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3 years ago

What are the possible numbers of positive, negative, and complex zeros of f(x) = -3x^4 + 5x^3 - x^2 + 8x + 4?

Mathematics

1 answer:

USPshnik [31]3 years ago

7 0

Positive Roots: 3 or 1
Negative Roots: 1

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The scale factor of a model of a swimming pool to the actual swimming pool is 1 to 20. The

denis23 [38]

Answer:

$0.05\ m^3$

Step-by-step explanation:

we know that

If two figures are similar, then the ratio of its volumes is equal to the scale factor elevated to the cube

Let

z ----> the scale factor

x ---> the volume of the model of a swimming pool

y ---> the volume of the actual swimming pool

$z^3=\frac{x}{y}$

we have

$z=\frac{1}{20}$

$y=400/ m^3$

substitute

$(\frac{1}{20})^3=\frac{x}{400}$

solve for x

$\frac{1}{8,000}=\frac{x}{400}$

$x=\frac{400}{8,000}$

$x=0.05\ m^3$

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4 years ago

The volume of a rectangular solid is 180 cubic centimeters. The length is 10 centimeters, and the width is 4 centimeters. Using

boyakko [2]

V = 180 cm3
l = 10 cm
w = 4 cm
h = ?

V=lwh, so to get h, divide equation by lw, to get h=V/(lw).

h = 180/(10*4) = 4.5 cm

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4 years ago

A group of t tourists visits a museum. Thirty of the tourists go to see a planetarium show. The remaining tourists are divided e

aleksley [76]

lamo thought it said terrorists

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3 years ago

Solve. Good luck! Please do not try to google this.

Elena L [17]

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4 years ago

Can someone help me on number 4??

Anika [276]

37.5% = 3/8 as a fraction.
So 180 x 8/3 would get you your answer.
Solution: 480

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4 years ago