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Salsk061 [2.6K]
3 years ago
12

You randomly draw a marble from a bag, record its color, and then replace it. You draw a red marble 3 out of 20 times. What is t

he experimental probability that the next marble will be red? Write your answer as a fraction, decimal, or percent. The experimental probability that the next marble will be red
Mathematics
1 answer:
liraira [26]3 years ago
4 0

Fraction: 9/100

Decimal: 0.09

Percentage: 9%

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Can someone help me figure this out no guessing
laiz [17]
Your answer is x = 2.92 = 3.
To answer this question you need to use trigonometry, so the first step is to identify the hypotenuse, opposite, and adjacent.
Because the angle 73 is in the bottom corner next to the length x, we know that the length x is the adjacent. The length 10 is opposite the right angle so this must be the hypotenuse.
We know that cos(θ) = adjacent/hypotenuse, so we can substitute in what we know:
cos(θ) = adjacent/hypotenuse
cos(73) = x/10
Now we can rearrange for x:
cos(73) = x/10
× 10
cos(73) × 10 = x
Finally we just type this into the calculator and get the answer as 2.92 or 3.
I hope this helps!
5 0
3 years ago
Select an equation for this graph please help me.
MrRissso [65]

A is the answer.

First, figure out all the coordinates for the points marked red( I Did this for all except first one, which was not on the right point)

They were:

-1,1

0,2

1,4

2,8

3,16.

Then, we must do trial and error for each of the options until we find one that fits perfectly. Luckily, the first option was right!

Hope this helps

3 0
3 years ago
I need help<br> please someone
mina [271]

Answer:

second option

Step-by-step explanation:

x - y= 28

x+y = 56

4 0
3 years ago
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iragen [17]
The distance between the two cities is 500 miles. Since each inch represents 125 miles, you multiply 4*125 to get 500 miles.
7 0
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Twenty-seven is smaller than five times a number increased by seven.
vfiekz [6]

Answer:

4

Step-by-step explanation:

4=x

5x+7 =27

27=27

:(((

5 0
3 years ago
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