Add 8.1 to both sides to find x!
hope this helps :-)
Answer:
7
Step-by-step explanation:
When you match the form
... ax² + bx + c = 0
to the equation
... 3x² + 5x + 7 = 0
it is reasonable to conclude that ...
... a = 3, b = 5, c = 7.
_____
The question presumes you are familiar with the form
... ax² +bx +c = 0
which is often used as the representation of a general quadratic equation. This lets us use a, b, and c instead of specific numbers, to talk about ways of factoring, graphing, or solving equations like this.
Perimeter = 2L + 2W
Perimeter = 2(4x^2) + 2(y^2)
Perimeter = 8x^2 + 2y^2
x^2 - 7x^2 = -6x^2
-3x - -2x = -3x +2x = -x
8 - -1 = 8+1 = 9
Answer = -6x^2 -x + 9
9x^2 -4x - 3x^2 -2x
9x^2 - 3x^2 = 6x^2
-4x - -2x = -4x +2x = -2x
Answer = 6x^2 -2x
Answer: f(x)=10+2x
Step-by-step explanation: x = the number of years. 10 represents the starting length . please tell me if i was right
<em>Answer:</em>
<em>1. 48°</em>
<em>2. (may be wrong) 42°</em>
<em>3. 109°</em>
<em>4. 30°</em>
<em>9. 180°</em>
<em>10. (may be wrong) 21°</em>
<em>11. 70°</em>
<em>12. 61°</em>
