the ratio between them is always the same. The graph of the proportional relationship equation is usually a straight line through the origin.
For this (–10, 30) would form a proportional graph with the point below.
Y=2x^3 is nonlinear. This is a cubic function.
y = x + 5 is linear.
y = sqrt(x-3) is also nonlinear
5x + 5y = 25 is linear. It simplifies to y = -x + 5 if you want it in slope-intercept form
y = x^2 / 2 is nonlinear
Hope this helps
Answer:
Problem 1:
Problem 2:
Problem 3:
The radius is cm.
Problem 4:
The width is 15 cm.
Step-by-step explanation:
Problem 1:
We want to solve for .
Multiply both sides by 3:
Rearrange the multiplication using commutative property:
We want to get by itself so divide both sides by what is being multiplied by which is .
Problem 2:
We want to solve for in .
Multiply both sides by 3:
We want by itself so divide both sides by what is being multiply by; that is divide both sides by .
Problem 3:
The circumference formula for a circle is . We are asked to solve for the radius when the circumference is cm.
Divide both sides by what r is being multiply by; that is divide both sides by :
Reduce fraction:
The radius is cm.
Problem 4:
The perimeter of a rectangle is where is the width and is the length.
We are asked to find w, the width, for when L, the length, is 5, and the perimeter is 40.
So we have this equation to solve for w:
Simplify the 2(5) part:
Subtract both sides by 10:
Divide both sides by 2:
Simplify the fraction:
The width is 15 cm.