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3 years ago

The graph of f(x) = 2x3 +x2 – 4x – 2 is shown. How many of the roots of f(x) are rational?

Mathematics

2 answers:

snow_tiger [21]3 years ago

7 0

the correct answer is B:1

Hatshy [7]3 years ago

6 0

Answer:

B) 1

Step-by-step explanation:

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Please help me solve numbers 4, 5, and 6 with some type of explanation as to how you got that answer.

Mila [183]

Answer:

4.R=16

D=16+16=32

$\pi \times d$

C=32π

then do the same thing for other problem

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3 years ago

The formula s = StartRoot StartFraction S A Over 6 EndFraction EndRoot gives the length of the side, s, of a cube with a surface

never [62]

Answer:

$2\sqrt{2}\ ft\ longer$

Step-by-step explanation:

Suppose a cube with side length s, the area of one side is

$A_s=s^2$

Since the cube has 6 sides, the total area is

$A=6A_s=6s^2$

But if we have the area, we can solve the above formula for s to get

$A=6s^2$

$\displaystyle s=\sqrt{\frac{A}{6}}$

We have two different cubes with areas 1,200 square inches and 768 square inches. Let's compute their side lengths

$\displaystyle s_1=\sqrt{\frac{1,200}{6}}=\sqrt{200}$

$\displaystyle s_1=10\sqrt{2}\ ft$

$\displaystyle s_2=\sqrt{\frac{768}{6}}=\sqrt{128}$

$\displaystyle s_2=8\sqrt{2} ft$

The difference between them is

$10\sqrt{2}\ ft-8\sqrt{2}\ ft=2\sqrt{2}\ ft\approx 2.83\ ft$

The side of the cube with area 1,200 square inches is $2\sqrt{2}\ ft$ longer then the side of the cube with area 768 square inches

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3 years ago

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Finn bought 2 packs of stickers. A friend gave him 4 more stickers. Now he has 24 stickers in all. How many stickers were in eac

Murljashka [212]

2x+4=24 -4 -4 ------------- 2x=20 ÷2 ÷2 ---------- X=10 So 10 stickers in each pack

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Answer:

c and d

Step-by-step explanation:

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Answer:

it depends on how big jess wants to make her birdhouse.

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3 years ago