You can do the opposite, as in multiplying.
9.2× 5.3 = 48.76
48.76 = D
Answer:
(168,12)
Step-by-step explanation:
Substitute x = 10y+48 in the first equation.

We have got the y-value. Our next goal is to find the x-value by <u>substituting</u><u> </u><u>y-value</u><u> </u><u>in</u><u> </u><u>any</u><u> </u><u>given</u><u> </u><u>equations</u><u>.</u><u />
For me, I will be substituting y = 12 in the first equation.

<u>Answer</u><u> </u><u>Check</u>
Substitute both x-value and y-value in both equations.

Our first equation is true for both values.

Our second equation is true for both values.
Thus, the answer is (168, 12)
Answer:
Step-by-step explanation:
The first parabola has vertex (-1, 0) and y-intercept (0, 1).
We plug these values into the given vertex form equation of a parabola:
y - k = a(x - h)^2 becomes
y - 0 = a(x + 1)^2
Next, we subst. the coordinates of the y-intercept (0, 1) into the above, obtaining:
1 = a(0 + 1)^2, and from this we know that a = 1. Thus, the equation of the first parabola is
y = (x + 1)^2
Second parabola: We follow essentially the same approach. Identify the vertex and the two horizontal intercepts. They are:
vertex: (1, 4)
x-intercepts: (-1, 0) and (3, 0)
Subbing these values into y - k = a(x - h)^2, we obtain:
0 - 4 = a(3 - 1)^2, or
-4 = a(2)². This yields a = -1.
Then the desired equation of the parabola is
y - 4 = -(x - 1)^2
We know that
surface area <span>of a three-dimensional figure=2*[area of the base]+perimeter of the base*height
therefore
the answer is false</span>