1. A 2. A 3. A 4. A Kind of odd that they all turn out to A.
Answer: It can be any number, x^1=x
Step-by-step explanation: Say we have 5^1. It is 5. No powers added.
plz mark as brainliest
Answer:
45
Step-by-step explanation:
To find the area of any right triangle, meaning a triangle with a right angle, you use 1/2 base x height
So... here the base is 9 and the height is 10
Therefore: 1/2 x (9) x (10)
1/2 x 90
= 45
Answer:
The vertex of the parabola is;
([-1], [3])
Step-by-step explanation:
The given quadratic equation is presented as follows;
x² + 8·y + 2·x - 23 = 0
The equation of the parabola in vertex form is presented as follows;
y = a·(x - h)² + k
Where;
(h, k) = The vertex of the parabola
Therefore, we have;
x² + 8·y + 2·x - 23 = 0
8·y = -x² - 2·x + 23
y = 1/8·(-x² - 2·x + 23)
y = -1/8·(x² + 2·x - 23)
y = -1/8·(x² + 2·x + 1 - 23 - 1) = -1/8·(x² + 2·x + 1 - 24)
y = -1/8·((x + 1)² - 24) = -1/8·(x + 1)² + 3
Therefore, the equation of the parabola in vertex form is y = -1/8·(x + 1)² + 3
Comparing with y = a·(x - h)² + k, we have;
a = -1/8, h = -1, and k = 3
Therefore, the vertex of the parabola, (h, k) = (-1, 3).
