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prisoha [69]
3 years ago
13

Find the derivative from the first principle y=×3

Mathematics
1 answer:
icang [17]3 years ago
5 0
The derivative of x^3 is 3x^2.... is that what you were looking for?
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The ABC Book Club charges a $40 monthly fee, plus $2 per book read in that month. The Easy Book Club charges a 35$ monthly fee,
MAVERICK [17]
The expression for the cost of the ABC Book Club is 2x + 40. The expression for the cost of the Easy Book Club is 3x + 35. To find when the total charge for both book clubs is equal, the two expressions must equal each other. (x = the number of books read)

2x + 40 = 3x + 35

Subtract 35 from both sides.

2x + 5 = 3x

Subtract 2x from both sides.

5 = x

So, the total charge for each club is equal when 5 books are read.
5 0
2 years ago
Karl is making a pot of chili. The recipe calls for StartFraction 3 Over 8 EndFraction cup of chili powder, but Karl only wants
mina [271]

Given:

The recipe calls for \dfrac{3}{8} cup of chili powder.

Karl only wants to use half as much so it won’t be so spicy.

To find:

How much chili powder should Karl use?

Solution:

We have,

Chill power for recipe = \dfrac{3}{8} cup

Chill power used by Karl is half  of chill power for recipe.

\text{Chill power used by Karl}=\dfrac{1}{2}\times \dfrac{3}{8} cup\text{Chill power used by Karl}=\dfrac{3}{16} cup

Therefore, \dfrac{3}{16} cup of chili powder should Karl use.

7 0
2 years ago
Emmy throws a doggy toy up in the air. The path of the toy is modeled by the function f(x)=−x^2+4x+5, where x is the number of f
Molodets [167]

Answer:

9feet

Step-by-step explanation:

Given the path of the toy modeled by the function f(x)=−x^2+4x+5, where x is the number of feet the toy is from Emmy and f(x) is the height of the toy.

AT maximum height, the velocity of the toy will be zero. Hence;

df(x)/dx = 0

-2x + 4 = 0

-2x = -4

x = -4/-2

x = 2

Get the maximum height;

Substitute x = 2 into the given function;

f(x)=−x^2+4x+5

f(2)=−2^2+4(2)+5

f(2) = -4+8+5

f(2) = 9feet

Hence the maximum height of the toy is 9feet

4 0
3 years ago
SOMEONE PLEASE ACTUALLY HELP MEEE!!!!! Write an example of the Identity Property of Addition using the number 43.
masya89 [10]

Answer:

40 + 3

Step-by-step explanation:

=43. you dont need to use it for 0, even though that's adding too. and multiplying isnt addition.

8 0
3 years ago
Find 2 numbers whose sum is 36 and diffrence is 10​
Evgen [1.6K]

Answer:

23 and 13

Step-by-step explanation:

can you help me with my latest answer too??i'm on a time limit rn

5 0
2 years ago
Read 2 more answers
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