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Ksju [112]
3 years ago
11

Hello there!

Mathematics
1 answer:
Usimov [2.4K]3 years ago
8 0

firstly chain rule is dy/dx = dy/du * du/dx

a) y = 5u² + u - 1 hence dy/du = 10u +1

u = 3x +1 hence du/dx = 3

so dy/dx = 3(10u +1) {sub in u and expand}

b) y= u^-2 hence dy/du = -2u^-3

u=2x+3 hence du/dx = 2

so dy/dx= 2(-2u^-3) {sub in u}

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Hope this helps!

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3 years ago
Help algebra word problems a quire of paper consists of 25 sheets, and a ream of paper consists of 500 sheets. how many quires a
Natali5045456 [20]
Good morning from Canada!

What we know:
-quire=25 sheets
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So, we are looking for how many quires can fit into a ream. All we have to do is divide the number of sheets in a ream (100) by the number of sheets in a quire (25) because dividing allows us to see how many times a specific number can go into another number, which is what we are looking for. (How many quires are in a ream).

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ANTONII [103]
I think it is 47 not sure
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Which of the following is the graph of y = cos(2x)?
irinina [24]

Answer:

Select the one which meets the following characteristics.

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5 0
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