y= mx+b
y= -5x+7
-5 is m which is also the slope
7 is b = y - intercept or can be (0,-7)
Answer:
7 is b = y - intercept or can be (0,-7)
Answer:
5 years
Step-by-step explanation:
Interest earned ($) = Principal (amount $ invested) x Interest Rate (as a %) x Time (in years)
500 = 2500(.04)(t)
500 = 100t
t = 5 years
Answer:
C. 20 cm^3
Step-by-step explanation:
Using the equation D=m/v, you would plug in the given mass (227 g) into m and the given density of lead (11.35 g/cm^3). Solving for v=m/D, we find the answer to be 20 cm^3.
Also, you could cancel out all the answers except C because it is the only one in units of volume (1 cm^3 = 1 mL).
(x-y)^2 +4xy = (x+y)^2
FOIL
x^2 -2xy+y^2 +4xy = (x+y)^2 x^2 -2xy
Combine like terms
x^2 +2xy +y^2 = (x+y)^2 x^2 +2xy
Factor
(x+y)^2 = (x+y)^2 (x+y)^2
