Answer:
x = 6
Step-by-step explanation:
Step 1: Write equation
4(2x + 3) = 10x
Step 2: Solve for <em>x</em>
For the length I think you meant 32, and if you did it is $14.40
If not and you meant length of 2 it is $0.90
9
Simply plug -3 in for x.
-2(-3)^2-7(-3)+6
(-3)^2=9
9*-2= -18
-7*-3=21
-18+21=3
3+6=9
36
x^2 + 12 x = 2
In order to complete the square we need to add ( b/2)^2 to each side where b is the coefficient of the x term
b=12
12/2 = 6
6^2 = 36
We need to add 36 to each side
5,10,15,20,25,30,35,40,45,50,55,60,65,70,75,80,85,90,95,100,105,110,115,120,125,130,135,140,145,150,155,160,165,170,175,180,185,190,195,200,205,210,215,220,225,230,235,240,245
b=-0.0019a + 215
at 2500 ft, b=210.25 degrees F
First find the slope. a=altitude, b = temperature
slope is b2-b1 / a2-a1
points are (8200, 199.42) and (4700, 206.07)
(206.07 - 199.42) / (4700-8200)
= 6.65/ -3500
= - 0.0019
we have b = -0.0019a + intercept
plug in a point to find intercept
199.42 = -0.0019*8200 + intercept
intercept = 199.42 + 15.58 = 215
at a=2500 ft, substitute into equation
b= -0.0019*2500 + 215
= -4.75 + 215
= 210.25 degrees F
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