Answer:
(x + 9) = 5
Subtract 9 from both sides
x = -4
There is your simplified answer
Step-by-step explanation:
Hope this helps!!! Have a great day!
Answer:
y = x² - 4x + 12
Step-by-step explanation:
Parabolas have two equation forms; namely the standard and vertex forms.
In the standard form, y = ax2 + bx + c, where a, b and c are constants.
A parabolic equation resembles a classic quadratic equation.
Therefore;
y= (x-2)² + 8
we expand (x-2)²
(x-2)² = x² -4x +4
Thus;
y = x² -4x +4 + 8; simplify;
<u>y = x² - 4x + 12</u>
Answer:
x = -3
y = -6
Step-by-step explanation:
![y = 6 + 4x \\ - 5x - (6 + 4x) = 21 \\ - 9x - 6 = 21 \\ - 9x = 27 \\ x = - 3 \\ y = 6 + (4 \times - 3) = - 6](https://tex.z-dn.net/?f=y%20%3D%206%20%2B%204x%20%5C%5C%20%20-%205x%20-%20%286%20%2B%204x%29%20%3D%2021%20%5C%5C%20%20-%209x%20-%206%20%3D%2021%20%20%5C%5C%20%20-%209x%20%3D%2027%20%5C%5C%20x%20%3D%20%20-%203%20%5C%5C%20y%20%3D%206%20%2B%20%284%20%5Ctimes%20%20-%203%29%20%3D%20%20-%206)
M- number of magazines
b- number of books
m*3,95 + b*8,95 = 47,65
or in other way: 3,95m + 8,95b=47,65
Answer:
12 and 5 inches since squaring them would equal 144+25, which is 169, and ✓169=13. the two legs have to equal the hypotenuse when combined to be a right triangle.