Answer:
x = - 2
Step-by-step explanation:
The equation of the axis of symmetry is a vertical line with equation
x = c
where c is the value of the x- coordinate of the vertex
The x- coordinate of the vertex is
x = - 
Given
y = 2x² + 8x - 1
with a = 2 and b = 8 , then
x = - 
= - 2
x = - 2 is the equation of the axis of symmetry
The correlation coefficient is A. 0.438.
Answer:
B. Less than a day
Step-by-step explanation:
From the question, the circuit board manufacturer produces 2000 board per hour.
Let x be the number of hours it will take to produce 16500 boards .
That’s
2000 boards = 1 hour
16500 boards = x hour
Cross multiply
xhour x 2000 = 1 x 16500
x hour = 16500/2000
x hour = 8.25 hours
8.25 hours is less than a day
Answer:
First one:
Linearly, because the table shows that the orchids increased by the same amount each month
Step-by-step explanation:
Let y be the no. of Orchids and x be the no. of months
y = 1.4x + 9.6
A) 150% of the original price is the increased price.
B) 66.66% of the increased price is the original price.
<u>Step-by-step explanation:</u>
Original price = $300
Increased price= $450
A) the increased price = 450
Percent of the increased price = (450/300) 100
= 150%
150% of the original price is the increased price.
B) percent of the original price= (300/450) 100
= 66.66%
66.66% of the increased price is the original price.
