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geniusboy [140]
3 years ago
8

How do you find the derivative of f(x)=cos(x)f(x)=cos(x) ?

Mathematics
1 answer:
Lyrx [107]3 years ago
3 0
f(x)=\cos x\\
f'(x)=-\sin x
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Simplify 3x + 9(X+6) =<br> help please
boyakko [2]

Answer:

12x +54

Step-by-step explanation:

3x + 9(X+6) =

Distribute

3x+9x +54

12x +54

4 0
3 years ago
Read 2 more answers
Find the area of shaded part .​
Firlakuza [10]

Answer:

Area of big rectangle= 5m× 3m

                                   = 15m²

Area of small rectangle=1m× 1m

                                       =1m²

Area of shaded part= Area of big rectangle- Area of a small rectangle

                                 = 15m²-1m²

                                  = 14m²

Step-by-step explanation: Hope it helps

5 0
3 years ago
Andy's weight is 5 kilograms less than twice his brother's. Together they weigh 100 kilograms. What are their weights?
lakkis [162]

Answer:

Step-by-step explanation:

Let x be the brother's weight.

Then 2x-5 is Andy's weight.

x+(2x-5)=100

3x-5=100

3x=105

4 0
3 years ago
Under her cell phone plan, Aubrey pays a flat cost of $57.50 per month and $4 per gigabyte . She wants to keep her bill at $75.1
docker41 [41]

Answer:

57.50+4x=75.10

x=4.4

So she can use up to 4.4 gigabytes of data

4 0
3 years ago
Jade buys a blouse and a skirt for 3/4 of their original price. Jade pays a total of $31.50 for the two items. If the original p
Norma-Jean [14]
3/4 times 18= 13.5
31.5-13.5=18 
It cost 18 dollars for the skirt with a discount.
It cost 13.5 for the blouse as opposed to the original price of 18 dollars.
18(skirt)+13.5(blouse)=31.5
If you set up a proportion to find the original price of the skirt you will get the answer. 
18/x=75/100
75x=18 times 100
75x=1800
75x/75=1800/75
x=24 
The original price of the skirt is 24 dollars.


7 0
3 years ago
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