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Mathematics

1 answer:

sukhopar [10]3 years ago

4 0

There are 10 total marbles and three are pink. So you are to determine the probability of choosing a pink marble, placing it back in the bag and choosing another pink marble.
The probability of choosing a pink marble is # of pink marbles to # of all marbles which is 3/10. Since we place the marble back in the bag, the probability is the same for the second time.
To determine the probability of both occurrences, we need to multiply 3/10 x 3/10 which is 9/100. This can be written as 9:100 as a ratio.

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Find the volume of the tank below.<br> A. 63 m^3<br> B. 54 m^3<br> C. 78 m^3<br> D. 96 m^3

Andrei [34K]

Answer:

$V = 62.832m^3$ (Approximation to the nearest thousandth)

Step-by-step explanation:

The area of a cylinder can be determined by the formula:

$V = \pi r^2h$ (We know that the radius, r, is 2m, and the height, h, is 5m, so we can substitute them into the formula to calculate the volume of this cylindrical tank)

$V = \pi * 2^2 * 5$ (Simplify)

$V = 20\pi$

$V = 62.832m^3$ (Approximation to the nearest thousandth)

4 0

3 years ago

Anyone know how to do this ????

SOVA2 [1]

There you go. Hope this helps.

5 0

3 years ago

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m_a_m_a [10]

The given trinomial can be factored using factorization as

x²+4x-32
=x²+8x-4x-32
=x(x+8)-4(x+8)
=(x+8)(x-4)

Thus x+8 and x-4 are the factors of the given trinomial. From these we can see x-4 is listed in option C.

So the answer to this question is Option C

6 0

3 years ago

Which expression is equivalent to 2(3x + 4y + x)?

Elena L [17]

$\huge\textsf{Hey there!}$