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bazaltina [42]
3 years ago
8

To​ ​ get​ ​ an​ ​ accurate​ ​ result,​ ​ a​ ​ sample​ ​ size​ ​ must​ ​ be

Mathematics
1 answer:
levacccp [35]3 years ago
8 0
At least 30 ..................
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PLEASE HELP ANYONE HELP ?!!!!!!!!!!!!!!!)))):::::
stealth61 [152]

Answer:

3x

Step-by-step explanation:

givens: x=4

now try your options:

3(4)+3=15

12+3=15

15=15

The first option is correct, therefore the answer is 3x

3 0
3 years ago
Read 2 more answers
The longest side of an acute isosceles triangle is 12 centimeters, Rounded to the nearest tenth, what is the
vodomira [7]

Answer:

8.5

Step-by-step explanation:

5 0
2 years ago
What is the solution to the equation 2 (x-3) ^2 =13 help help ASAP !
olganol [36]

Answer:

3+sqrt(13/2)

3-sqrt(13/2)

Step-by-step explanation:

2 (x-3) ^2 =13

Divide each side by 2

2/2 (x-3) ^2 =13/2

(x-3) ^2 =13/2

Take the square root of each side

sqrt((x-3) ^2) =±sqrt(13/2)

x-3 = ±sqrt(13/2)

Add 3 to each side

x-3+3 = 3±sqrt(13/2)

x = 3±sqrt(13/2)

4 0
3 years ago
Read 2 more answers
Emily flipped a coin 30 times the coin landed heads up nine times and tails up 21 times
lara [203]
Part A)
 The coin landed on heads 9 times out of 30 flips, so the experimental probability is 9/30, which reduces to 3/10 probability.

Part B)
 Theoretically a coin has a 1/2 probability of landing on heads each flip


8 0
3 years ago
Convert 29.5% to a decimal
cricket20 [7]
Whatever% of anything is just (whatever/100) * anything.

thus 29.5% of something, is just (29.5/100) * something, and the decimal form of 29.5% is just 29.5/100 or the quotient of 29.5÷100.
7 0
3 years ago
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