Which is the simplified form of r-7 + s-12?

Mathematics

1 answer:

timama [110]1 year ago

3 0

Answer:

$\frac{1}{ {r}^{7} } + \frac{1}{ {s}^{12} }$

You might be interested in

DON'T answer if you don't know. Do you guys actually know how to give brainless.

Vladimir79 [104]

to give a brainliest, you can look in the upper-right corner of the answer and see a crown. if you click that, it will then mark that question as brainliest answer for your question.

5 0

3 years ago

Read 2 more answers

Simplify expression 6а + 5а - b - 5b + 2а Please help :(

lesya [120]

You just combine the like terms.

6a+5a+2a = 13a

-b+-5b = -6b

13a-6b is the simplified version of the expression.

6 0

2 years ago

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!

aev [14]

Answer: (B) -625

Step-by-step explanation:

Given the sequence {-500, -100, -20, -4, -0.8, ... }, we know that that the first term (a) is -500 and the ratio (r) is $\dfrac{-100}{-500}=\dfrac{1}{5}$

Input those values into the Sum formula:

$S_n=\dfrac{a(1-r^n)}{1-r}\\\\S_8=\dfrac{-500\bigg(1-\dfrac{1}{5}^n\bigg)}{1-\dfrac{1}{5}}\\\\.\quad=\dfrac{-500\bigg(1-\dfrac{1}{390,625}\bigg)}{\dfrac{4}{5}}\\\\.\quad=\dfrac{-500\bigg(\dfrac{390,624}{390,625}\bigg)}{\dfrac{4}{5}}\\\\.\quad=\dfrac{5(-500)(390,624)}{4(390,625)}\\\\.\quad=-624.998\\\\.\quad=-625\quad \text{(rounded to 2 decimal places)}$

4 0

3 years ago

What is the probability of choosing a king in a deck of 52 cards?

nikklg [1K]

K) = 4/51 since there are four aces in the deck but only 51 cards left after the king has been removed. WITH REPLACEMENT: Find the probability of drawing three queens in a row, with replacement. We pick a card, write down what it is, then put it back in the deck and draw again.

8 0

3 years ago

Read 2 more answers

Please I need help !!!!!

Mama L [17]

The formula is y=0.5m+20

You start (0,20) then for each mile you increase by 0.5.
Or
Since the x axis is by two, then every two miles you increase by 1 mile. So (0,20); (2,21); (4,22); (6,23); (8,24).

4 0

3 years ago