Answer: 7.84 is the answer
Answer:
y = -6x + 9/4
Step-by-step explanation:
y = mx + b
m= -6
b 9/4
13. linear functions alwasys have x^1 as highest exonent for placeholder
we see that in D, we have 6x^2 which is quadratic, not linear
D is ansre
15. isolate y
emember you can do anything to an equaiton as long as you do it to both sides
12x-4y=20
add 4y to both sides
12x+4y-4y=20+4y
12x+0=4y+20
12x=4y+20
minus 20 both sides
12x-20=4y+20-20
12x-20=4y+0
12x-20=4y
divide both sides by 4
12/4x-20/4=4/4y
3x-5=1y
3x-5=y
y=3x-5
why is it not listed, there is an error in the question, report the erre
One is Side Angle Side, and the other is Side, Side, Angle
Answer:
<em>The plane landed after 9.4 minutes.</em>
Step-by-step explanation:
<u>Function Modeling</u>
The initial altitude of a plane arriving at JFK International Airport is 30,000 ft.
It then began its descent at a rate of 3,200 feet per minute.
Let's call t the number of minutes since the descent started. If each minute the plane descends 3,200 feet, then after t minutes it descends 3,200t.
This must be subtracted from the initial altitude, thus the altitude H is written as:
H = 30,000 - 3,200t
When the plane landed, its altitude was H=0, thus:
0 = 30,000 - 3,200t
Adding 3,200t:
3,200t = 30,000
Dividing by 3,200:
t = 30,000/3,200
t = 9.375 minutes
Rounding to the nearest tenth:
The plane landed after 9.4 minutes.
