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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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A line is defined by the equation y = 2/3 x - 6 The line passes through a point whose y-coordinate is 0. What is the x-coordinat
Iteru [2.4K]

Answer:

x = 9

Step-by-step explanation:

Use the equation of the line, and let y = 0. Then solve for x.

y = 2/3 x - 6

Let y = 0:

0 = 2/3 x - 6

Add 6 to both sides.

6 = 2/3 x

Multiply both sides by 3/2.

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8 0
4 years ago
Find the product of the given complex number and its conjugate.<br> 1/5+4i
nasty-shy [4]

Answer:

-15.96

Step-by-step explanation:

A conjugate is a binomial with the sign inside changed. So the conjugate of (1/5 + 4i) is (1/5 - 4i)

Set the original and the conjugate next to each other and F.O.I.L. Multiply the first numbers of each binomial, the 1/5 and the 1/5 to get 1/25. This is the "F."

Multiply the outer members, the 1/5 and the 4i to get - 60i. This is the "O."

Multiply the inner  numbers  ( the + 4i and the 1/5) to get + 60i. This is the "I."

Multiply the positive 4i and the negative 4i to get 16i squared

The positive 60i and the negative 60i cancel each other out.

The i squared changes into - 1. This makes the 16 negative.

Add 1/25 to - 16 to get - 15.96

4 0
3 years ago
Cobalt-56 has a decay constant of 8.77 × 10-3 (which is equivalent to a half life of 79 days). How many days will it take for a
sweet-ann [11.9K]
As I read this one, is just a decay exponential equation... so

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so, for the sake of comparing it with a percentage, 1 will do

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7 0
3 years ago
15-2x=3x<br> x=<br> please help me
alex41 [277]
15-2x=3x
Add 2x to both sides
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Hope it helps (:
7 0
3 years ago
Read 2 more answers
For the linear equation y = mx + b, what does b represent
notka56 [123]

Answer:

Initial Value / Starting Point

Step-by-step explanation:

Slope-intercept form of a linear equation is y=mx+b where m is the slope and b is the y-intercept, or the initial value.

7 0
3 years ago
Read 2 more answers
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