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sergey [27]
2 years ago
14

Which relation is a function?

Mathematics
1 answer:
tresset_1 [31]2 years ago
7 0

Answer: It is the top right one.

Step-by-step explanation: That one passes the vertical line test. A function can't have any points that have the same x-coordinate.

You might be interested in
Whitch is the value of this expression when a=5 and k=-2
lana66690 [7]

Answer:

25/9

Step-by-step explanation:

25/9

7 0
2 years ago
What does i^739 equal? explain how you found your answer.
Sophie [7]
<h3>Answer:   -i</h3>

========================================================

Explanation:

i = sqrt(-1)

Lets list out the first few powers of i

  • i^0 = 1
  • i^1 = i
  • i^2 = -1
  • i^3 = i*i^2 = i*(-1) = -i
  • i^4 = (i^2)^2 = (-1)^2 = 1

By the time we reach the fourth power, we repeat the cycle over again (since i^0 is also equal to 1). The cycle is of length 4, which means we'll divide the exponent over 4 to find the remainder. Ignore the quotient. That remainder will determine if we go for i^0, i^1, i^2 or i^3.

For example, i^5 = i^1 because 5/4 leads to a remainder 1.

Another example: i^6 = i^2 since 6/4 = 1 remainder 2

Again, we only care about the remainder to find out which bin we land on.

-------------

Turning to the question your teacher gave you, we have,

739/4 = 184 remainder 3

So i^739 = i^3 = -i

<h3>-i is the final answer</h3>

--------------

Side notes:

  • if i^a = i^b, then a-b is a multiple of 4
  • Recall that the divisibility by 4 trick involves looking at the last two digits of the number. So i^739 is identical to i^39.
4 0
2 years ago
The figure shows a kite inside a rectangle. Which expression represents the area of the shaded region? 2x2 4x2 6x2 8x2
Savatey [412]
The picture in the attached figure

we know that
area of the <span>the shaded region=area of rectangle -area of a kite

area of rectangle=(3x+x)*(x+x)----> 4x*2x---> 8x</span>²

area of a kite=(1/2)*[d1*d2]
where d1 and d2 are the diagonals
d1=4x
d2=2x
so
area of a kite=(1/2)*[4x*2x]----> 4x²

area of the the shaded region=8x²-4x²-----> 4x²

the answer is 
4x²

4 0
2 years ago
Read 2 more answers
A restaurant orders corn tortillas and flour tortillas. The ratio of the number of corn tortillas is 4:5. What is the ratio of t
Naddika [18.5K]

Answer:

Pretty sure 5:9.  

Step-by-step explanation:

The total tortillas are 9. The total number of flour tortillas is 5. You get 5:9.

Hope I helped! :) Sorry if it's wrong :( Have an amazing day!!

3 0
3 years ago
Read 2 more answers
Help pls I'm running out of points &amp; brain cells lol T^T
marshall27 [118]

Answer:

- 4.7

Step-by-step explanation:

Step 1:

c - 1.5 + 6.8 = 0.6

Step 2:

c + 5.3 = 0.6

Step 3:

c = 0.6 - 5.3

Answer:

c = - 4.7

Hope This Helps :)

3 0
2 years ago
Read 2 more answers
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