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PIT_PIT [208]
3 years ago
9

A red marble is selected at random from a bag containing 2 blues and 9 red marbles and is not replaced.the probability that a se

cond marble selected will also be red is
Mathematics
2 answers:
meriva3 years ago
3 0

Answer:

 So the probability of drawing a second red marble is 8 out 10 or 0.8.

Step-by-step explanation:

It seems to me that if one red marble is already gone, there are 8 red marbles left out of a total of 10 marbles.

So the probability of drawing a second red marble is 8 out 10 or 0.8.

liraira [26]3 years ago
3 0

Answer:

8/10 or 4/5 or 0.8

Step-by-step explanation:

since one red marble is already taken, there are only eight remaining now and the total number of marbles are ten now. So you have to divide.

Therefore, the probability is 8/10 or 4/5 or 0.8.

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an astronomical unit is about 9.3•10^7 miles. Mercury is about 0.38 astronomical units from the sun. What is mercury’s distance
eimsori [14]

Answer:

Multiply .38 * 9.3 x 10^7

Equals 35,340,000  miles

Step-by-step explanation:

4 0
3 years ago
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we can start a relationship together

Step-by-step explanation:

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6 0
3 years ago
Batman slings a 320 ft. climbing cable from a helicopter to his batmobile below. If the cable tightens up
Leokris [45]

Answer:

188 ft

Step-by-step explanation:

         helicopter

___________________________________________

               |\   54°

               |    \

               |       \    320 ft

               |          \

               |      54°  \

-------------+--------------+-------------------------------

                        x

cos 54° = x/(320 ft)

x = 320 ft × cos 54°

x = 188 ft

Answer: 188 ft

5 0
2 years ago
How would you describe the difference between the graphs of f(x) = x2 +4 and<br> G(y) = y2 +4 ?
ivann1987 [24]

Answer:

They're the exact same, except for the variables.

Step-by-step explanation:

Since the variable can be any letter, it is the exact same equation but with different letters as x. Although the equation of G(y) has a y instead of x, you know y is the x and g(y) is the y because the y inside of the parentheses tells us that y is the independent variable.

5 0
3 years ago
3(x- 1) - 8 = 4 (1+ x) = +5
katrin [286]

Answer:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

x = 5 x = 4

Step-by-step explanation:

6 0
2 years ago
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