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Vlad1618 [11]
3 years ago
13

There are 3 red, 1 blue and 2 yellow marbles in a bag. Once a marble is selected it is replaced. Find P(3 red marbles)

Mathematics
1 answer:
9966 [12]3 years ago
6 0

Answer:

1/5

Step-by-step explanation:

This are the possible outcome

RRR BBB YYY

RBY RYB RYY RBB

BRY BYR BRR BYY

YRB YBR YRR YBB. Total 15

R red

B blue

Y yellow

Probability = numbers of required outcome/number of possible outcome

No of possible outcome =15

No of required outcome = 3 red marbles

So

3/15

P(3red marbles) =1/5

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The adjustment of the thickness of the lens to make close vision possible is ca​
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Answer: Accommodation

Step-by-step explanation:

Accommodation is the adjustment of the optics of the eye to keep an object in focus on the retina as its distance from the eye varies.

4 0
3 years ago
Which of the following is a radical equation?<br> Ox√3=13<br> O x+√3=13<br> O√x+3=13<br> O x+3=√13
sashaice [31]

Answer:

The answer would be: √x+3=13

Step-by-step explanation:

A radical equation is an equation with at least one variable put on a radical form. In this question, there is only one kind of variable which is x. Then, you need to find the equation where x is in the radical form. The radical form can be expressed with square root symbol.

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8 0
1 year ago
1. Lenny cleans 75 cars in 5 days. At this rate, how many days will it take him to wash 90 cars? *please I need some help
Ahat [919]
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8 0
2 years ago
The sum of the measures of the angles of a triangle is 180. The sum of the measures of the second and third angles is five times
erastova [34]

Answer:

first angle be 30°

second angle be 70°

third angle be 80°

Step-by-step explanation:

first angle be x

second angle be y

third angle be z

x+y+z=180

given, y+z = 5x; z=5x-y

also, z=y+10

5x-y = y+10

5x= 10+y+y = 10+2y

x= (10+2y)/5

x+y+z=180

(10+2y)/5 + y + y+10 = 180

(10+2y)/5 = 180 -2y -10

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