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Ber [7]
3 years ago
13

For a standard deck of playing cards, find the probability that a queen randomly selected from the deck is a diamond.

Mathematics
1 answer:
dsp733 years ago
6 0
The answer should be 1/26!!
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Help match them with the answer I would really appreciate it
Ratling [72]

Answer:

Graph 1 goes with the equation y = \frac{1}{2}x  - 7

Graph 2 goes to the equation y = -\frac{3}{4}x + 9

Graph 3 goes to the equation y = x + 10

7 0
3 years ago
Show that each statement is true: <br> Cos^4X-sin^4X=2cos^2X-1
Ivan
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4 0
3 years ago
Bain<br> Which shows how to solve the equation for x in one step?<br> -4/5x =80
Alexxandr [17]

Answer:

x = -100

You'd multiply both sides by 5/(-4) to solve in one step.

8 0
3 years ago
Use the following explicit function to identify f(1) &amp; r, and list the first five terms of the sequence.
rjkz [21]

Given:

The explicit function is:

f(n)=1000\left(\dfrac{1}{4}\right)^{n-1}

To find:

f(1)=?,r=? and first 5 terms.

Solution:

The explicit formula a geometric sequence is:

f(n)=ar^{n-1}            ...(i)

Where, a is the first term and r is the common ratio.

We have,

f(n)=1000\left(\dfrac{1}{4}\right)^{n-1}         ...(ii)

On comparing (i) and (ii), we get

a=1000

f(1)=1000

And,

r=\dfrac{1}{4}

For n=1,

f(1)=1000\left(\dfrac{1}{4}\right)^{1-1}

f(1)=1000\left(\dfrac{1}{4}\right)^{0}

f(1)=1000(1)

f(1)=1000

For n=2,

f(2)=1000\left(\dfrac{1}{4}\right)^{2-1}

f(2)=1000\left(\dfrac{1}{4}\right)^{1}

f(2)=1000\times \dfrac{1}{4}

f(2)=250

Similarly, substituting n=3,4,5, we get

f(3)=62.5

f(4)=15.625

f(5)=3.90625

Therefore, f(1)=1000,r=\dfrac{1}{4} and the first five terms are 1000,250,62.5,15.625,3.90625.

5 0
3 years ago
Read 2 more answers
In this unit, you learned about different types of numbers that make up real numbers. Note the different types of numbers, and p
mamaluj [8]
Whole numbers, rational numbers and irrational numbers are types of real numbers.
Whole number examples; 0, 1
Rational number examples; 1/2, 0.25
Irrational number examples; √25, π PI

WHOLE numbers are easiest for me to identify.
3 0
3 years ago
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