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3 years ago

If you have a deck of cards what is the probability that you will draw a 9 or a heart

Mathematics

1 answer:

Vesna [10]3 years ago

4 0

The probability would be 1/4 for hearts 1/13 for the number card I think this is right sorry if it’s not

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Please help! I attached the question below.

kompoz [17]

Answer:

$\frac{2(c+2)}{c(c-2)}$

Step-by-step explanation:

$\frac{c^{2}-4 }{6c^{4}+15c^{3}}=\frac{(c-2)(c+2)}{c(6c^{3}+15c^{2}) }$

Identity used:

$a^{2}-b^{2}=(a-b)(a+b)$

$\frac{c^{2}-4c+4}{12c^{3}+30c^{2}}=\frac{(c-2)^{2}}{2(6c^{3}+15c^{2}) }$

Now let us divide the modified expressions:

$\frac{(c-2)(c+2)}{c(6c^{3}+15c^{2})}$ ÷ $\frac{(c-2)^2}{2(6c^{3}+15c^{2}) }$

we get:

$\frac{2(c+2)}{c(c-2)}$

5 0

3 years ago

I need help with solving this

leva [86]

Answer:

Step-by-step explanation:

Positive 49 not -49

3 0

3 years ago

Evaluate a + b to the 2nd power for a = 2 and b = 3

jarptica [38.1K]

Answer:

Step-by-step explanation:

You add 2+3 and get 5. Then you square it to get 25.

4 0

3 years ago

Read 2 more answers

Mandy collected 4 times as many shells as Cameron. Together they collected 40 shells. How many shells did Mandy collect. Write a

MatroZZZ [7]

10, because 40 divided by 4 is ten

6 0

3 years ago

The rabbit population in a certain area is 500% of last year's population. There are 700 rabbits this year. How many were the

Ksenya-84 [330]

For this case we have the following data:

700 rabbits that represent 500% of the population of last year. So, to obtain the rabbit population of last year, we developed a rule of three:

700 -----------> 500%

x ---------------> 100%

Where x represents the rabbit population of last year.

Clearing x we have:

$x = \frac{ 100 * 700}{500}$

$x = 140$ rabbits

In this way, last year there was a population of 140 rabbits.

Answer:

140 rabbits

8 0

3 years ago