Scale factor is unit rate :)
Principal = irt
t = Principal /(ir)
hope helped
Answer:
x^2 +3x -504
Step-by-step explanation:
Sort of do what you'd do to solve but in reverse. You need 21 for a zero, so the binomial factor would be (x-21) since if you set that = to zero you'd get 21. Same for -24. The binomial factor would be (x+24) since that would give you -24. Now that you have the two binomials, you can just multiply them and get the quadratic. :)
Since the ball will reach the maximum height of 18 meters after 1 second, meaning after 1 second it will start to go down. So will expect that the height will be lower than 18 m after 1.5 s.
f(x) = –10x2 + 20x + 8
f(x) = –10(1.5^2) + 20(1.5) + 8
f(x) = 15.5 m
Answer:
x^2 + 2x^2 + 1 = x^4 + 2x^2 +1
Step-by-step explanation:
pythagorean theorem
a^2 + b^2 = c^2 where a and b are the legs
substitute what we know
(x^2 -1)^2 + (2x)^2 = (x^2+1)^2
FOIL
(x^2 -1)^2 = (x^2-1 ) (x^2-1) = x^4 -x^2 - x^2 +1 = x^4 -2x^2 +1
(2x)^2 = 4x^2
(x^2+1)^2 = (x^2+1 ) (x^2+1) = x^4 +x^2 +x^2 +1= x^4 + 2x^2 +1
substitute these back in
x^4 -2x^2 +1 +4x^2 = x^4 + 2x^2 +1
combine like terms
x^2 + 2x^2 + 1 = x^4 + 2x^2 +1
Since the left and right side are equal, this is a right triangle