Slope of the line
(8-6)/(2-4)
2/-2
-1
General equation of the line
y = mx + c
m=-1
so
y = -x + c
if it passes through (2,8)
8 = (-1*2) + c
8 = -2 + c
c = 10
so the equation is
y = -x + 10
Question 7: Choose the correct simplification of the expression (3x − 6)(2x2 − 4x − 5)
Answer:
7. 6x³ - 12x² + 12x + 15
Step-by-step explanation:
(3x-6)(2x² - 4x - 5)
3x • 2x² = 6x³
3x • -4x = -12x²
3x • -5 = -15
-6 • 2x² = -12x²
-6 • -4x = 24x
-6 • -5 = 30
combine terms
6x³ - 12x² - 15 - 12x² + 24x + 30
combine like terms
6x³ - 24x² + 24x + 15
hope this helps :)
in the future, only ask one question per brainly submission. thanks!
Answer:
Kelly earns more.
Step-by-step explanation:
Find how much Luna makes first.
24hx8days=192 hours
Then put the 192 hours into groups of 4.
192h/4h=48
Now, we take 48 x 500 to find how much Luna makes.
48x$500=$24000
Now, we have found how much Luna makes. Now, we find how much Kelly makes.
24hx10d=240h
Then put the 240 hours in groups of three.
240h/3h=80
Now, we take 80x$490
80x$490=$32900
(disclaimer: This method is what i use, i always come up with them takes me super long)
Answer:
$17,480 per year.
Step-by-step explanation:
Amount earned per hour = $8.74
If a person works for 40 hours every week for 50 weeks in a year, number of hours worked in a year =
Estimated amount earned per year by the person =
= $17,480 per year.