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garik1379 [7]
3 years ago
6

Differentiate y=c cos t + t^2 sin t

Mathematics
1 answer:
julsineya [31]3 years ago
8 0
Y = c cos t + t^2 sin t
y' = c sin t + 2t sin t + t^2 cos t = (c + 2t) sin t + t^2 cos t
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MATH HELP 5 QUESTIONS!!!!!!!!
Alexandra [31]
1.y<=1-3x, the slope is the number with x so -3, and the y intecept is the lone number so -1  becuase the symbol includes equal to, the graph would have a solid line that passes through (0,1) and since it is also less than the shaded region would be below the line so the answer is D

2. -1x2 = -2 +-1 = -3 which is greater than -3, the answer is A

3. y-2x =-3,  -1 - 2(1) = -1-2 = -3 this is less than or equal to -3. Answer is D

4 the symbol is greater than or equal to, so it would be a solid line with the shaded portion to the right of the line, Answer is A

5. the symbol is just greater than so the line would be dotted and the answer is negative (-6) so the shaded are would be to the left of the dotted line, the answer is D


8 0
3 years ago
A video game box is 15 inches long and 10
Bumek [7]

Answer:

The box is 5 inches tall

Step-by-step explanation:

The given dimensions of the video games are;

The length of the video game, L = 15 inches

The width of the video game, W = 10 inches

The volume of the video game box, V = 750 cubic inches

Assuming that the shape of the video game box is a cuboid, we have;

The formula for the volume of a cuboid, V = Length, L × Width, W × Height, H

∴ V = L × W × H

The height of the cuboid, H = V/(L × W)...(1)

Where, for the video game box;

L = Length = 15 in.

W = Width = 10 in.

V = Volume = 750 in.³

Plugging in the values of the variables in equation (1) gives;

H =  V/(L × W) = 750 in.³/(15 in. × 10 in.) = 5 in.

The height of the box, H = 5 inches.

5 0
3 years ago
Solve the equality, - (7c-18)-2c&gt;0
Gwar [14]
(7c-18)-2c>0

group like terms: 7c-2c-18>0

add similar elements: 7c-2c=5c
5c-18+18>0+18

Add 18 to both sides
5c-18+18>0+18

simplify
5c>18

divide both sides by 5
5c÷5>18/5

simplify
c>18/5
7 0
3 years ago
Write an equation of a line in point-slope form that has a slope of -2 and passes through (5, -1).
White raven [17]

Answer:

  A.  y + 1 = -2(x – 5)

Step-by-step explanation:

For a line with slope m through point (h, k), the equation is ...

  y -k = m(x -h)

Fill in your values of m=-2, h=5, k=-1 and you have ...

  y -(-1) = -2(x -5)

  y +1 = -2(x -5) . . . . . . simplify. Matches selection A.

6 0
3 years ago
If the measure of arc CB is 8/3 units, what is the measure of CAB?
Oksanka [162]

Question:

If the measure of arc CB is \frac{8}{3} \pi units, what is the measure of ∠CAB?

Answer:

120°

Step-by-step explanation:

The figure has been attached to this response.

The figure shows a circle centered at A and has a radius of 4 units.

Also, the length of the arc CB (as given in the question) is  \frac{8}{3} \pi units.

The length <em>L </em>of an arc is given by;

L = \frac{\beta }{360} * 2\pi  * r         -----------------(i)

Where;

β = angle subtended by the arc at the center of the circle and measured in degrees

r = radius of the circle

From the question;

β = ∠CAB

r = 4 units

L =  \frac{8}{3} \pi

<em>Substitute these values into equation (i) as follows;</em>

\frac{8}{3} \pi = \frac{\beta }{360} * 2\pi  * 4

=>  \frac{8}{3} \pi = \frac{\beta }{360} * 8\pi

<em>Cancel 8</em>\pi<em> on both sides</em>    

\frac{1}{3} = \frac{\beta }{360}

<em>Cross multiply</em>

3 x β = 360 x 1

3β = 360

<em>Divide both sides by 3</em>

<em />\frac{3\beta }{3} = \frac{360}{3}<em />

β = 120°

Therefore, the measure of ∠CAB is 120°

6 0
3 years ago
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