Ask question

Ask question

All categories

r-ruslan [8.4K]

3 years ago

12

The tickets in a box are numbered from 1-20 inclusive. If a ticket is chosen at random and replaced, and then a second ticket is

drawn at random, what is the probability that the sum of their numbers is even?

1 answer:

ozzi3 years ago

3 0

7 + 5 = 12 so is an even number that the ticket the choose

You might be interested in

Find the slope of the line through the given points. (3, 7) and (3, −8)

I am Lyosha [343]

Okay, so we will be using the formula y1-y2/x1-x2:

7--8/3-3=15/0

Now, we can't divide by zero so we can just say the slope of the line is 0

7 0

3 years ago

Can u help with these questions please

Drupady [299]

In the value of y problem, the answer is y = 26

6 0

3 years ago

Olin [163]

Answer:

alaws arep logtu ak haksjfchdisme sjdjd

5 0

3 years ago

Read 2 more answers

Which rational number is one tick mark to the left of -3/4

Zolol [24]

I'm assuming each tickmark is 1/4 = 0.25

If that assumption is correct, then going one tickmark to the left of -3/4 lands you on -4/4 which simplifies to -1.

So -1 is one tickmark to the left of -3/4

Again, this all hinges on the assumption that each tickmark is 1/4 a unit away from its neighbor.

5 0

3 years ago

Solving quadratic equation using the completing method.<br>(a).x^2+6x+1=0

irina1246 [14]

Answer:

$x = -3 + 2\sqrt2 \ , \ x = -3 - 2\sqrt2$

Step-by-step explanation:

x² + 6x + 1 = 0

a = 1 , b = 6 , c = 1

$x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}\\\\x = \frac{-6 \pm \sqrt{36-4}}{2}\\\\x=\frac{-6 \pm \sqrt{32}}{2}\\\\x= \frac{-6 \pm \sqrt{16 \times 2}}{2}\\\\x = \frac{-6 +4\sqrt2 }{2}\\\\x = -3 + 2\sqrt2 \ , \ x = -3 - 2\sqrt2$

7 0

3 years ago

Read 2 more answers