Answer:
46^2+b-2/4b+5
2116+b-2/4b+5
=2114+b/4b+5
Step-by-step explanation:
28 * 1.5 = 42
3 * 1.5 = 4.5
She would run 4.5 miles in 42 minuets.
Answer:
x =
Step-by-step explanation:
Given
ax + 3x = bx + 5
Collect terms in x on the left side by subtracting bx from both sides
ax + 3x - bx = 5 ( factor out x on the left side )
x(a + 3 - b) = 5 ( divide both sides by (a + 3 - b ))
x =
Answer: Option C
Step-by-step explanation:
The graph is of the quadratic equation is a parabola.
The parabola intercepts the x-axis when .
Then, you need to substitute into the equation:
Factor the quadratic equation: find two number that when you add them you get 2 that when you multiply them you get -8. In this case these numbers are -2 and 4. Then:
Therefore, the x-intercepts are:
(-4,0) and (2,0)
Solution for 1/5(5x+12)=18 equation:
<span>x in (-oo:+oo)
(1/5)*(5*x+12) = 18 // - 18
(1/5)*(5*x+12)-18 = 0
1/5*(5*x+12)-18 = 0
1/5*(5*x+12)-18 = 0
x-78/5 = 0
x-78/5 = 0
x-78/5 = 0 // + 78/5
x = 78/5
x = 78/5
</span>