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3 years ago

15

A coin is flipped 150 times. The results of the experiment are shown in the following table:

1 answer:

Sergio [31]3 years ago

8 0

The answer is C because theoretically it should have a 50% of landing heads but instead it lands heads 56% of the time. Thus this is 6% higher than 50%. It's not D because there is not specified detail of how the person got this data so you can assume that the person did a fair survey/data collection.

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Please Help!!!!!!! Meryl spends a total of $68.82 for 2 pairs of sneakers

timama [110]

2x+3-5.32=68.82

2x= 71.14

x=35.57

each sneaker costs $35.57

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3 years ago

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Please help me!! Please

Katen [24]

X is less than or equal to -3
explanation
first, i added 6x to both sides
next, i subtracted 25 from both sides
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2 years ago

Which sign makes this statement true

Vesna [10]

Answer:

The = sign

Step-by-step explanation:

1 11/20 = 31/20 = 1.55 and 1.55 =1.55

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3 years ago

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Which of the following is NOT equal to sin pi/3

Yanka [14]

Answer:

D) $sin(\frac{4\pi }{3} ) = sin(\pi +\frac{\pi }{3} ) = -sin\frac{\pi }{3}$

Step-by-step explanation:

A)

$sin(\frac{2\pi }{3} ) = sin ( \pi - \frac{\pi }{3} ) = sin\frac{\pi }{3}$

B)

$cos (\frac{\pi }{6} ) = cos ( \frac{\pi }{2} - \frac{\pi }{3} ) = sin(\frac{\pi }{3})$

C)

$cos (\frac{11\pi }{6} ) = cos ( \frac{3\pi }{2} + \frac{\pi }{3} ) = sin(\frac{\pi }{3})$

D)

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8 0

3 years ago

Solve for x. 5x^2 – 45 = 0

mamaluj [8]

5x^2-45=0

<em>*Add 45 to both sides*</em>

5x^2=45

<em>*Divide both sides by 5*</em>

x^2=9

<em>*Take the square root of both sides*</em>

x=+/-9

Hope this helps!!

3 0

3 years ago

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