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iragen [17]
3 years ago
7

There are 128 students going on a field trip to pan for gold. If they are going in vans that hold 7 students each, how many vans

are needed? How many students will ride in the van that isn't full?
Mathematics
1 answer:
Viefleur [7K]3 years ago
6 0
128/7 is roughly 18.3 so you would need 19 vans. 18 of them would fit all 7 so you’d have 126 so the last van would fit 2 students meaning it won’t be full
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Find the first partial derivatives of the function f(x,y,z)=4xsin(y−z)
Amanda [17]

Answer:

f_x(x,y,z)=4\sin (y-z)

f_x(x,y,z)=4x\cos (y-z)

f_z(x,y,z)=-4x\cos (y-z)

Step-by-step explanation:

The given function is

f(x,y,z)=4x\sin (y-z)

We need to find first partial derivatives of the function.

Differentiate partially w.r.t. x and y, z are constants.

f_x(x,y,z)=4(1)\sin (y-z)

f_x(x,y,z)=4\sin (y-z)

Differentiate partially w.r.t. y and x, z are constants.

f_y(x,y,z)=4x\cos (y-z)\dfrac{\partial}{\partial y}(y-z)

f_y(x,y,z)=4x\cos (y-z)

Differentiate partially w.r.t. z and x, y are constants.

f_z(x,y,z)=4x\cos (y-z)\dfrac{\partial}{\partial z}(y-z)

f_z(x,y,z)=4x\cos (y-z)(-1)

f_z(x,y,z)=-4x\cos (y-z)

Therefore, the first partial derivatives of the function are f_x(x,y,z)=4\sin (y-z), f_x(x,y,z)=4x\cos (y-z)\text{ and }f_z(x,y,z)=-4x\cos (y-z).

4 0
4 years ago
Josh paid $11.96 for a 2.24 -pound bag of shrimp at one store. The following week, he paid $17.24 for a 3.12 -pound bag at anoth
Whitepunk [10]
The first bag would be 5.34$ and the second would be 5.53$ and the second bag is better cause your only spending 19 more cents for 1.5 more pounds
6 0
3 years ago
Help will give brainliest if right <br><br> BTW the last answer choice is D. 1
Papessa [141]
I think maybe it's A. sorry if that's wrong
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3 years ago
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Andrej [43]
40/100=34/x

40x=3400
x=3400/40
x=85


3 0
3 years ago
Find the volume of the lunch box shown here.
Papessa [141]
Check the picture below.

so the lunchbox is really a semi-circle with a radius of 3, sitting on top of a square of 6x6, with a lenght of 10.

the volume of the lunchbox then will be the area of the semi-circle and square times the length.

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4 0
3 years ago
Read 2 more answers
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