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3 years ago

URGENTE, POR FAVOR !!!!!!!!!!!

Mathematics

1 answer:

il63 [147K]3 years ago

6 0

Answer:

ffefecrvfffffStep-by-step explanation:

evgtbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbttffff

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find a two variable identity by incorporating a second variable y into the single variable identity note that x>1,x>y, and

Talja [164]

we in the same boat we should work together

7 0

3 years ago

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Two cards are drawn without replacement from a standard deck of 52 playing cards. What is the probability of choosing a red card

joja [24]

Answer: $\dfrac{3}{51}$

Step-by-step explanation:

Given : The total number of cards in a deck = 52

Number of red cards = 26

There are two types of red cards : diamond and heart.

Number of diamond cards = 13

The probability that the first card is a diamond :-

$\dfrac{13}{52}=\dfrac{1}{4}$

Since diamond is also a red card.

Now, the total cards left = 51

The number of red cards left = 12

The probability that the second card is a red card (without repetition) is given by :-

$\dfrac{12}{51}$

Now, the probability of choosing a red card for the second card drawn, if the first card, drawn without replacement, was a diamond :-

$\dfrac{1}{4}\times\dfrac{12}{51}=\dfrac{3}{51}$

7 0

4 years ago

What is the sum of 2equal numbers

meriva

Let the number be x
The sum of 2 equal numbers is simply x+x or 2x.

5 0

4 years ago

Pleeeeaaaseee help!!

PSYCHO15rus [73]

Answer:

Step-by-step explanation:

The equation is 3x - 5y =20.

Suppose we start with (5, y). What value of y is a solution of this equation?

Substitute 5 for x in 3x - 5y =20, obtaining: 3(5) - 5y = 20.

Then -5y = 5, and y = -1. Thus, (5, -1) is a solution of 3x - 5y =20.

We have (x, 2). Find the value of x that makes (x, 2) a solution of 3x - 5y =20.

Replace y with 2: 3x - 5(2) =20

Then 3x = 30, and x = 10. So (10, 2) is a solution of 3x - 5y =20.

3 0

4 years ago

Alright guys one last question for you, tried using the Pythagorean Theorem but the answer didn't make sense at all.

Rom4ik [11]

Answer:

$\boxed{15}$

Step-by-step explanation:

First using the Pythagorean theorem, we know the hypotenuse $(c^2)$ is 39 and one of the legs $(b^2)$ is 36. So we would have:

$a^2+36^2=39^2=a^2+1296=1521\\\text{Subtract 1296 on both sides:}\\a^2=225\\\text{find the square root of 225}\\\sqrt{225}=15$

So we have our answer as $\boxed{15}$

Hope this helps.

5 0

3 years ago

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