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3 years ago

HELP!Please answer these for me?:)))

Mathematics

1 answer:

Paraphin [41]3 years ago

7 0

Answer:

You didn’t explain what we had to do....

Step-by-step explanation:

I’m not really sure...I’m sorry

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Suppose an opaque jar contains 3 red marbles and 10 green marbles. The following exercise refers to the experiment of picking tw

kow [346]

Answer:

$\frac{5}{13}$

Step-by-step explanation:

Given,

Red marbles = 3,

Green marbles = 10,

So, the total marbles = 3 + 10 = 13,

$\because \text{Probability}=\frac{\text{Favourable outcomes}}{\text{Total outcomes}}$

Since, here replacement is not allowed,

Thus, the probability of getting a green marble and a red marble

= first red and second green + first green second red

$=\frac{3}{13}\times \frac{10}{12}+\frac{10}{13}\times \frac{3}{12}$

$=2\times \frac{3}{13}\times \frac{10}{12}$

$=\frac{30}{78}$

$=\frac{5}{13}$

Note : The probability of getting a green marble first and a red marble second

= $\frac{10}{13}\times \frac{3}{12}$

$=\frac{30}{156}$

$=\frac{5}{26}$

4 0

4 years ago

Please help!! ill give BRAINLIEST!!!

kenny6666 [7]

1. Isosceles, right.

2. Scalene, right.

3. Equilateral, acute.

4. Scalene, acute.

5. Isosceles, acute.

6. Scalene, obtuse.

7. Scalene, obtuse.

8. Scalene, obtuse.

9. Equilateral, acute.

10. Isosceles, obtuse.

3 0

3 years ago

Read 2 more answers

What is equivalent to 5(x + 12) A x +12 B 2x - 60 C 5x + 60 D 2x - 60

Alex73 [517]

Answer:

$\boxed{\boxed{\pink{\sf Option \ C \ is \ correct .}}}$

Step-by-step explanation:

Given to us is , 5 ( x + 12 ) and we need to find which is its equivalent in the given options .

So,

$\bf = 5 ( x + 12 ) \\\\=\bf 5x + 5\times 12 \\\\=\boxed{\red{\bf 5x + 60 }}$

<h3>Hence option C is correct.</h3>

4 0

2 years ago

A right Circular cylinder has a height of 19 3/4 ft and a diameter 1 2/5 times its height . What is the volume of the cylinder?

Elanso [62]

Height = 19.75
diam = 19.75*1.4 = 27.65
radius = 13.825 

Volume = PI*19.75 * (13.825*13.825)
Volume = PI*3,774.83 
Volume = 11,858.98

7 0

4 years ago

Read 2 more answers

The number of tickets collected by joshua,kenneth,and larry is in the ratio 2:5:8.kenneth collected 85 tickets

mart [117]

I don't understand you questions

3 0

3 years ago