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Leviafan [203]
2 years ago
7

What is the value of "a" in the following quadratic? (Make sure the equation is in

Mathematics
1 answer:
Hoochie [10]2 years ago
8 0

Answer: a= - \frac{b}{x}- \frac{c}{x2}

Step-by-step explanation:

1. Move all terms not containing \alpha to the right side of the equation.

\alphax^{2}=-bx-c

2. Divide each term in \alpha x^{2}=-bx-c by x^{2} and simplify.

a= - \frac{b}{x} - \frac{c}{x^{2} }

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Cylinders A and B are similar. The volume of cylinder A is 20mm3. Calculate the volume of cylinder B.
MrRa [10]

The question is incomplete. The complete question is :

Cylinders A and B are similar. The length of the cylinder A is 4 mm and the length of cylinder B is 6 mm. The volume of cylinder A is 20mm3. Calculate the volume of cylinder B.

Answer:

67.5 mm^3

Step-by-step explanation:

Given that :

Cylinder A and cylinder B are similar.

Let volume of cylinder A = 20 mm^3

We know the volume of a cylinder is given by V = $\pi r^2 h$

where, r is the radius of the cylinder

            h is the height of the cylinder

We have to find the scale factor.

The length scale factor is = $\frac{6}{4}$

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Area scale factor $=\left(\frac{3}{2}\right)^2$

                           $=\frac{9}{4}$

∴ Volume scale factor $=\left(\frac{3}{2}\right)^3$

                                     $=\frac{27}{8}$

Therefore, the volume of cylinder B is $=20 \times \frac{27}{8}$

                                                               = 67.5 mm^3

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3 years ago
A suit is sold for $68 while marked at $80. What<br> is the rate of discount?
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6 0
2 years ago
This is a test i'm taking there's 8 questions. This is due today it would be great if I got help on all the questions
MA_775_DIABLO [31]

Answer:

DEF

Step-by-step explanation:

The other triangle is a reflection

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