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MrMuchimi
3 years ago
8

A team of five kids is randomly chosen from a class of 20 students. An outcome of the selection process is the set of five kids

selected. What is the size of the same space
Mathematics
1 answer:
vichka [17]3 years ago
7 0

Answer:

S= 4

Step-by-step explanation:

Given

Total = 20

Selection = 5

Required

Determine the size of sample space

Represent this with S

S is calculated by dividing the total number of kids by the number of selection.

S = \frac{Total}{Selection}

S = \frac{20}{5}

S= 4

<em>Hence, the sample space has a size of 4</em>

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Find the value of this expression if x=-7 x^2+5/x+1
Ugo [173]

Answer:

-9

Step-by-step explanation:

Substitute -7 for x. So we get ((-7)^2+5)/(-7+1). We start with the exponent. (-7)^2 is 49. Then we add 5 to that, and get 54. -7+1 is -6. So we have 54/-6, which is equal to -9.

4 0
3 years ago
If DE = 7x + 3 and EF = 9x - 19,<br> then EF = ?
ANEK [815]

Answer:

Step-by-step explanation:

7x + 3 = 9x - 19

-2x + 3 = -19

-2x = -22

x = 11

DE= 7(11) + 3 = 77 + 3 = 80

EF = 9(11) - 19 = 99 - 19 = 80

80 + 80 = 160 for DF

6 0
3 years ago
Moira solved rubik's cube in 3 minutes and 30 seconds. what is moira's solving rate?
Katarina [22]

In the context of rubiks cube solving the rate at which one can solve a rubiks cube is determined by the number of cubes solved and the time taken

In this question we were told that moira solved a rubiks cube in 3 minutes 30 seconds

Let us convert time total time to seconds

3 minutes 30  in seconds = 3*60+ 30 = 180+30 = 210 seconds

Hence  Moira rate  = 1 rubiks cube/210 seconds

Learn more about rate:

brainly.com/question/25184007

7 0
3 years ago
2x^2 + 3x - 12 when x = 5 help pls
cluponka [151]

\huge\textsf{Hey there!}

\mathsf{2x^2 + 3x - 12}

\mathsf{= 2(5)^2 + 3(5) - 12}

\mathsf{5^2}

\mathsf{= 5 \times 5}

\mathsf{\bf = 25}

\mathsf{2(25) + 3(5) - 12}

\mathsf{2(25)}

\mathsf{= \bf 50}

\mathsf{3(5)}

\mathsf{= \bf 15}

\mathsf{= 50 + 15 -  12}

\mathsf{50 + 15}

\mathsf{= \bf 65}

65 - 12

\mathsf{= \bf 53}

\boxed{\boxed{\huge\textsf{Answer: \bf 53}}}\huge\checkmark

\large\textsf{Good luck on your assignment and enjoy your day!}

~\frak{Amphitrite1040:)}

5 0
3 years ago
Read 2 more answers
A rectangular garden has an area of 144ft. If the base is 8ft long, what is the height ?
Alekssandra [29.7K]
A. 18
Formula for area is LxW.
Divide 144 by 8 and you get 18.
7 0
3 years ago
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