Answer:
you mean the decimal point?
Step-by-step explanation:
You will know when you cross the decimal point when multiplying.
Answer:
The factored form of the equation is (x+4)(x-6)=0.
Step-by-step explanation:
Because (x-4)(x+2)=x^2-4x+2x-8=16,
so that means x^2-2x-8=16,
move 16 to the other side,
you get x^2-2x-8-16=0,
simplify,
you get x^2-2x-24=0,
which satisfies (x+4)(x-6)=0 when factored out.
Because (x+4)(x-6)=x^2+4x-6x-24=x^2-2x-24=0.
Answer:
Yes, they are inverse functions.
Step-by-step explanation:
To determine if two functions are inverses of one another, put one in for the x in the other. If the result is f(x) = x, then they are inverses.
f(x) = ![\sqrt[3]{x-5}](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7Bx-5%7D)
f(x) = ![\sqrt[3]{(x^3 + 5)-5}](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B%28x%5E3%20%2B%205%29-5%7D)
f(x) = ![\sqrt[3]{x^3}](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7Bx%5E3%7D)
f(x) = x
So therefore, they are inverse of each other.
1)Write the equation again, but replace ___ with x:
(2y + 4b) + 5 = x + (4b + 5)
2) Eliminate parenthesizes (if there is "-" in front of them, change the sign in front of everything that is inside them; if there is "+" just leave it the same):
2y + 4b + 5 = x + 4b + 5
3) Transfer 4b + 5 from the left side to the right by changing signs into the opposite ones:
2y = x + 4b + 5 - 4b - 5
2y = x
So, the answer will be 2y. Hope this helps!
Answer:
Step-by-step explanation:
The discriminate is going to be the key to this problem.
Givens
a = 5
b = 7
c = 4
Formula
Solution
I have shown all the multiplication signs because it is clearer that way. You are going to have to figure out how to format the answer. If my answer is not among those you have, could you please give me the choices?
x1 = -0.7 + 0.1 sqrt(31) i
x2 = -0.7 - 0.1 sqrt(31) i
