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wel
3 years ago
9

Using all the letters in the alphabet how many two letter codes can we form if we are allowed to use the same letter twice?

Mathematics
1 answer:
babymother [125]3 years ago
4 0
There are 26 possible choices for the 1st letter in the code.
There are also 26 choices for the 2nd letter in the code.

---> 26*26 = 676 total possible two-letter codes
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Find the value of y in the following expression if x = 5 and type the result in the empty box.
ValentinkaMS [17]

Answer:

3.4 is the answer i think

Step-by-step explanation:

3 0
3 years ago
Rework problem 7 from section 3.4 of your text, involving the selection of a colored ball from one of three bowls. Assume that y
allochka39001 [22]

Answer:

  • Question (1): 1/2 = 0.5

  • Question (2): 1/6 ≈ 0. 17

Explanation:

<u>1. Arrange the information of the balls contained in the bowls in a table:</u>

                       Bowl X      Bowl Y       Bowl Z     Total

Red balls              2               2                1               5

White balls           2                1                3              6

Blue balls             3                1                2              6

                           ==============================

Totals                     7                4              6             17  

<u>2. To answer each question use the basic definition of probabilities</u>

  • Probability = # of favorable events / # of possible events

<u>3. Question (1) If the ball is blue, what is the probability that it was drawn from bowl X? </u>

<u />

  • Number of total blue balls: 6
  • Number of blue balls in the bowl X: 3
  • Probability that a ball that is blue was drawn from the bowl X: P (b/X)

       P (b/X) = number of blue balls in the bowl X / total number of blue balls = 3 / 6 = 1/2 = 0.5

       

<u>4. Question (2) If the ball is either blue or white, what is the probability that it was drawn from bowl Y?</u>

  • Number of total blue and white balls: 6 + 6 = 12
  • Number of blue balls and white balls in the bowl Y: 1 + 1 = 2
  • Probability that a ball that is either blue or white was drawn from the bowl Y: P (b or w / Y)

       P (b or w /Y) = number of blue balls and white balls in the bowl Y / total number of blue balls and white balls = 2 / 12 = 1/6 ≈ 0.17

4 0
4 years ago
Graph the solution set to the system <br> Y&lt;15-0.41
Vlad [161]

Answer:

The graph in the attached figure

Step-by-step explanation:

<u><em>The correct question is</em></u>

Graph the solution set to the system

Y<(1/5)x-0.41

we have

y

The solution is the shaded area below the dashed line  y=\frac{1}{5}x-0.41

The slope of the dashed line is positive m=\frac{1}{5}

The y-intercept of the dashed line is (0,-0.41)

The x-intercept of the dashed line is (2.05,0)

To find out the solution set, draw the intercepts and connect them to plot the dashed line, and shade the area below the dashed line

The graph in the attached figure

8 0
3 years ago
Find the domain of the given function. f(x) = square root of quantity x plus eight divided by quantity x plus four times quantit
BaLLatris [955]

Your f(x)=sqrt[x+8]/(x+4)(x-6) is MUCH clearer, but not 100% clear.  I will assume that your denominator here is the product of (x+4) and (x-6):

           √x+8)

f(x) = ------------------    

          (x+4)(x-6)

We cannot divide by zero.  Thus, x cannot be -4 and cannot be 6.

Thus, the domain is:

(-infinity, -4) or (-4, 6) or (6, infinity).





7 0
4 years ago
What is the value of p ?
VLD [36.1K]

Answer:

p = 35

Step-by-step explanation:

180 - 125 = 55

180 - 90 = 90

55 + 90 = 145

180 - 145 = 35

p = 35

6 0
3 years ago
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