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3 years ago

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You randomly draw two cards from a standard deck of playing cards without replacement.what is the probability that both of the c

ards drawn from the deck of cards are face cards (king, queen, or jack)?enter answer as a faction (original fraction or a reduced fraction) or as a decimal rounded to 3 decimal places with a 0 to the left of the decimal point. if appropriate enter answer as an integer. do not enter answer as a percent.________

2 answers:

german3 years ago

7 0

There are 12 face cards in a deck, and one you draw the first face card there will be 11 left so:
(12/52)*(11/51)=132/2652=11/221

9966 [12]3 years ago

4 0

Answer:

There is a 1/221 chance that the first two cards will both be aces

Step-by-step explanation:

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The temperature falls from 0 degrees to Negative 12 and one-fourth degrees in 3 and one-half hours. Which expression finds the c

ANEK [815]

Answer:

The expression used to find the change in temperature per hour is Algebraic expression

Thus per hour; the temperature falls at the rate of $- 3\dfrac{1}{2}^0$

Step-by-step explanation:

A temperature falls from 0 to $- 12\dfrac{1}{4}$ in $3\dfrac{1}{2} \ hours$

Which expression finds the change in temperature per hour.

From the above given information;

The initial temperature is 0

The final temperature is $- 12\dfrac{1}{4}$

The change in temperature is $\Delta T = T_2 - T_1$

$\Delta T = -12\dfrac{1}{4} -0$

$\Delta T = -12.25$

Thus;

-12.25 ° = 3.5 hours

To find the change in x° per hour; we have;

x° = 1 hour

The expression used to find the change in temperature per hour is Algebraic expression

From above if we cross multiply ; we have;

(- 12.25° × 1 hour) = (x° × 3.5 hour)

Divide both sides by 3.5 hours; we have:

$\dfrac{-12.25^0*1 }{3.5}=\dfrac{ x^0 *3.5}{3.5}$

x° = - 3.5

x° = $- 3\dfrac{1}{2}$

Thus per hour; the temperature falls at the rate of $- 3\dfrac{1}{2}^0$

8 0

3 years ago

Let f(x)=-6x+3 And g(x)=5x+4 Find F×G and state it's domain

a_sh-v [17]

Answer:b

Step-by-step explanation:

6 0

3 years ago

What is a product of 2 numbers

I am Lyosha [343]

The product of a number is its multiplication answer. so the product of 3x3 would be 9.

6 0

3 years ago

Tonya and Leo each bought a cell phone at the same time. The trade-in values, in dollars, of the cell phones are modeled by the

Paha777 [63]

Answer:

The answer is Tonya's phone had the greater initial trade-in value.

Leo's phone decreases at an average rate slower than the trade in value of Tonya's phone.

Step-by-step explanation:

Given

Tonya

$f(x) = 490 * 0.88^x$

Leo

$x \to g(x)$

$0 \to 480$

$2 \to 360$

$4 \to 470$

Solving (a): The phone with greater initial value

The initial value is when x = 0. So, we have:

$f(x) = 490 * 0.88^x$

$f(0) = 490 * 0.88^0$

$f(0) = 490 * 1$

$f(0) = 490$

From Leo's table

$g(0) = 480$

By comparison;

$f(0) > g(0)$

i.e.

$490 > 480$

<em>So: Tonya's had the greater initial trade-in value</em>

Solving (b): The phone with lesser rate

An exponential function is:

$y = ab^x$

Where:

$b \to rate$

For Tonya

$b = 0.88$

For Leo, we have:

$(x_1,y_1) = (0,480)$

$(x_2,y_2) = (2,360)$

So, the equation becomes:

$y = ab^x$

$480 = ab^0$ and $360 = ab^2$

Solving $480 = ab^0$ , we have:

$480 = a * 1$

$480 = a$

$a= 480$

$360 = ab^2$ becomes

$360 = 480 * b^2$

Divide both sides by 480

$0.75 = b^2$

Take square roots

$0.87 = b$

$b=0.87$ -- Leo's rate

By comparison; Leo's rate is slower i.e. 0.87 < 0.88

6 0

3 years ago

Why is dividing by a number (like 2) the same as multiplying by its reciprocal (like 1/2)? Because diving for a whole number is

Temka [501]

Answer:

look at your other question i gave answers btw

Step-by-step explanation:

because you multiply by 1/2 you are taking half away

When you divide by 2 you also take half away

GIVE ME A BRAINLIEST I SAVED YOU AN EXTRA 100 POINTS!!!

7 0

3 years ago

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