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2 years ago

What is 3+2i simplified

Mathematics

1 answer:

PtichkaEL [24]2 years ago

7 0

Simplify and combine like terms.5-12i

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Which of the following expressions represents the LCM of 91x2y and 104xy3?

GaryK [48]

The answer is {B} 728x2y3.

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3 years ago

The Women's Club has sold 180 of the 360 circus tickets they need to sell. What fraction has been sold?

lukranit [14]

180/360

divide 180 top and bottom

180/180 = 1
360/180 = 2

1/2 sold is your answer

hope this helps

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2 years ago

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Select the explicit formula for the sequence that correspond to this geometric series: 6 + 18 + 54 + 162 + 486

r-ruslan [8.4K]

Answer: ak=6•3k-1

Step-by-step explanation:

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2 years ago

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Write a rule for the nth term of the arithmetic sequence: a11= 50, d = 7

ivolga24 [154]

Answer:

Required rule for $n^{th}$ is $a_{n}=7n-27$ .

Step-by-step explanation:

Given that,

$a_{11} = 50,\ \ d=7$

From the question: we have to write the $n^{th}$ term of Arithmetic sequence.

Arithmetic Sequence or Arithmetic progression (A.P) : It is a sequence which possess that difference between of two successive sequence is always constant.

$a_{1} ,a_{2},a_{3},a_{4}.....................a_{n-1},a_{n}$

where, $a_{1}$ is the first term of A.P

$d$ is the common difference.

$a_{n}$ is the last term or general term.

The above sequence to be in A.P then their common difference should be equal.

$d=a_{2}-a_{1} =a_{3}-a_{2}=a_{4} -a_{3} ..........................a_{n}-a_{n-1}$

Now, Formula of General Term is $a_{n}=a+(n-1)d$

So, $a_{11}= a+(11-1)d\\ a_{11} = a+10d$

Substituting the value of $a_{11} = 50,\ \ d=7$ we get,

$50=a+10\times7\\50=a+70\\a=-20$

Then General term ( $a_{n}$ ) of given data is

$a_{n}=-20+(n-1)7\\a_{n}=-20+7n-7\\a_{n}=7n-27$

Therefore, Required rule for $n^{th}$ is $a_{n}=7n-27$ .

5 0

3 years ago

You are at a restaurant and the check comes to a total of $63. If you want to leave an 18% tip, how much total money should you

astraxan [27]

Answer:

$$74.3$ is the total amount.

Step-by-step explanation:

The first step in this problem is to figure out how much of a tip was left. To find that out, you need to multiply the percentage by the total of the meal.

$63 * .18 = 11.34$

We know that 11.34 was how much of a tip that was left,

To figure out the total amount that was spent, you would add the total amount and the tip.

$63 + 11.34 = 74.34$

4 0

2 years ago