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Arturiano [62]
3 years ago
13

Find the experimental probability of getting the letter e when a letter is drawn at random from this text:

Mathematics
1 answer:
MrMuchimi3 years ago
5 0

Answer:

0.17647 or 17.647%

Step-by-step explanation:

You have to count the total number of letters in the text:

The text has 102 letters. Do not count punctuation signs and spaces.

Now count the total number the letter “e” appears.

The letter “e” appears 18 times.

So the experimental probability of getting the letter e when a letter is drawn at random from the text:

<em>"In English l, the letter e appears most frequently among alphabetical characters, in these lines, it appears eighteen times."</em>

is

18/102 = 0.17647 or 17.647%

'

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Can someone help me find x of this triangle
uysha [10]

Answer:

x = 9

Step-by-step explanation:

Sum of a triangle is 180°.

6x + 1 + 6x - 14 + 9x + 4 = 180°

Arrange the like terms together and simply this equation.

6x + 6x + 9x + 1 + 4 - 14 = 180°

21x - 9 = 180°

Shifting '-9' to the other side of the equation gives you '+9'

21x = 180° + 9

21x = 189

Shifting 21 to the other side of the equation (to get x) makes it  ÷21 (multiply)

x = 189 ÷ 21

x = 9

3 0
3 years ago
Each second for 4 seconds, an elevator descends 10 feet. Find the total change in elevation.
NISA [10]
(4 sec) * (-10 ft/sec) = -40 ft.
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3 years ago
In 1989 Dutch ice skater dries van wijhe skated 200km at an average speed of 35.27 km/h. How long was he skating?
Lelu [443]
200/35.27=<span>5.6022409 hours total 
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7 0
3 years ago
Inverse of f(x)=3x-4
aniked [119]

Answer:

\large\boxed{f^{-1}(x)=\dfrac{x+4}{3}=\dfrac{1}{3}x+\dfrac{4}{3}}

Step-by-step explanation:

f(x)=3x-4\to y=3x-4\\\\\text{exchange x to y and vice versa}\\\\x=3y-4\\\\\text{solve for y}\\\\3y-4=x\qquad\text{add 4 to both sides}\\\\3y=x+4\qquad\text{divide both sides by 3}\\\\y=\dfrac{x+4}{3}

8 0
3 years ago
(5ab-9a-4) - (-4ab + 5)
qaws [65]

Answer:

9ab - 9a +1

Step-by-step explanation:

first, we can distribute the negative sign to the second set of parentheses.

-(-4ab + 5) becomes + 4ab - 5

now let's put the values in (5ab-9a-4) side by side with the corresponding values in + 4ab - 5

5ab + 4ab - 9a - 4 - 5

= 9ab - 9a - 9, because 5ab + 4ab = 9ab, -9a is alone, and -4 - 5 = -9.

8 0
3 years ago
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