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Elza [17]
3 years ago
12

A bag has 4 red balls and 8 blue balls. find the probability of choosing a blue ball at random

Mathematics
2 answers:
Inessa [10]3 years ago
3 0
I believe the answer would be 8/12 and reduced to 2/3 when you divide the top and bottom by 4
Over [174]3 years ago
3 0
4+8=12 balls altogether,
P(blue)=8/12=2/3 
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Please help me with this question.
Inessa [10]

Answer:

B

Step-by-step explanation:

The SA of a cone is A=pi*r^2+pi*r*s

So instead of pi*5^2, it should be pi*3*5 (5 is the length of the slant).

5 0
3 years ago
Read 2 more answers
Nicolas has $650 to deposit into two different savings accounts. • Nicolas will deposit $400 into Account I, which earns 3.5% an
Alinara [238K]
C) $694.25

Why?
Because you want to times the interest by 2 (1 is for one year but u want to find the amount after two years) then you multiply the amount given to each bank separately so:

400*0.07 (7% which is 7/100) = 28
250*0.065 (6.5% which is 65/1000) = 16.25

Then u add the interests together:
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Finally you add that to the amount you started with:
$650+$44.25= $694.25
5 0
3 years ago
Pick all the names for this shape.
Nutka1998 [239]

Answer:

quadrilateral \\ rectangle \\ parallellogram \\  \\  \\  \\ all \: the \: three \: except \: square..

8 0
3 years ago
PLEASE HELPPPP
Studentka2010 [4]

Answer:

1774.67π mm³

Step-by-step explanation:

Please find attached to this question, the required diagram.

From the question, we are told we have a spherical mold.

We would find the volume of a spherical mold using the formula for the volume of a sphere.

The volume of a sphere is calculated as : 4/3πr³

From the attached diagram, we are given the Diameter do the spherical mold as: 22mm

Radius of the spherical mold = Diameter ÷ 2 = 22mm÷ 2 = 11mm

The volume of the spherical mold = 4/3 × π × 11³

= 1774.6666667π mm³

Approximately and leaving it in terms of pi (π)= 1774.67π mm³

5 0
3 years ago
PLS HELP!!<br><br> Given the diagram below, find the value of x.<br><br> The value of x is
Paha777 [63]

Answer:

44°

Step-by-step explanation:

180-30-14=136

180-136

44

7 0
3 years ago
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