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Serhud [2]
2 years ago
13

(40 points) !!!!!!!URGENT!!!!!! jack and jill both drive the same distance to the beach. by driving 15 mph faster than jack jill

can get there in 3 hours while it takes jack 4 hours. how fast does each of them drive !!!!!!URGENT!!!!!
Mathematics
1 answer:
Maslowich2 years ago
7 0
Jill drives: 75mph
Jack driver 65 mph
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The side of the base of a square prism is decreasing at a rate of 7 kilometers per minute and the height of the prism is increas
Ber [7]

Answer:

dV = - 5.73*10⁹ m³/s

Step-by-step explanation:

Question: What is the rate of change of the volume of the prism at that instant (in cubic meters per second) ?

A function can be dependent on one or more variables. The change in the function due to a change in one o its variables is given by the functions derivative with respect to that variable. For functions that are composed of products of its variables, we may use the product rule to determine its derivative.

The volume of a square prism with base a and height h is given by

V = a²h

When the base and height are changing, we have

dV = 2ah(da/dt) +  a²(dh/dt)

Given

a = 4 Km

h = 9 Km

da/dt = - 7 Km/min

dh/dt = 10 Km/min

we have

dV = 2(4 Km)(9 Km)(- 7 Km/min) +  (4 Km)²(10 Km/min)

⇒   dV = - 504 Km³/min + 160 Km³/min = - 344 Km³/min

⇒   dV = - 5.73*10⁹ m³/s

8 0
3 years ago
The base of a solid S is the region bounded by the parabola x^2=8y
nexus9112 [7]

Step-by-step explanation:Updated answer is the second one

8 0
1 year ago
there ar 2.54 centimeters in 1 inch. how many cantimeter are in 1 foot? in 1 yard explain you reasoning
stellarik [79]
2.54 * 12=30.48, so 30.48 in one foot, then multiply that by three for a yard, so for a yard it is 91.44 .
4 0
3 years ago
Which is greater 1/4 of 12 or 1/3 of 12
Oliga [24]
The answer is 1/3 of 12 its just easy math for me

4 0
2 years ago
Need help plzzzzz !!
Wewaii [24]
They would be perpendicular. hope this helps.
7 0
3 years ago
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