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3 years ago

Two bags contain coloured cubes.

Mathematics

1 answer:

spayn [35]3 years ago

8 0

Answer:

equal

Step-by-step explanation:

Bag 1 has 3 red cubes and 1 blue cube. = 4 cubes

Bag 2 has 3 green cubes, 1 yellow cube, and 1 red cube.= 5 cubes

P ( red bag 1) = red /total = 3/4

P (yellow bag 2) = yellow /total = 1/5

P(red bag1 , yellow bag2) = 3/4* 1/5 = 3/20

P ( blue bag 1) =blue /total =1/4

P (green bag 2) = green /total = 3/5

P(blue bag1 , green bag2) = 1/4* 3/5 = 3/20

The probabilities are equal

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Find the radius of the circle whose equation is x^2 + y^2 = 4.

ludmilkaskok [199]

Answer:

Radius = 2.

Step-by-step explanation:

We have been given equation of the circle which is $x^2 + y^2 = 4$ .

Now we need to find the radius of the given circle $x^2 + y^2 = 4$ .

To find that let's compare with the formula of the circle with standard equation of the circle $x^2 + y^2 = r^2$ , where r is the radius.

We get $r^2 = 4$

take square root of both sides.

$r=2$

Hence radius of the given circle is r = 2.

3 0

3 years ago

Eight students ran a 180-meter course during their physical education class. The chart shows the time it took each student to co

lakkis [162]

Answer:

Step-by-step explanation:

Speed of student 1 = 180/30= 6 m/sec

speed of student 2= 180/32= 5.62 m/sec

speed of student 3= 180/33= 5.45 m/sec

speed of student 4= 180/35= 5.14 m/sec

speed of student 5= 180/37= 4.86 m/sec

speed of student 6= 180/38= 4.73 m/sec

speed of student 7= 180/40= 4.5 m/sec

speed of student 8= 180/32= 4 m/sec

average speed is = (6+5.62+5.45+5.14+4.86+4.73+4.5+4)/8

hence, average speed is= 5.04

hence, the average speed of student 1 = 6m/sec

how much faster is average speed of student 1 than average speed= 6- 5.04 = 0.96

hence, average speed of student 1 is 0.96 m/sec more thanthe average speed.

4 0

3 years ago

Anyone can help me with this ??

mr_godi [17]

3=1 the statement is false

8 0

3 years ago

Please someone help answer correctly !!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!

kogti [31]

Answer:

z = 44

Step-by-step explanation:

180 - (44+52) = 180 - 96 = 84º

180 - 84 = 96º

180 - (96 + 40) = z

180 - 136 = z

z = 44

5 0

3 years ago

A hat contains 3 blue and 5 black tickets.

Kruka [31]

Answer:

3/8

Step-by-step explanation:

If there are three blue tickets out if 8, (which is 3 blue and 5 black put together), you'd have a 3/8 chance of pulling a blue ticket.

6 0

3 years ago