3 years ago

Given A= {1,2,3,4,5,6,7,8,9} and B={2,4,6,8}, what is A U B?

Mathematics

1 answer:

Ugo [173]3 years ago

8 0

A u B = { 1,2,3,4,5,6,7,8,9}

All elements of both sets , if they are repeating , you don't have to write them twice.

You might be interested in

5 weeks at a timeshare condominium costs $2975. Assuming the condominium can be rented for less than a full week, how much will

Andrews [41]

4 days will cost $2380

6 0

3 years ago

Read 2 more answers

1/4x -18=-22 please include step by step i already know the answer i just need step by step. will award brainliest.

Zolol [24]

Answer:

Hope this helps

Step-by-step explanation:

1/4x = -22 + 18

1/4x = -4

4(1/4x) = 4(-4)

x = -16

8 0

3 years ago

35.7÷11.4≈<br>(brainiest included for correct answer)(if not report)

DiKsa [7]

Answer:

Step-by-step explanation:

about 3

4 0

3 years ago

Completing the square:

vichka [17]

Answer:

Step-by-step explanation:

Key to this method is remembering that

$(a+b)^2 = a^2 + 2ab + b^2$

So, if you divide the coefficient of x by 2 and square it, that will complete the square. With that in mind, things are easy.

6/2 = 3, so add $3^2 = 9$

$x^2+6x+9 = (x+3)^2$

So, c=9

Similarly, for the other two,

$c = (\frac{-34}{2} )^2 = (-17)^2 = 289$

You don't really have to worry about the sign, since squaring will always make it positive

$(\frac{25}{13}) ^2 = \frac{625}{169}$

7 0

3 years ago

Toby exercises 14 hours a week. John exercises 20% more than Toby and Jenny exercises two more hours than John. Which expression

sleet_krkn [62]

John exercised 20% more than Toby. So the number of hours that John exercises per week is 14 + 0.2(14) = 14 + 2.8 = 16.8.

Jenny exercises two more hours than John. So the number of hours that Jenny exercises per week is 16.8 + 2 = 18.8.

So an expression representing the number of hours that Jenny exercises after w weeks is 18.8w.

8 0

3 years ago

Read 2 more answers