Answer:
Step-by-step explanation:
it is your first choice
-4.4+3.6
1.6x
-0.5
x
Step-by-step explanation:
x+50%x=30
150%=30
1.5x=30
x=20
B!!!
14, 48, 50
These lengths are double the Pythagorean triple of 7, 24, 25. A triangle with side lengths that are a Pythagorean triple will be right angled.
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 )