I really don’t know how else to show you but i think this might help.. let me know and i can edit my answer if not :)
slope : -4x
y-intercept : 2
Hello!
To find the surface area of a cylinder you use the equation
SA is surface area
r is radius
h is height
Put in the values you know
Square the number
Times the 9 and 3
Multiply the 2 and 27
Multiply the 2 and 81
Add
The answer is
Hope this helps!
SA=2H(L+W)+LW for open box
20=2H(4+W)+4(W)
distribute
20=8H+2WH+4W
divide both sides by 2
10=4H+WH+2W
solve for 1 variable, pick W
10-4H=WH+2W
10-4H=W(H+2)
(10-4H)/(H+2)=W
V=LWH
subsitute 4 for V, subsitute H for H and (10-4H)/(H+2) for W
V=(4)(H)(10-4H)/(H+2)
V=(40H-16H²)/(H+2)
find max value
take deritivitive of this thing
V'=-16(H²+4H-5)/((H+2)²)
using sign chart
sign changes from positive to negative at H=1
so at H=1
find W
W=(10-4H)/(H+2)
W=2
the dimeionts are
length=4ft
width=2ft
height=1ft
(the volume is 8 cubic feet)
Answer:
See below ↓↓
Step-by-step explanation:
<u>A to B</u>
- Avg. speed = Distance covered / Time taken
- Avg. speed = 200 m / 10 s
- Avg. speed = <u>20 m/s</u>
<u></u>
<u>C to D</u>
- Avg. speed = Distance covered / Time taken
- Avg. speed = (500 - 200) m / (60 - 30) s
- Avg. speed = 300 m / 30 s
- Avg. speed = <u>10 m/s</u>
Step-by-step explanation:
The total pay increases for every hour.
One hour is $8, two hours is $16 hours, etc.
So P = 8h