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miv72 [106K]
3 years ago
14

Which equation describes the nth term of the arithmetic sequence {2, -1, -4, -7, ...}

Mathematics
1 answer:
Artyom0805 [142]3 years ago
7 0

Answer:

jsshdhdnfmfff

Step-by-step explanation:

jxdhfjdiididdodkd

You might be interested in
Wha is 5÷312 in long division
bezimeni [28]

The answer is 62 with a remainder of 2.


Hope this helps!





5 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
Someone help me please
Gemiola [76]

Answer:

x=2\sqrt{6}

Step-by-step explanation:

Use the Pythagorean theorem:

a^2+b^2=c^2

a and b are the legs and c is the hypotenuse. Insert the values:

\sqrt{10}^2+\sqrt{14}^2=x^2

Simplify exponents using the rule \sqrt{x}^2=x :

10+14=x^2

Simplify addition:

24=x^2\\x^2=24

Find the square root:

\sqrt{x^2}=\sqrt{24}\\  x=\sqrt{24}

Simplify in radical form: Find a common factor of 24 that is a perfect square:

\sqrt{24}=\sqrt{4*6}

Separate:

\sqrt{4}*\sqrt{6}

Simplify:

2*\sqrt{6}\\x=2\sqrt{6}

Finito.

3 0
3 years ago
Read 2 more answers
Convert (20 possible points)
Sergeeva-Olga [200]

Answer:

9.7*10^9 or 9,700,000,000

Step-by-step explanation:

To find the answer, multiply 9.7 * 10^6 by 1000 times becasue 1kg = 1000g, we got:

9.7 * 10^6 * 1000 = 9.7*10^9 or 9,700,000,000

Hope this help you :3

8 0
3 years ago
Read 2 more answers
The numbers of pages in the books in a library follow a normal distribution. If the mean number of pages is 180 and the standard
Katena32 [7]
16% have fewer pages
84% have more pages
8 0
3 years ago
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