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mezya [45]
3 years ago
5

Factor completely. -2k - k^3 - 3k^2

Mathematics
1 answer:
Goshia [24]3 years ago
7 0

Answer:

-k(k + 2)(k + 1)

Step-by-step explanation:

-k is a common factor here.  Factoring -k out, we get:

-k(2 + k^2 + 3k), or (after writing the quadratic in standard form)

-k(k^2 + 3k + 2) = -k(k + 2)(k + 1)

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Find the missing number so that the equation has no solutions 2x+2=?x+13
enyata [817]

Answer:

2

Step-by-step explanation:

2x+2=?x+13

Let x=2

2x+2=2x+13

Subtract 2x from each side

2 =13

This is never true so there is no solution

4 0
3 years ago
Find the measure of angle X
stich3 [128]

According to the picture, you can assume that angle X is congruent to angle Y due to their triangle shape. Here is the work:

1. Set the equations equal to one another: 4x-8 = 2x

2. Move the variables to get the "x" values on one side: 2x = 8

3. Divide by 2 to get "x": x = 4

4. Plug in "x" into the Angle X equation: 4(4)-8 = angle x....16-8....8

Angle X is 8 degrees. Hope this helped :)

6 0
4 years ago
Read 2 more answers
GRAVITY The height above the ground of a ball thrown up with a velocity of 96 feet per second from a height of 6 feet is 6+96t-1
Nata [24]
Here the time function is h(t) = [6 + 96t - 16t^2] feet.

The initial height of the ball is 6 feet.  That's when t=0.  h(0)=[6+0-0] ft = 6 ft.

At t=7 sec, h(t) = [6 + 96t - 16t^2] feet becomes
       h(7 sec) = h(t) = [6 + 96(7) - 16(7)^2] feet       This produces a large negative number (-106 ft), which in theory indicates that the ball has fallen to earth and burrowed 106 feet into the soil.  Doesn't make sense.

Instead, let t=1 sec.    Then h(1 sec) = h(t) = [6 + 96(1) - 16(1)^2] feet
                                                                     =[6 + 96 -16] ft, or 86 ft.

One sec after the ball is thrown upward, it reaches a height of 86 feet.  It continues to rise, slowing down, until it finally stops for an instant and then begins to fall towards earth.

6 0
4 years ago
Can someone please help me out thanks.
DENIUS [597]
Could you zoom in more I can barely see the equation and model.
5 0
3 years ago
A cone has a diameter of 4 cm and a height that is 6 times the diameter. Using 3.14 for pi, which of the following can be used t
Triss [41]

Answer:

1/3(3.14)2^2(24)

Step-by-step explanation:

The volume of a cone is given by the formula;

1/3πr³

Considering the radius is 2 cm and the height is 24 cm (4 times the diameter).

Therefore;

Volume = 1/2(3.14)2²(24)

            This can be used to calculate the volume.

3 0
3 years ago
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