Answer:
A) x = 2, x = 7
Step-by-step explanation:
x^2 + 14 = 9x
Subtract 9x from each side
x^2-9x + 14 = 9x-9x
x^2-9x + 14 = 0
What 2 numbers multiply to 14 and add to -9
-7*-2 = 14
-7+-2 = -9
(x-7)(x-2) = 0
Using the zero product property
x-7 = 0 x-2 =0
x=7 x=2
Answer:
y=0
Step-by-step explanation:
8^3 8^-5 8^y= 8^-2
We know that a^b * a^c = a^(b+c)
8^(3-5+y) = 8^-2
The bases are the same so the exponents must be the same
-2+y = -2
y = 0
300% as a decimal is 3.0 as a fraction it is 3
0.5% as a decimal is 0.005 and as a fraction 1/200
Answer:
Step-by-step explanation:
Bring out the common factor of <em>4 </em>from the equation
9 and 225 share a common factor of 9. Factor the 9 out