Simplify. Write your answer in standard form. (4x3+6x−7)+(3x3−5x2−5x+9)

Mathematics

1 answer:

irga5000 [103]2 years ago

3 0

Answer: x+13

Step-by-step explanation:

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Consider the following system of equations.

lukranit [14]

If you plot them you will see that the intersect each other in two different points.
The solution of a system of equations is the set of points of intersection of the graphs of the equations.
The answer is D.

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2 years ago

Find the volume of the compound shape.

jeyben [28]

<h3>Given:</h3>

Hemisphere ×2 or sphere
Cylinder

<h3>Solution:</h3><h3>Volume of the sphere:</h3>

$v = \frac{4}{3} \pi {r}^{3}$

$v = \frac{4}{3} \times \pi \times {2}^{3}$

$v = 33.51 \: {m}^{3}$

<h3>Volume of the cylinder:</h3>

$v = \pi {r}^{2} h$

$v = \pi \times {2}^{2} \times 6$

$v = 75.40 \: {m}^{3}$

<h3>Total volume:</h3>

$v = 75.40 + 33.51$

$v = 108.91 \: {m}^{3}$

Hence, the volume of the given compound shape is 108.91 cubic meters.

4 0

1 year ago

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There were 28 white ducks swimming in a pond.

pickupchik [31]

28 white ducks swimming in pond
2*(28 white ducks) = 56 brown ducks flew and landed in pond
(28 white ducks)/2 = 14 white ducks remained in the pond

Ducks remaining in the pond (at this point):
(14 white ducks) + (56 brown ducks) = 70 ducks in all

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3 years ago

Help me please i need it rn

umka2103 [35]

Step-by-step explanation:

Multiply 12600 by -3/4 to determine the amount earned.

*12600 can be put over 1.

Multiply:

$\frac{12600}{1} \times \frac{ - 3}{4} = \frac{37800}{4}$