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3 years ago

Use the identity i2 = -1 to compute the powers of i and complete the table.

1 answer:

7 0

Hint: $\bf \begin{array}{llll}
i^{3}\to & i^2\cdot i^1\\\\

i^{4}\to & i^2\cdot i^2\\\\

i^{5}\to & i^2\cdot i^2\cdot i^1\\\\

i^{6}\to & i^2\cdot i^2\cdot i^2\\\\

i^{7}\to & i^2\cdot i^2\cdot i^2\cdot i^1\\\\

i^{4n}\to & (i^{4})^n\\\\

i^{4n+1}\to & (i^4)^n\cdot i^1\\\\

i^{4n+2}\to & (i^4)^n\cdot i^2\\\\

i^{4n+3}\to & (i^4)^n\cdot i^3
\end{array}$

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there is a ratio of 5 girls to 3 boys in the chorus.there are 24 boys in the chorus.how many girls are there

pshichka [43]

I think that the answer to this is 40 girls

24/3=8

8*5=40

hope this helps

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3 years ago

20) The volume of a cone is 1871 cubic feet. If the height of the cone is 6 ft, what is the radius of the cone? (V =

Andrew [12]

Answer:

Step-by-step explanation:

Good Luck and I hope you do well :)

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2 years ago

PLEASE HELP ASAP!

Marina86 [1]

To vertically strech or shrink a function, multily the whole function by the factor taht you want to strech or shrink it by

to horizontally strech or shrink a function, multiply every x by the factor you want to strech or shrink it by

shrinks mean multiplying by a value greater than -1 and less than 1
stetch means multiply by a value greater than 1 or less than -1

first one
horizontal shrink
muliply every x by a fraction
so that is A

2nd one
vertical strech
multiply whole function by a value greater than 1 or less than -1
D is the answer

3rd one
horizontal strech
multiply every x by a value greater than 1 or less than -1
C is the answer

4th one
vertical shrink
multiply whole function by a value greater than -1 and less than 1
B is the answer

5 0

4 years ago

Read 2 more answers

Ok I added the Pics to make it easy

Vitek1552 [10]

Answer:

Bill and Ted are going to order t-shirts for there school clubs. The t-shirts will have the club logo printed on the front. Bill and Ted ask two local t-shirt companies to give them a price. * Patty's Printing charges $21.50 for each t-shirt. * Sandra's shirts has a one-time set up fee for $63 and then charges $18 for each t-sh

Step-by-step explanation:

Part 2: Table Chart:

Number of t-shirts: 2

Patty's cost: 43$

Sandra's cost: : 99$

Number of t-shirts: 4

Patty's cost: 86$

Sandra's cost: : 135$

Number of t-shirts: 6

Patty's cost: 129$

Sandra's cost: : 171$

Number of t-shirts: 8

Patty's cost: 172$

Sandra's cost: : 207$

Number of t-shirts: 10

Patty's cost: 215$

Sandra's cost: : 243$

Number of t-shirts: 12

Patty's cost: 258$

Sandra's cost: : 279$

Number of t-shirts: 14

Patty's cost: 301$

Sandra's cost: : 315$

Number of t-shirts: 16

Patty's cost: 344$

Sandra's cost: : 351$

Number of t-shirts: 18

Patty's cost: 387$

Sandra's cost: : 387$

Part 3: Patty's Printing

Linear equation = equation of a line= y=mx+b

y=21.5x

Part 4: Sandra's Shirts:

Linear equation = equation of a line= y=mx+b

y= 18x+63

Part 5: Note to Jackie

Dear Jackie, I recommend Sandra's shirts.

Write equations:

Sandra's Shirts = 18x+63

Patty's Printing = 21.5x

Sandra's Shirts: 495=18x+63 = 24 shirts

Patty's Printing: 495=21.5x = 23 shirts

Part 6: Refute Jackie

Sandra's Shirts is more expensive at the beginning, but as you buy more shirts (greater than 18), Patty's Printing becomes cheaper.

You should probably add to this, but I can't think of anything else.

Part 7: Equality

At 18 shirts (see table), the shirt cost is equal.

You should probably add to this, but I can't think of anything else.

18x+63=21.5x

Words of encouragement:

Good luck!

8 0

3 years ago

Estimate.Then find the product Please show work and estimate

Oduvanchick [21]

Estimate that 500 x 4 = 2,000
+ 50 x 4 = 200
+ 6 x 4= 24
so you can estimate somewhere between 2,000-2,224

To multiply:
Start with 6 x 4 which equals 24.
You can only put the last letter in the answer and carry the two over the second 5.
Next comes 5 x 4 + the 2 you carried, so 22.
Write down a two in the answer and carry the next two.
5 x 4 + 2 again is 22, this time, since there are no numbers left to carry the 2 over to, you're left with 2,224.

7 0

3 years ago

Read 2 more answers