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kirza4 [7]
2 years ago
6

hello anyone pls help me I'm so stuck I'm scared pls help me I promise I give many points and I'll give the brainliest:(​

Mathematics
2 answers:
r-ruslan [8.4K]2 years ago
5 0

Answer:

It is basically a question of probability so

Probability =<u> Number of event</u>

                     Number of sample space

Number of sample space = 12

Since the event needed is a prime number so first list the numbers 1 to 12 which is (1,2,3,4,5,6,7,8,9,10,11,12) so the prime numbers there are (2,3,5,7,11) so therefore the number  of event will be 5

THEREFORE:

p = \frac{5}{12}

     

Step-by-step explanation:

Genrish500 [490]2 years ago
3 0

Answer:

2 or3 ,5,7,11 I suppose please correct if wrong

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3 years ago
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larisa86 [58]
<u>Part A
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<u />To estimate this, we should first look at our fractions and see if they can be combined to form a whole number. In this case, \frac{3}{5} and \frac{2}{3} equal approximately 1. We can add this "1" to the other to full gallons to estimate that the painter needs about 3 gallons.

<u>Part B
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<u /><u />To find the exact amount, we should first change the mixed numbers to improper fractions. We do this by multiplying the denominator by the whole number, adding the numerator, and placing that value over the denominator.

1 \frac{3}{5} \\ \\  (5*1)+3 =8 \\  \\  \frac{8}{5}  \\  \\  \\ \\  1 \frac{2}{3} \\  \\ (3*1)+2=5 \\  \\  \frac{5}{3}  &#10;

Now, we need to find the least common denominator. This is the lowest value that both denominators will divide evenly into. In this case, that number is 15.

Next, we should multiply both fractions so that the denominator is that number. Remember that we must also multiply the numerator for the fraction to remain equivalent to its original value.

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Now, we can simply add our numerators.

25+24=49

We know that he needs \frac{49}{15} gallons of paint, but this is not in the most simplified format. To simplify, we need to turn our improper fraction back to a mixed number. To do this, we need to divide our numerator by the denominator to create our whole number, and the remainder becomes our new numerator.

\frac{49}{15} \\  \\ 49 / 15 = 3(Remainder: 4) \\  \\  3\frac{4}{15}

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4 0
3 years ago
WILL GIVE BRAINLIEST! HELP ASAP!
makkiz [27]

Answer:

any nuber less then 3.5  and 5th awnser

Step-by-step explanation:

x is less then 3.5 so any    number less then 3.5

5th one is true too because you can go into negitves  and tehre is are infanite negitives

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3 years ago
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(-2,1). Hope this helps!
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3 years ago
What is the value of the expression
Stels [109]

(-\dfrac{3^2}{3^3} )^2 = (-\dfrac{1}{3} )^2 = \dfrac{1}{9}


OR (in more details):


(-\dfrac{3^2}{3^3} )^2 = (-3^{2-3})^2 = (-3^{-1})^2 = (-\dfrac{1}{3} )^2 = \dfrac{1}{9}


5 0
4 years ago
Read 2 more answers
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