Option 4 is correct i.e. <span>The volume of the box is increasing at a rate of 192 cm^3/min.
</span>Given : Volume of the rectangular box = x²h
where x is edge and h is height.
The edge and the height are varying with time, therefore, we write,x = x(t)
h = h(t)
dh/dt = -3 and we shall calculate when x = 4, dx/dt = 2 and when h=15
V = x²h dV/dt = (2x × dx/dt × h) + (x² × dh/dt) dV/dt = 2×4×2×15 + (4)^2 ×(-3) dV/dt = 240 - 48
dV/dt = 192
Because dV/dt is positive, hence the volume is increasing
If 1 box weighs 7.5 pounds, then we find the weight for 15 boxes with this equation:
15*7.5
Multiply:
112.5
15 boxes weight 112.5 pounds
Answer:
Circumference formula is πr². while we do not have the radius, you do have the diameter, the diameter is the full length of the circle while the radius is half of the circle. So you take 14/2=7 so the new equation is π7² so you would do 7x7 to get 49, then you would do 49 x 3.14 and you'll have 153.86 Centimeters². You'll need to double check this but I hope this helped.
Ok so look get a piece of paper write down the percent is it going up or down we don’t know that but since it’s nothing like clothes you use that but think. Of your problem as like if you went to a store and so clothes were 34 percent off you going to get the original percent and then your doing 450\x ok now I go over 34%\100 it’s always going to be one hundred but since we’re talking about something else here’s your answer your just gonna say the ratio in this problem and your going to use that calculator call Dezmos use the scientific one and it will give you the answer if put 450 then 34%
Answer:
76.2%
Step-by-step explanation:
0.762 = 76.2/100