Step-by-step explanation:
Equation of line in slope point form is given as:
Answer:
Step-by-step explanation:
Each equation is in vertex form, so you can easily determine the number of real roots. The leading coefficient tells you whether the parabola opens upward (positive) or downward (negative).
y = a(x -h)^2 +k
has leading coefficient "a" and vertex (h, k).
__
<u>f(x) = 1/3(x +5)^2 +7</u>
vertex: (-5, 7), opens downward
The vertex is above the x-axis, so there are two real roots.
__
<u>f(x) = -5(x -3)^2</u>
vertex: (3, 0), opens downward
The vertex is on the x-axis, so there is one real root.
To estimate, you would usually round to a significant figure
so, 20* 70=1400
The actual answer is 1521, so we know we are close
Answer:
Plug in 1ft/12in
This will give you 36 ft
Step-by-step explanation:
After plugging in, multiply across and simplify/divide and you get your answer
Answer:
72
Step-by-step explanation:
To find the area of a equilateral triangle you must multiply the side length's of the triangle and then divide it by 2 because when you multiply the side length's it is giving you the area of a square which is 2x the triangle. That is why you divide.
Answer:72
