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3 years ago

Derivative of cos(2t) is?

1 answer:

6 0

The derivative of the function cos(2t) can be determined by following the trigonometric rule of differentiation. In this case, the derivative of cos t is -sin t while that of 2t is t. The total derivative and the answer to this problem asking for the derivative of cos(2t) is -2 sin 2t.

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(Multiple choice/ Brainliest will be rewarded)

Bezzdna [24]

Answer:

1. h=1.5d. 2. 30cm in 20 days

Step-by-step explanation:

2. 20×1.5

4 0

3 years ago

An average person has 6x10^2 times as many red bloods cells as white blood cells. A small sample of blood has 7x10^3 white blood

kogti [31]

Answer:

The sample has 4200 × 10³ cells red blood cells

Explanation:

Assume that the number of white blood cells in an average person is w

We are given that:

Number of red blood cells is 6 × 10² times as many as white blood cells

This means that, in average person:

Number of red blood cells = 6 × 10² × number of white blood cells

Number of red blood cells = 6 × 10² × w ................>

We are given that:

A sample of blood has 7 × 10³ white blood cells

To know the number of red blood cells in the sample, we will simply substitute with w = 7 × 10³ in equation I

This is done as follows:

Number of red blood cells = 6 × 10² × w

Number of red blood cells = 6 × 10² × 7 × 10³

Number of red blood cells = 4200 × 10³ cells

Hope this helps :)

6 0

3 years ago

1 ) what is 175 % of 85?

coldgirl [10]

the equation to solve these problems is: $\frac{is}{of} = \frac{x}{100}$
1)175*85=100x
x=148.75
2)76*100=80x
x=95
3) 96*100=160x
x=60
4)85*120=100x
x=102
5)56*100=75x
x=74.66

8 0

3 years ago

Pfvvvvv me ajudem, é MUITO URGENTE

DochEvi [55]

Answer:

Me no espanol

Step-by-step explanation:

5 0

3 years ago

For the function whose graph is shown, which is the correct formula for the function?

Blababa [14]

For the function whose graph is shown, the correct formula for the function would be option A; y = -2x+3.

<h3>What is the slope?</h3>

The slope is the ratio of the vertical changes to the horizontal changes between two points of the line.

Here, y-intercept is at positive 3,

so the value of b is +3

The line is going downward from left to right, so the slope will be negative.

The slope is defined as rise over run,

= 2/1, = 2,

So the "m" value is -2.

This will gives the functions equation to be

y = mx + b

y = -2x + 3.

Hence, For the function whose graph is shown, the correct formula for the function would be option A; y = -2x+3.

Learn more about slope here:

brainly.com/question/2503591

#SPJ1

7 0

2 years ago