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2 years ago

15

You have a standard deck of 52 cards. You pick one card from the deck and then, without putting the first card back, pick a seco

nd card. What is the probability that both cards will be 9's?

1 answer:

Oksi-84 [34.3K]2 years ago

5 0

It is an 1/221 chance of pulling 9's

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I need help with C, thank you.

guapka [62]

Simple....

$\frac{3}{4} x\ \textless \ \frac{9}{2}$

x<6

This means that on your graph at 6 it's a circle (not colored in) and it goes to the left indefinitely...

Thus, your answer.

6 0

2 years ago

Let f(x)= x^2-4x-c. Find a nonzero value of c such that f(c)=c.

Dimas [21]

Answer:

The nonzero value of c will be:

$c = 6$

Step-by-step explanation:

Given the function

$f\left(x\right)=\:x^2-4x-c$

$f\left(c\right)=\:c^2-4c-c$

as

$f(c) = c$

so

$c=\:c^2-4c-c$

switching the sides

$c^2-4c-c=c$

subtract c from both sides

$c^2-4c-c-c=c-c$

$c^2-6c=0$

$c\left(c-6\right)=0$

Using the zero factor principle

$\:If}\:ab=0\:\mathrm{then}\:a=0\:\mathrm{or}\:b=0\:\left(\mathrm{or\:both}\:a=0\:\mathrm{and}\:b=0\right)$

$c=0\quad \mathrm{or}\quad \:c-6=0$

so, the solutions to the quadratic equations are:

$c=0,\:c=6$

Therefore, a nonzero value of c will be:

$c = 6$

5 0

2 years ago

3. A communications tower is 35 m tall. From a point due

BlackZzzverrR [31]

Answer:

BT = 12.73

LT = 32m

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

9) Find the average rate of change for the function modeled by the graph 5 points

aleksklad [387]

B. 2 I believe that’s right

4 0

2 years ago

What is the value of x? enter your answer in the box

IRISSAK [1]

Answer:

I'm not 100% positive that my answer is remotley correct but I would say 25.

Step-by-step explanation:

and if that is you in your profile pic, you are very pretty.

I hope my answer helps!

5 0

3 years ago