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olga2289 [7]
3 years ago
13

Select ALL the correct answers. Which of these relations are functions?

Mathematics
1 answer:
klio [65]3 years ago
7 0
It’s the second one, the third one, and the fourth one. I hope this helps!
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The mathematics department of a college has 6 male professors, 9 female professors, 5 male teaching assistants, and 6 female tea
Hitman42 [59]

Given:

6 male professores

9 female professores

5 male teaching assistants

6 female teaching assistants

Sol:.

N(A\text{ or B)=N(A)+N(B)-N(A and B)}

N (professors)

\begin{gathered} =6+9 \\ =15 \end{gathered}

N(Male)

\begin{gathered} =6+5 \\ =11 \end{gathered}

N(professors and male)

=6

N(professors OR male) = N(professors) + N(males) -N(professor OR male)

\begin{gathered} N(\text{ Professors OR male)=15+11-6} \\ =20 \end{gathered}

N(People to choose from)

\begin{gathered} =6+9+5+6 \\ =26 \end{gathered}

Then probablitiy is:

\begin{gathered} =\frac{20}{26} \\ =\frac{10}{13} \end{gathered}

Then the probability is 10/13

6 0
9 months ago
Witch division problem does the number line below best illustrated
krok68 [10]
10 divided by 2 =5 because it ends at 10 and goes back by 2 and there are 5 loops
6 0
2 years ago
Which choice is equivalent to the expression √20 + √80
salantis [7]

Answer:

13.41

Step-by-step explanation:

Hope it helps!

7 0
2 years ago
Read 2 more answers
A local university has 2.815 Hispanic students out of a total student population of 20.250. Do the Hispanic students have propor
Over [174]
Given:
The race percent of population is
White:      45%
Hispanic: 27%
Black:       18%
Asian:        7%
Other:        3%

Part a.
The university has 2,815 Hispanic out of the 20,250 total population.
This is equivalent to (2815/20250)*100 = 13.9%
This percentage is less than 27%, so Hispanics do not have proportional representation.

Answer: The Hispanic students do not have proportional representation.

Part b.
Let x =  the extra number of Hispanic students needed for proportional representation of 27% or 0.27.
Then
(2815 + x)/20250 = 0.27
2815 + x = 20250*0.27 = 5467.5
x = 5467.5 - 2815 = 2652.5

This means that 2,653 extra Hispanic students are required for a population of 20,250 students.

Answer: 2,653 extra Hispanic students.

5 0
3 years ago
A-2b= -10 for b plsssss helpppp
Artyom0805 [142]
A-2b=-10
b=-10-a.
Hope this is the answer
Mark as brainliest
5 0
3 years ago
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