Answer:
y + 1 = 1/2 (x - 3)
Step-by-step explanation:
Point-slope form of an equation is a shortcut, fill-in-the-blank way to write the equation of a line. All you need is slope (usually symbolized with an m) and a point (any point on the line)
Here's Point-slope:
y - Y = m (x - X)
The slope they gave you is 1/2, put that in for the m.
And also fill in 3 for the X and -1 for the Y. Because a point is (X,Y)
Just leave the first y as a y, right there. And leave the first x in the parentheses as an x. They are variables in the equation. They stay letters.
y - -1 = 1/2 (x - 3)
Simplify.
y + 1 = 1/2 (x - 3)
Minus a negative is the same as plus a positive, that's what happened there on the left. Also, when you write it, make sure the 1/2 is beside the parentheses on the right. The parentheses should not be on the bottom with the 2, but just beside the fraction.
Answer:
A = 244.92 cm² or 78π
Step-by-step explanation:
A = πrl
r = 6 cm
l = 13 cm
π ≈ 3.14 cm
A = 3.14 × 6 × 13
A = 3.14 × 78
A = 244.92 cm²
<span>Your answer seems perfectly logical in the world of math. Unfortunately, the world of retail sales calculates markup percentage differently. If a remember correctly, the markup percentage is based upon the final price. Try the following: X is the final selling price. So X minus 70% of X is equal to $66.00 : X-(0.7X)=66, 0.3X=66, 66/0.3=X, X=220
Was $220.00 one possible answer?</span>
