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max2010maxim [7]

2 years ago

9

I neeeeed heeeeeeeeelllllp? (Averaged of change from a graph)

1 answer:

marta [7]2 years ago

8 0

Answer:

-6

Step-by-step explanation:

basically, it's asking you to find the slope between the points (4.10) and (5,4)

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Can somebody explain this to me when 2du = 16xdx ???

tamaranim1 [39]

When you set $u=4x^2+4$ , you end up with the differentials $\mathrm du=8x\,\mathrm dx$ . Multiplying both sides by 2 gives $2\,\mathrm du=16x\,\mathrm dx$ .

Then the integral is

$\displaystyle\int_0^1\frac{16x}{(4x^2+4)^2}\,\mathrm dx=\int_4^8\frac2{u^2}\,\mathrm du=-\frac2u\bigg|_{u=4}^{u=8}=-2\left(\frac18-\frac14\right)=\frac14$

8 0

2 years ago

There are 6 people in a room. Each person shakes hands once. How many handshakes will there be?

Yuliya22 [10]

Answer:

B

Step-by-step explanation:

You have already asked this type of question. so now you know how to do this.

6 persons means he shook his hand with 5 people.

like wise add all handshakes

5+4+3+2+1= 15 handshakes

8 0

3 years ago

If the sine of an acute angle is 3/5, what is the cosine of<br> that angle?

Korvikt [17]

Answer:

The cosine of the angle is 4/5.

Step-by-step explanation:

An acute angle is between 0º and 90º, in the first quadrant of the trigonometric circle, in which both the sine and the cosine are positive values.

For each angle $\alpha$ , we have that:

$\sin^{2}{\alpha} + \cos^{2}{\alpha} = 1$

We have that:

$\sin{\alpha} = \frac{3}{5}$

So

$\sin^{2}{\alpha} + \cos^{2}{\alpha} = 1$

$(\frac{3}{5})^{2} + \cos^{2}{\alpha} = 1$

$\cos^{2}{\alpha} = \frac{16}{25}$

$\cos{\alpha} = \frac{4}{5}$

The cosine of the angle is 4/5.

8 0

2 years ago

3x^2-192=0<br><img src="https://tex.z-dn.net/?f=3%20%7Bx%7D%5E%7B2%7D%20%20-%20192%20%3D%200" id="TexFormula1" title="3 {x}^{2}

Murljashka [212]

$3x^2-192=0$
$3x^2=192$
$x^2=\frac{192}{3}$
$x=\pm \sqrt{64}$
$x=\pm 8$

x=-8 and x=8 are the solutions

5 0

2 years ago

Read 2 more answers

19, 25, 31, 19, 34, 22, 31, 34<br>Mean:<br>Median:<br>Mode:<br>Range:

77julia77 [94]

Answer:

all the numbers are gong by adding 6

4 0

3 years ago

Read 2 more answers