3 years ago

Shortcuts?:) Find dy/dx y=-3x^7

1 answer:

4 0

Knowing the power rule:
dx*n*x^(n-1) all you'd need to do is bring the 7 down and multiply it by -3, then subtract 1 from 7. Because dx is 1 you don't need to worry about it (you'll use chain rule for that)
So your final answer should be dy/dx= -21x^6

You might be interested in

PLEAsE HELP[<br> simplify:<br> (3x^4y^4)(5x^4) / 20xy^2

almond37 [142]

Answer:

$\frac{3x^6y^2}{4}$

Step-by-step explanation:

$\frac{3x^6y^2}{4}$

3 0

2 years ago

Systems of Equations Word Problem:

Semmy [17]

X= fancy, y= plain
x+y= 7
28x+ 15y=131
solve by substitution

4 0

3 years ago

PLEASE HELP!!!!!!!!!!!

podryga [215]

Angle MHL is equal to angle JHN + angle NHK

7 0

2 years ago

Marco is making three tiles pictures. he uses 310 green tiles to make each picture. he uses 50 fewer red tiles than green tiles

Anettt [7]

Hi there!

To solve this problem, we need to first find the amount of red tiles he used by subtracting 50 from 310, and then finding the sum of the two numbers.

310 - 50 = 260

Now, we know that there are 260 red tiles.

3 * 310 = 930
3 * 260 = 780

930 + 780 = 1710

So, the answer is 1710 tiles total.

Hope this helps!

7 0

3 years ago

How do you solve 90% of 20?

Marizza181 [45]

All you would do is multiply .9 by 20
.9*20=18

90% of 20 is 18

3 0

3 years ago