Answer:
D.3.5
Step-by-step explanation:
4x+2y=10(given)
2x+y=5
y=5-2x-----(1)
y=2x-1------(2)(given)
Since the left side of the equations are the the same,
5-2x=2x-1
4x=6
x=1.5
Sub x=1.5 into eq(1),
y = 5-2(1.5) = 5-3 = 2
so, x+y = 1.5+2 = 3.5
If you're familiar with the quadratic equation
![\frac{ -b \pm \sqrt{b^2-4ac}}{2a}](https://tex.z-dn.net/?f=%5Cfrac%7B%20-b%20%5Cpm%20%5Csqrt%7Bb%5E2-4ac%7D%7D%7B2a%7D)
well,
![\frac{ -b}{2a}](https://tex.z-dn.net/?f=%5Cfrac%7B%20-b%7D%7B2a%7D%20)
is the x component of the vertex, in your case, the vertex is the highest point
figure out what t is at the highest point, and then substitute that back into the equation in order to determine height
x=t in this problem
Answer:
760
Step-by-step explanation:
A decimal is the dot that separates the whole numbers from the numbers LESS THAN one.
Answer=A
-Steel jelly