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agasfer [191]
2 years ago
5

What is 4/20 as a percent? And how do I find it?

Mathematics
1 answer:
Reika [66]2 years ago
4 0
Well u know 4/20 equals 0.2 as a decimal but as a percentage it is 20% so 4/20 as a percentage is 20%
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Plz help!
beks73 [17]

First, you need to find the derivative of this function.  This is done by multiplying the exponent of the variable by the coefficient, and then reducing the exponent by 1.  

f'(x)=3x^2-3

Now, set this function equal to 0 to find x-values of the relative max and min.

0=3x^2-3

0=3(x^2-1)

0=3(x+1)(x-1)

x=-1, 1

To determine which is the max and which is the min, plug in values to f'(x) that are greater than and less than each.  We will use -2, 0, 2.

f'(-2)=3(-2)^2-3=3(4)-3=12-3=9

f'(0)=3(0)^2-3=3(0)-3=0-3=-3

f'(2)=3(2)^2=3(4)-3=12-3=9

We examine the sign changes to determine whether it is a max or a min.  If the sign goes from + to -, then it is a maximum.  If it goes from - to +, it is a minimum.  Therefore, x=-1 is a relative maximum and x=1 is a relative miminum.

To determine the values of the relative max and min, plug in the x-values to f(x).

f(-1)=(-1)^3-3(-1)+1=-1+3+1=3

f(1)=(1)^3-3(1)+1=1-3+1=-1

Hope this helps!!

7 0
3 years ago
Aul bought 10 reams of paper at the store for a total of $84 the tax on thepurchase was $4 what was the cost of each ream of pap
yKpoI14uk [10]
84+4/10
hope this helps
4 0
3 years ago
Sam has bought a camera for $200 when it was on 20% off sale. What was the original price of the camera
Olenka [21]
Original price = x
x - .2x = 200  ← original price - discount amount = sale price
.8x = 200     ← 1x - 0.2x = .8x
x = 250      ← divided both sides by .8

The original price was $250
5 0
3 years ago
Read 2 more answers
Whats 1 + 1 lol xmzxl;xd cs[
yKpoI14uk [10]
Omg that's a hard one... hmmmn i'm thinking 25
8 0
2 years ago
What is the height of an equilateral triangle with sides taht are 12 cm long? round to the nearest tenth?
ch4aika [34]
10.4 is the correct answer!!!!
3 0
3 years ago
Read 2 more answers
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