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Klio2033 [76]
2 years ago
6

James has organised a game to raise money for charity at a local He rolls a fair six-sided dice and flips a fair coin. If the co

in lands on heads, the number on the dice is squared. If the coin lands on tails, the number on the dice is cubed. Each person pays 50p to play. If they score above 30, they win £1 The game is played 450 times. How much money does James raise for charity?
Mathematics
1 answer:
sladkih [1.3K]2 years ago
6 0
Here is your ans - $9000
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If z=3−5i, find |z|.
geniusboy [140]

Answer:

Step-by-step explanation:

The absolute value of z is the distance between the point graphed from the complex number and the origin on a complex plane.  In a complex plane, the x axis is replaced by R, real numbers, and the y axis is replaced by i, the complex part of the complex number.  Our real number is positive 3 and the complex number is -5, so we go to the right 3 and then down 5 and make a point.  Connect that point to the origin and then connect the point to the x axis at 3 to construct a right triangle that has a base of 3 and a length of -5.  To find the distance of the point to the origin is to find the length of the hypotenuse of that right triangle using Pythagorean's Theorem.  Therefore:

|z|=\sqrt{(3)^2+(-5)^2} and

|z|=\sqrt{9+25} and

|z|=\sqrt{34}

5 0
3 years ago
Journalists try to use shorter or simpler words in their news stories whenever possible. The box below shows the number of lette
kap26 [50]

The mean, median number and the the outlier of the number of letters in the box is 5, 4.5 and no outlier respectively.

The complete question:

A box contains the numbers 9, 2, 2, 11, 1, 8, 8, 2, 6, 1, 7, 3.

<h3>How to find mean, median and outlier</h3>

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= (9 + 2 + 2 + 11 + 1 + 8 + 8 + 2 + 6 + 1 + 7 + 3) ÷ 12

= 60 ÷ 12

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In ascending order; 1,1,2,2,2,3,6,7,8,8,9,11

  • There are two middle number; 6 and 3

Median = (6 + 3) / 2

= 9/2

= 4.5

  • There is no outlier

Learn more about mean and median:

brainly.com/question/14532771

6 0
2 years ago
A right triangle has sides 5.0 m, 12 m, and 13 m. the smallest angle of this triangle is nearest:
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6 0
3 years ago
Help if you know how to do this- brainliestt
Gwar [14]

Answer:

95.5°F

Step-by-step explanation:

Given the regression equation :

y = 1.8x - 76.9 ; the relationship between temperature (°F) and number of ice cream sold

y = number of ice cream sold

x = temperature (°F)

The temperature when 95 iccream cones are sold will be ;

Here, y = 95

Using the model :

95 = 1.8x - 76.9

95 + 76.9 = 1.8x

171.9 = 1.8x

Divide both sides by 1.8

171.9 / 1.8 = x

95.5°F = x

Hence, temperature when 95 cones of ice-cream are sold is 95.5°F

8 0
2 years ago
Given f(x)=-4x+7 find f(2) how do i slove this
yan [13]

Answer:

-1

Step-by-step explanation:

given f(x)=-4x+7 find f(2)

f(2) means question : if x=2, f(2)=?

f(2)= -4x2+7=-1

8 0
3 years ago
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