1 in 38.
Nothing much to say about this problem. There are 38 spaces on the roulette wheel and an every space on a fair wheel has an equal probability of being selected. So you would expect 1/38 = 0.026315789 = 2.6315789% of the time for the number 21 to show up.
First, fint the roots of the equation
1.

2. You can see that this equation has two different real roots. Note that you can make this statement without finding roots, only knowing the value of discriminant: since D=81>0, then the equation has two different real roots.
Answer:
4 is the answer
Step-by-step explanation:
you can - or + the equation only then when the letter is same z and z both are same so you can - them and get the answer.
There are some calculator shortcuts that can be used on a Windows OS and they are:
- Ctrl + R (recall from memory)
- Ctrl + L (erase memory)
<h3>What is a Calculator?</h3>
This refers to the mathematical tool that is used to make scientific calculations to find an expected result and is fully automated.
Hence, we can see that calculator shortcuts in a Windows OS exists and some of them include the combination of keys on a keyboard for quick actions such as clearing and recalling from memory, among many others.
Read more about calculators here:
brainly.com/question/164042
#SPJ1
Answer:
-6
Step-by-step explanation:
-2 ^3x3 = 24
-30 + 24 = -6