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Veseljchak [2.6K]
3 years ago
7

Four chips are distinctly labeled with the digits 2, 3, 1 and 7, one chip for each digit. Two chips are drawn at random without

replacement and placed in the order which they are drawn, from left to right, to form a two-digit number. What is the probability that the two-digit number is a prime number? Express your answer as a common fraction
Mathematics
1 answer:
gladu [14]3 years ago
7 0
Sample space is 12.5 of them are composite no.s.so 7 is prime.so,,,answer is 7/12
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Rectangualr prism solid figure can be made woth more than 1 shape
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Decimals between 10 and 15 with an interval of .75 between each pair of decimals
d1i1m1o1n [39]
This is a sum that needs understanding the starting and the ending number first. then you should understand that between the starting and the ending number there has to be pairs of numbers with a difference of 0.75.
The numbers are:
10.75, 11.50, 12.25, 13.00, 13.75, 14.50.
6 0
4 years ago
What is a - 5 - 6a + 3
Yakvenalex [24]

Answer:

-7-5a

Step-by-step

i simplified it if thats what it meant

4 0
3 years ago
Please help it would be much appreciated!
sergiy2304 [10]

Answer:

Part a) Option d

Part b) Option a

Step-by-step explanation:

Part a

if we look at the options given and the data available

Option a) x^4+9

Putting x= 2 we get (2^4) + 9 =25

Putting x= 3 we get (3^4) + 9 =90 but f(x) =125 so not correct option

Option b) (4^x)+9

Putting x= 2 we get (4^2) + 9 =25

Putting x= 3 we get (4^3) + 9 =73 but f(x) =125 so not correct option

Option c) x^5

Putting x= 2 we get (2^5)  =32 but f(x) =25 so not correct option

Option d) 5^x

Putting x= 2 we get (5^2)  =25

Putting x= 3 we get (5^3)  =125

Putting x= 4 we get (5^4)  =625

So Option d is correct.

Part (b)

3(2)^3x

can be solved as:

=3(2^3)^x

=3(8)^x

So, correct option is a

8 0
3 years ago
I don't know what it means
xz_007 [3.2K]

Answer:   x + 1 = 15

Step-by-step explanation:

solve -

x= 15 - 1

x = 14

x is a variable so it's not fix value in math

7 0
3 years ago
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