2 years ago

What is the derivative of cos(x)?

Mathematics

2 answers:

andre [41]2 years ago

5 0

Answer:

The derivative of the cosine function is written as (cos x)' = -sin x, that is, the derivative of cos x is -sin x.

irina [24]2 years ago

3 0

Step-by-step explanation:

derivative of cos(x) is -sinx

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mias bank statement showes a closing balance of 75.65 there are no outstanding checks or deposits her checkbook showes a balance

Solnce55 [7]

I'm pretty sure to solve this all you do is subtract 77.95 - 75.65, which would be 2.30. Hope that helps!

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3 years ago

Jina must choose a number between 55 and 101 that is a multiple of 3, 6, and 9. Write all the numbers that she could choose.

kupik [55]

Answer:

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Step-by-step explanation:

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3 years ago

The odds of winning a contest are 3:7. What is the probability winning the contest?

DiKsa [7]

Answer:

0.3

Step-by-step explanation:

Given: The odds of winning a contest are 3:7

To find: probability of winning the contest

Solution:

Probability refers to chances of occurrence of an event.

Odds are defined as (chances for success) : (chances against success)

Probability of winning = (chances for success) : (chances for success + chances against success)

As odds of winning a contest are 3:7,

(chances for success) : (chances against success) = 3:7

So,

Probability of winning the contest = $\frac{3}{3+7} =\frac{3}{10}=0.3$

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3 years ago

R + 8 > 21 what the ansr

Ksivusya [100]

Answer: r>13

Step-by-step explanation:

The sign is less than so r +8 has to be 20 or less.

3 0

3 years ago

What is the solution to the system of equations?

zysi [14]

Answer:

x=3, y=-1

Step-by-step explanation:

x+y = 2

x -y =4

I will use elimination to eliminate the variable y. Add the two equations together.

x+y = 2

x -y =4

-------------

2x = 6

Divide each side by 2

2x/2 = 6/2

x = 3

But we still don't know y

x+y =2

Substitute x=3 into the equation

3+y =2

Subtract 3 from each side

3-3 +y =2-3

y =-1

7 0

3 years ago

Read 2 more answers