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2 years ago

MATH, GEOMETRY!! HELP!!

Mathematics

1 answer:

Reil [10]2 years ago

8 0

Answer:A

Step-by-step explanation:

For SSS you need all sides

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Find the Volume. Can someone explain how they did it. thank you

hodyreva [135]

6 x 5 x 7 = 210
The volume formula is length x width x height :)

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3 years ago

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If you divide 3/4 by 4/7 what is the answer in fraction form?

victus00 [196]

The answer is 21/16

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3 years ago

Suppose you choose a team of two people from a group of n > 1 people, and your opponent does the same (your choices are allow

jonny [76]

Answer:

The number of possible choices of my team and the opponents team is

$\left\begin{array}{ccc}n-1\\E\\n=1\end{array}\right i^{3}$

Step-by-step explanation:

selecting the first team from n people we have $\left(\begin{array}{ccc}n\\1\\\end{array}\right) = n$ possibility and choosing second team from the rest of n-1 people we have $\left(\begin{array}{ccc}n-1\\1\\\end{array}\right) = n-1$

As { A, B} = {B , A}

Therefore, the total possibility is $\frac{n(n-1)}{2}$

Since our choices are allowed to overlap, the second team is $\frac{n(n-1)}{2}$

Possibility of choosing both teams will be

$\frac{n(n-1)}{2} * \frac{n(n-1)}{2} \\\\= [\frac{n(n-1)}{2}] ^{2}$

We now have the formula

1³ + 2³ + ........... + n³ = $[\frac{n(n+1)}{2}] ^{2}$

1³ + 2³ + ............ + (n-1)³ = $[x^{2} \frac{n(n-1)}{2}] ^{2}$

= $\left[\begin{array}{ccc}n-1\\E\\i=1\end{array}\right] = [\frac{n(n-1)}{2}]^{3}$

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3 years ago

The sum of a rational number and a positive integer is rational.

Marina86 [1]

Answer:

Step-by-step explanation:

Always True

Positive integers are rational numbers. Adding two rational numbers produces another rational number.

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3 years ago

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can someone explain to me how to do this?

vladimir2022 [97]

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10 feet per second most prob

Step-by-step explanation:

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2 years ago