Answer:
Liz
Step-by-step explanation:
lets make all speeds ft/1sec
Ron 8ft/1sec
Liz 104ft/7sec : 104/7=
14.8571428571 ft/1 sec
Katie
1 mile = 5280ft
5280ft/526sec
5280/526=
10.0380228137ft/1 sec
Emily,
1 min= 60 sec
835ft/60 sec
835/60=
13.9166666667 ft/sec
now, lets order from least to greatest
R:8ft/1sec, K:10.0380228137ft/1 sec,
E:13.9166666667 ft/sec, L:14.8571428571 ft/1 sec
Liz's speed is fastest
4 minutes 34 seconds will takes to empty the tank, if the starts completely full and oil drained at a rate of 2.5
per minute.
Step-by-step explanation:
The given is,
Tank is shaped like a cylinder that is 3 ft long with a diameter of 2.2 ft.
Oil drained at a rate of 2.5
per minute.
Step:1
Time taken to dry the oil tank is,
T =
....................................(1)
Step:2
Volume of the oil is,
.................................................(2)
Where, r - Radius of Cylinder

r = 1.1 ft
From eqn (1),
V =
×
× 3
= 11.40398 
Step:3
From equation (1)
=
= 4.56
= 4.56 minutes
T = 4 minutes 34 seconds
Result:
Time taken to dry the oil tank is 4 minutes 34 seconds, if a cylinder is 3 ft long with a diameter of 2.2 ft and oil is drained at a rate of 2.5ft^3 per minute.
<span>4x^2-4x-120
=4(x^2 - x - 30)
=4(x-6)(x+5)
answer
</span><span>B.x-6</span>
<h2>
Answer:</h2>
Step 1: We need to covert the current equation to <u><em>slope-intercept form*.</em></u>
<u><em></em></u>
<u><em></em></u>
Step 2: Now that we have our equation in slope-intercept form, we can determine the perpendicular slope of the line.

Our new slope is now <u><em>-5</em></u>.
*Slope-intercept form: <em>y = mx + b</em>
<h3><em>-2x (to the power of 4) + 10x (to the power of 3) - 21x (to the power of 2) +19x -4</em></h3><h3><em /></h3><h3><em>i didn’t know how to type the powers sorry!</em></h3>