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3 years ago

If i= the square root of -1, what is the value of i to the 3rd power

Mathematics

1 answer:

serious [3.7K]3 years ago

3 0

I^3 = i^(2+1) = i^2 x i -1 x i = -i

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The Family Fine Arts Center charges $20 per adult and $13 per senior citizen for its performances. On a recent weekend evening w

andre [41]

Answer:

342.

Step-by-step explanation:

Let x represent the number of adults and y represent the number of senior citizens.

We have been given that on a recent weekend evening 514 people paid for the admission. We can represent this information in an equation as:

$x+y=514...(1)$

We have been given that the Family Fine Arts Center charges $20 per adult and $13 per senior citizen for its performances.

The cost of x adult tickets would be $20x$ and cost of y senior citizen tickets would be $13y$ .

We are also told that total receipts were $7886 on a recent weekend evening. We can represent this information in an equation as:

$20x+13y=7,886...(2)$

From equation (1), we will get:

We can represent this information in an equation as:

$x=514-y$

Substitute this value in equation (2) as:

$20(514-y)+13y=7,886$

$10,280-20y+13y=7,886$

$10,280-7y=7,886$

$10,280-10,280-7y=7,886-10,280$

$-7y=-2394$

$\frac{-7y}{-7}=\frac{-2394}{-7}$

$y=342$

Therefore, 342 senior citizens paid for the art center.

4 0

3 years ago

Suppose you had x dollars in your bank account. You spent $22 but have at least $28 left. How much money did you have initially?

skelet666 [1.2K]

Answer:

Step-by-step explanation:

spent 22 ---> x - 22.

at least 28 left ---> (x - 22) >= 28

SOLVE:

x - 22 >= 28

x >= 50

8 0

3 years ago

Read 2 more answers

Each year, the number of students taught by Mr. Wright increases by 2. The first year, he taught 18 students. The total number o

Masja [62]

Answer: 452 students

25 x 18 = 450 + 2= 452

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3 years ago

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What percent of the total players scored 31-40 points during November

Tomtit [17]

Answer:

40%

Step-by-step explanation:

4÷10x100=40

As you have 10 players total and 4 players scored between 31 and 40 points

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3 years ago

Which best describes the polygon whose vertices in the coordinate plane are (–3,0) (3, 0), (0, –3)?

Alex Ar [27]

It would be only regular

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3 years ago