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3 years ago

The product of 0.031 and 1,000,000 is

Mathematics

2 answers:

Free_Kalibri [48]3 years ago

8 0

Answer:

0.00000003-6

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3241004551 [841]3 years ago

3 0

Answer:

31,000 and 6

Step-by-step explanation:

The product of 0.031 and 1,000,000 is 31,000, because the decimal point in 0.031 moves 6 places to the right.

Hope it helps :)

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ale4655 [162]

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3 years ago

F(x) = - 2x<br> g(x) = 8x^2– 5x+7<br> Find (f .g)(x).

N76 [4]

Answer:

$\large\boxed{(f\cdot g)(x)=-16x^3+10x^2-14x}$

Step-by-step explanation:

$f(x)=-2x\\\\g(x)=8x^2-5x+7\\\\(f\cdot g)(x)=f(x)\cdot g(x)\\\\\text{substitute:}\\\\(f\cdot g)(x)=(-2x)(8x^2-5x+7)\qquad\text{use the distributive property}\\\\(f\cdot g)(x)=(-2x)(8x^2)+(-2x)(-5x)+(-2x)(7)\\\\(f\cdot g)(x)=-16x^3+10x^2-14x$

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4 years ago

FIND THE AREA OF THIS FIGURE PLEASE HELP!!

Valentin [98]

Answer:17

Step-by-step explanation:

So you start off by multiplying 3×5 beacuse of Area=base×height. And its 15. So you then multiply 2×1 and its 2. You add 15+2=17

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3 years ago

What is the volume of the cylinder

Mekhanik [1.2K]

Answer:

2,712.96 yd³

Step-by-step explanation:

The formula for finding the volume of a cylinder:

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h = height

In this picture, we are given all of the values we need to set up and solve this equation.

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3 years ago

Given the probability density function f(x) = 1/5 over the interval [4, 9], find the expected value, the

SIZIF [17.4K]

Answer:

Step-by-step explanation:

Assume that f(x) = 0 for x outside the interval [4,9]. We will use the following

$E[X^k] = \int_{4}^{9}x^k f(x) dx$

$Var(X) = E[X^2}- (E[X])^2$

Standard deviation = $\sqrt[]{Var(X)}$

Mean = $E[X]$

Then,

$E[X] = \int_{4}^{9}\frac{1}{5}dx = \frac{9^2-4^2}{2\cdot 5} = \frac{13}{2}$

$E[X^2] = \int_{4}^{9}\frac{x^2}{5}dx = \frac{9^3-4^3}{3\cdot 5} = \frac{133}{3}$

Then, $Var(x) = \frac{133}{3}-(\frac{13}{2})^2 = \frac{25}{12}$

Then the standard deviation is $\frac{5}{2\sqrt[]{3}}$

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4 years ago