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2 years ago

i would appreciate it if someone helped! Here is a number pyramid puzzle.

Mathematics

1 answer:

solniwko [45]2 years ago

3 0

Answer:

Step-by-step explanation:

- 96

-8 12

- 4 2 6

4 -1 -2 -3

16 .25 -4 .5 -6

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Factorize the following expressions

klio [65]

Step-by-step explanation:

1. a² - ( b ² - 2bc + c² ) = a ² - b ² + 2bc - c²

2. 8p² - 18 q²

3. 3ab² - c²d + 3ab - b²c²

4. x² - 2x + 1

8 0

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

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

4 0

3 years ago

Solve. 3(4 - x) = 12 - 3x

poizon [28]

The answer is B, all real number

6 0

3 years ago

Read 2 more answers

Elias writes the numbers 1 through 20 on separate slips of paper. There are 16 white slips of paper and four yellow slips of pap

Rudiy27

Yes, because the probability of choosing an odd number is equal...

8 0

3 years ago

Read 2 more answers

Kate has 6 dimes 5 nickels and 4 pennies. How much money does Kate have?

Juliette [100K]

Answer:

89 cents

Step-by-step explanation:

6 dimes are 60 cents

5 nickels are 25 cents

4 pennies are 4 cents

60 + 25 + 4= 89

5 0

3 years ago

Read 2 more answers

**i would appreciate it if someone helped! ** Here is a number pyramid puzzle.

i would appreciate it if someone helped! Here is a number pyramid puzzle.