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Zanzabum
3 years ago
12

There are 10 balls in a bag numbered from to 10. Three balls are selected at random without replacement. a. How many different w

ays are there of selecting the three balls? b. What is the probability that one of the balls selected is the number 5?
Mathematics
1 answer:
zhenek [66]3 years ago
4 0

A) 30 possible combinations

B)1/10

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Which function has the domain x>or= -11
iogann1982 [59]
I'm assuming this is multiple choice and you forgot to post the answers. I'll take a guess and say it probably looks something like this:
y = \sqrt{x + 11}
Because you can't take the square root of a negative number without getting an imaginary result, resulting in the function having a closed domain limit.
6 0
3 years ago
A kite flying in the air has a 4-m line attached to it. Its line is pulled taut and casts a 3-m shadow. Find the height of the k
NNADVOKAT [17]

Answer:

2.6

Step-by-step explanation:

I used the a^2+b^2=c^2 to get this answer. I squared all the number given and got 16 and 9. Then I subtract them to get 7. Finally square 7 off and got 2.6 as the final answer

Hope this helped

\sqrt{7}  = 2.6

3 0
2 years ago
Joseph and Isabelle left Omyra’s house at the same time. Joseph jogged north at 8 kilometers per hour, while Isabelle rode her b
Artist 52 [7]
For this case the distance will be given by:
 d ^ 2 = (12 * 1.5) ^ 2 + (8 * 1.5) ^ 2
 Rewriting we have:
 d ^ 2 = (18) ^ 2 + (12) ^ 2
 d ^ 2 = 324 + 144
 d ^ 2 = 468
 d = root (468)
 d = 21.63 Km
 Answer:
 
1) She did not find the full distance each traveled in 1.5 hours.
 
2) She should have used 12 km for Joseph's distance and 18 km for Isabelle's distance.
8 0
3 years ago
Read 2 more answers
Give the answer please
Nataliya [291]

The inverse of a function is given as √x - 1

<h3>Inverse of a function</h3>

To get the inverse of any function f(x) we need to ensure that it passes the horizontal line test.

Given the following function

f(x) = (x+1)^2

Let y= f(x) to have:

y = (x+1)^2

Replace y with x to have:

x = (y+1)^2

Make y the subject of the formula

√x =y + 1

Subtract 1 from both sides

√x - 1 = y

Swap

y = √x - 1

Hence the inverse of a function is given as √x - 1

Learn more on inverse of a function here: brainly.com/question/3831584

#SPJ1

5 0
1 year ago
3x+2&gt;2 and 3x less than or equal to 6
Y_Kistochka [10]
3x + 2 > 2
3x > 2 - 2
3x > 0
x > 0

3x < = 6
x < = 6

0 < x < = 6
4 0
3 years ago
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