When you have the same base buy different exponents, subtract the exponents:
5-3=2
4.5^2
Answer:
a = -4
Step-by-step explanation:
To solve for 'a', isolate 'a'.
a - 15 = 4a - 3
Subtract '4a' from both sides,
a - 4a -15 = -3
Combine like terms,
-3a - 15 = -3
Add 15 to both sides,
-3a = -3 + 15
-3a = 12
Divide both sides by (-3),
a = 12 ÷ (-3)
Answer:
Step-by-step explanation:
We have that the focus is at (p,0) and that the directrix is x=-p. Take the point (-p,0) of the directrix. We know that the vertex of the parabola is at the middle point ot the line segment that joins the points (p,0) and (-p,0). To get the middle piont, we take the average coordinate by coordinate. That is, the middle point is . The general formula of a parabola of vertex (h,k) that opens to the right or to the left is given by
Where |p| is the distance from the focus to the vertex. If the parabola opens to the right, then p>0 and p<0 otherwise. In our case, h =0=k, so we get that
Answer:
x = 11.7
Step-by-step explanation:
3(x + 3) = 4(4 + 7) => intersecting secant theorem
3(x + 3) = 4(11)
3x + 9 = 44
3x + 9 - 9 = 44 - 9
3x = 35
x = 11.7