All categories

2 years ago

Desperately need help and an explanation so I can do it on my own later.

Mathematics

1 answer:

Mashutka [201]2 years ago

4 0

Step-by-step explanation:

since the sumation of f(x) of a probability is 1

thw probability to win is o.5 and to lose is o.5 so expected value is xf(x

your expected value will b 0.5 multiply by 5 thats is 2.5 thats your expected gain

You might be interested in

Which number is a solution of the inequality? 6>z(10-z)

I am Lyosha [343]

A.0 I think ................

6 0

4 years ago

Need help with translation

sergij07 [2.7K]

Answer:

The translation rule will be: (x, y) → (x+3, y+9)

Step-by-step explanation:

As X'Y' is a translation of XY.

As the location of the vertix X is (-4, -9) and the coordinates of vertex Y is (-5, -5).

As X'Y' be the vertices of the translated figure.

So, if we translate the segment XY +3 units in the x-direction and +9 units in the y-direction, i.e.

(x, y) → (x+3, y+9) = (-4+3, -9+9) = (-1, 0) = X'

and

(x, y) → (x+3, y+9) = (-5+3, -5+9) = (-2, 4) = Y'

so, the image X'Y' will have the X' vertice at the location (-1, 0) and Y' vertice at the location (-2, 4).

Therefore, the translation rule will be: (x, y) → (x+3, y+9)

6 0

3 years ago

11) V = tr2h solve for r2

Trava [24]

Answer:

$r^{2}=\frac{V}{\pi h}$

Step-by-step explanation:

To solve an equation for one of its variables do that:

Underline the variable
Separate it one side and the other terms on the other side
Make its coefficient equal to 1

Let us use these steps to solve our question

∵ V = πr²h

→ Underline r²

∴ V = π<u>r²</u>h

→ Take π and h to the other side by dividing both sides by πh

∵ $\frac{V}{\pi h}=\frac{\pi r^{2}h}{\pi h}$

∴ $\frac{V}{\pi h}=r^{2}$

→ The coefficient of r² is 1, so switch the two sides

∴ $r^{2}=\frac{V}{\pi h}$

8 0

4 years ago

Does any three points make a line

ziro4ka [17]

No. they have to be in a linear patern. the line must be straight.

5 0

3 years ago

Mrs. James selected 4 3/4

Mama L [17]

Answer:

4 3/4*2.50

19/4*2.50

=B] $11.88

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers