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4 years ago

There are 12 e's among the 100 tiles in scrabble. what is the probability of selecting all 4 e's when selecting 4 tiles?

Mathematics

1 answer:

vekshin14 years ago

5 0

Using math and my logic
(12/100)(11/99)(10/98)(9/97)=3/23765 which is about 0.0126% which is very small

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How can you determine the slope and the y-intercept of a line from a graph

ch4aika [34]

Answer:

slope-intercept form is y=mx+b where m is always the slope and b is always the y-intercept.

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3 years ago

Keiko purchased a prepaid card for 25 long distance calls cost 12 cents a minute using this card krill used her card only once t

Yanka [14]

The answer is 22.0p is the answer

3 0

4 years ago

The coordinates of AB are A(-5, -1) and B(-2, -6). If AC : CB = 3 : 7, what are the coordinates of point C?

bixtya [17]

$\text{Let the coordinates of AB are }A(-5,-1), \text{ and }B(-2, -6)\\
\\
\text{let the coordinate of th point C be (x, y), such that}\\
\\
AC:CB=3:7\\
\\
\text{By the section formula, we know that if P(x,y) lies on a line segment AB}\\
\text{where, }A(x_1,y_1), \ B(x_2,y_2)\text{ and satisfy the ratio, }AP:PB=m:n, \text{ then}$

$P=\left ( \frac{mx_2+nx_1}{m+n}, \ \frac{my_2+ny_1}{m+n} \right ).\\
\\
\text{So using this formula, we get for the given problem}\\
\\
C=\left ( \frac{3(-2)+7(-5)}{3+7}, \ \frac{3(-6)+7(-1)}{3+7} \right )\\
\\
\Rightarrow C=\left ( \frac{-6-35}{10}, \ \frac{-18-7}{10} \right )\\
\\
\Rightarrow C=\left ( \frac{-41}{10}, \ \frac{-25}{10} \right )\\
\\
\Rightarrow C=\left ( -4.1, \ -2.5 \right )$

Coordinates of the point C is: (-4.1, -2.5)

6 0

3 years ago

Answer this please. You will get 15 points.

Naya [18.7K]

The given equation, a = (2b + 10) / 6, solved for b is b = 3a - 5

<h3>Solving an equation for a variable</h3>

From the question, we are to solve the given equation for b.

From the given information,

The given question is

a = (2b + 10) / 6

Now, to solve the given equation for b, we will make b the subject of the relation.

Solving the equation for b

a = (2b + 10) / 6

Multiply both sides of the equation by 6

6 × a = 6 × (2b + 10) / 6

6a = 2b + 10

Subtract 10 from both sides of the equation

6a - 10 = 2b + 10 - 10

6a - 10 = 2b

Divide through by 2

6a/2 - 10/2 = 2b/2

3a - 5 = b

Therefore,

b = 3a - 5

Hence, the equation solved for b is b = 3a - 5

Learn more on Solving an equation for a variable here: brainly.com/question/19041791

#SPJ1

5 0

1 year ago

A board is 22.5 Inches long. How long is the board in centimeters? Use the following conversion: 1 Inch is 2.54 centimeters.

omeli [17]

Answer:

57.15

Step-by-step explanation:

22.5*2.54 is 57.15

6 0

3 years ago