Answer:
x=-2
y=-5
Step-by-step explanation:
3x-y=-1
-3x+4y=-14
_________
-3y=-15
__. __
-3. -3
y=5
3x-(-5)=-1
3x+5=-1
-5. -5
_______
3x=-6
---. ---
3. 3
x=-2
40n-15 can be broken down by
5(8n-3)
First, add both prices together.
599+299=898
If you are only finding sales tax, you need to multiply 898 and 8 7/8
8 7/8% is equal to 8.875%
898*8.875%=79.6975 or $79.70 extra for sales tax
Step-by-step explanation:
3(x+4) ≤ 36
3x + 12 ≤ 36
3x ≤ 24
x ≤ 8
Answer:
<h3>
f(x) = 4(x - 4)² - 4 </h3>
Step-by-step explanation:
f(x) = a(x - h)² + k - vertex form of the equation of the parabola with vertex (h, k)
so the equation of parabola with the vertex (4, -4) is
f(x) = a(x - 4)² - 4
passes through the point (2, 12) means if x=2 then f(x)=12
12 = a(2 - 4)² - 4
12 +4 = a(-2)² - 4 +4
16 = 4a
a = 4
Therefore the equation (in vertex form) of parabla is:
<u> f(x) = 4(x - 4)² - 4 </u>
