3 years ago

Which fraction is equivalent to 0.4?

Mathematics

1 answer:

statuscvo [17]3 years ago

5 0

Answer:

Four-tenths

Step-by-step explanation:

Four-tenths

Hope it helps you in your learning process.

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A sphere with a radius of 4 cm is enlarged by a scale factor of 2. What is the approximate volume of the new sphere in cubic cen

Lisa [10]

$\textit{volume of a sphere}\\\\ V=\cfrac{4\pi r^3}{3}~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ \stackrel{original}{r=4}\\ \stackrel{enlarged}{r=(4)(2)} \end{cases}\implies \begin{array}{llll} V=\cfrac{4\pi (\stackrel{enlarged}{~~(4)(2)~~})^3}{3} \\\\\\ V=\cfrac{2048\pi }{3}\implies V\approx 2144.66~cm^3 \end{array}$

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2 years ago

Write an equation in slope-intercept form for the line with slope -6 and y-intercept 7. Then graph the line.

gavmur [86]

I can only give the equation right now, sorry.

y= -6x + 7

6 0

3 years ago

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Pre-calc<br> x - 3 is a factor of P(x) = x^3 – 7x² +15x-9<br> A. True<br> B. False

joja [24]

A. True
Explanation-

Let p(x) = x^3 – 7x^2 – 15x – 9

For checking that (x – 3) is a factor of p(x), we find : p(3)

p(3) = (3)^3 – 7(3)^2 + 15(3) – 9

= 27 – 63 + 45 – 9

= 72 – 72

= 0

Hence, (x – 3) is a factor of p(x).

By division of p(x) by x – 3, we get the quotient

= x^2 – 4x + 3

∴ x^3 – 7x^2 + 15x – 9

= (x – 3)(x^2 – 4x + 3)

= (x – 3)(x – 3)(x – 1)

= (x – 3)^2(x – 1)

4 0

2 years ago

What would x be equal to?

Vilka [71]

Answer:

x = $\frac{C-By}{A}$

Step-by-step explanation:

Given

Ax + By = C ( subtract By from both sides )

Ax = C - By ( divide both sides by A )

x = $\frac{C-By}{A}$

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3 years ago

Joey can walk at a rate of 3 meters per second. How long would it take him to walk 300 meters.

galina1969 [7]

Answer:

100s

Step-by-step explanation:

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3 years ago

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