Answer: See explanation
Step-by-step explanation:
Total number of text messages = 800
Amount used by Tommy and Mary = 1/2 × 800 = 400
Number of messages uses by Jack and Stefanie = 240
The expression to find the number of messages Cathy uses will be:
= 800 - (1/2 × 800) - 240
Since the expression is 800 - (1/2 × 800) - 240, the number of messages that Cathy will use will be:
= 800 - (1/2 × 800) - 240
= 800 - 400 - 240
= 160 messages
For this case the vertex of the parabola is the point at which the parabola presents a minimum.
The parabola presents a minimum in this case, because the parabola opens upwards.
The vertex is then a minimum.
The vertex of the function is located in the following ordered pair:
(x, y) = (1, -1)
Answer:
(x, y) = (1, -1)
minimum
Option A
Move the decimal 6 times to the right (when it's negative) and make sure to put 0's.
Answer: 3582000.
:)
Answer:
y = 3*(x^2) + 9x -30
Step-by-step explanation:
y=3(x+5)(x-2)
y = (3*x + 3*5) * (x - 2)
y = (3*x + 15) * (x - 2)
y = 3*x*x + 3*x*(-2) + 15*x + 15*(-2)
y = 3*(x^2) - 6x + 15x - 30
y = 3*(x^2) + 9x -30
Answer:
-6
Step-by-step explanation:
