Answer:
vertex = (- 10, - 10 )
Step-by-step explanation:
The equation of a quadratic in vertex form is
y = a(x - h)² + k
where (h, k ) are the coordinates of the vertex and a is a multiplier
To obtain this form use the method of completing the square.
Given
h(x) = x² + 20x + 90
add/subtract ( half the coefficient of the x- term )²
h(x) = x² + 2(10)x + 100 - 100 + 90
= (x + 10)² - 10 ← in vertex form
with (h, k ) = (- 10, - 10 )
Multiply your monthly by 12
2543 x 12 = 30,516
The answer for 338 to the nearest ten is 340
Answer:
1day=2.5km
7days=?
<u>7</u><u>×</u><u>2</u><u>.</u><u>5</u>
1
=17.5km
1km=1000m
27.5km=?
=27500m
Answer:
x=-12
Step-by-step explanation:
AC=AB+BC
x+29=2x+33+8
x-2x=33+8-29
-x=12
x=-12
