Answer:
x = 14
Step-by-step explanation:
10x - 33 + 4x + 17 = 180
14x - 16 = 180
14x = 196
x = 14
The answer is c
2 + 3 = 5
-2 (2) + 4 (3) = 8
-4 + 12 = 8
I have worked that on paper
Let X & Y be the two integers
X+Y=18 Y = 18-X
XY = 80
We can substitute 18-X for Y in the equation XY = 80
X(18-X) = 80
Distributing
18X - X2 = 80
Subtract 80 from both sides so that the equation is equal to 0
-X2 + 18X - 80 = 0
Multiply (or divide by -1 so that the leading coefficient is positive, not negative)
X2 - 18X + 80 = 0
We can factor this quadratic
(X-10)(X-8) = 0
Setting each factor equal to 0 we can solve for X.
X-10 = 0 X-8 = 0
X = 10 X = 8
The two integers are 8 and 10.Answer:
Step-by-step explanation:
Answer:
-63
Step-by-step explanation:
Given the expression:
Using the law of indices, this can be written as:
This shows that the value of A is -63
