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vodomira [7]
3 years ago
13

Simplify the complex number i^28 as much as possible.

Mathematics
1 answer:
ella [17]3 years ago
5 0

let's recall that i⁴ = 1 so then    i^{28}\implies i^{4\cdot 7}\implies (i^4)^7\implies (1)^7\implies 1

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A turtle is moving 17 inches per minute. How many yards per hour is it moving? (Note 1 yard = 3 ft )
KIM [24]

Answer:

28.3 yards per hour

Step-by-step explanation:

36 inches=1 yard

17inches*1 yard           =.47 yards

               /36 inches

In one minute, the turtle moves .47 yards.

60 minutes=1 hour

60minutes * .47 yards =28.3 yards per hour

3 0
3 years ago
Read 2 more answers
The price of a shirt has been discounted by $20. The sale price is $24.95. What percent of the original list price is the discou
Verizon [17]

Answer:

this is an example

Step-by-step explanation:

There are a few different ways to approach this problem, including the following two methods.

 

1) Find 20% of the original price, then subtract that amount from the original price. 

    To find a percentage of a number, you multiply the number by the percentage.  (You are finding a part of a whole.)

    

                   20% = 20/100 = 1/5    or   20% = 0.20

 

    Original Price: $24   Find 20% of $24.                         (Note: "of" is taking part of a whole, so you multiply.)

                

                    0.20 x 24 = 4.80            This is the mark down, or the amount you subtract from original price.

   

    Sale Price = Original Price - Mark Down   

                   =   24.00 - 4.80

                   =   19.20

 

2) If you save 20%, you are still paying 80%. (100-20 = 80) Therefore the sale price is 80% of the original price.

 

                    80% = 80/100 = 4/5     or    80% = 0.80

 

     Sale Price = 80% of Original Price

                    = 0.80 x 24

                    = 19.20

 

5 0
3 years ago
WILL SEND EXTRA POINTS FOR RIGHT ANSWER! ASAP!
Ahat [919]
It would be at 0,7. Plug in 0 for x, and you will get 7 for y.
4 0
3 years ago
Read 2 more answers
Calculate ZQRP<br> 12 cm<br> Р<br> R<br> 18 cm
gladu [14]

Answer:

<QRP = 48.2°

Step-by-step explanation:

Given:

PR = 18 cm

QR = 12 cm

Required:

<QRP = angle R

Solution:

Reference angle = <R (<QRP)

Adjacent side length = 12 cm

Hypotenuse = 18 cm

Thus:

Cos (R) = 12/18

cos (R) = 0.6667

R = Cos^{-1}(0.6667)

R = 48.1871227

<QRP = 48.2° (nearest tenth)

8 0
3 years ago
Explain why ???? ??
Oksana_A [137]
The answer is B.

A linear function is a first-order polynomial, which is of the form y = ax + b. It is called first-order because the power of x is 1.

A second-order polynomial is of the form y = ax^2 + b; which eliminates A. This is also known as a quadratic function.

C. can be simplified to y = 2/3 - 7/x, which probably has a name as well.

D. can be simplified to y - y = 3x/8 + 1/8, which is 0 = 3x + 1 or x = -1/3. Not a linear function
8 0
4 years ago
Read 2 more answers
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