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3 years ago

How to find the probability of this? Please explain Thanks!

Mathematics

2 answers:

Genrish500 [490]3 years ago

5 0

Red disks are numbered 1 through 6, the odd numbers are 1, 3, and 5, so there are 3 red disks with odd numbers.

The total number of disks in the box are both red and yellow, so 6 red + 2 yellow = 8 total disks.

The probability of picking an odd numbered red disk would be the number of odd numbered red disks over the total number of disks:

The answer is 3/8

Inessa05 [86]3 years ago

4 0

Answer:

3/4

pick 1,3,5 (reds) from 1,3,5,7(odd-numbered)

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Feliz [49]

$f(x,y,z)=2z^2x+y^3$

$f$ has gradient

$\nabla f(x,y,z)=2z^2\,\vec\imath+3y^2\,\vec\jmath+4xz\,\vec k$

which at the point (-1, 4, 3) has a value of

$\nabla f(-1,4,3)=18\,\vec\imath+48\,\vec\jmath-12\,\vec k$

I'm not sure what the given direction vector is supposed to be, but my best guess is that it's intended to say $\vec u=15\,\vec\imath+25\,\vec\jmath$ , in which case we have

$\|\vec u\|=\sqrt{15^2+25^2}=5\sqrt{34}$

Then the derivative of $f$ at (-1, 4, 3) in the direction of $\vec u$ is

$D_{\vec u}f(-1,4,3)=\nabla f(-1,4,3)\cdot\dfrac{\vec u}{\|\vec u\|}=\boxed{\dfrac{294}{\sqrt{34}}}$

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3 years ago

✓-90= Ai√B What is the value of A? What is the value of B?

olga2289 [7]

Answer:

A = 3, B = 10

Step-by-step explanation:

$\sqrt{-90}$

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in the form Ai $\sqrt{B}$

with A = 3 and B = 10

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2 years ago

Zachary bought 8 hot dogs at the fair. He paid a total cost of $12.00 for the food. Find the unit cost of one hot dog.

masya89 [10]

Answer:.66

Step-by-step explanation:

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topjm [15]

Hey there!

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Hope it helps and have a great day!

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2 years ago

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