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love history [14]
3 years ago
6

Sharoda works at Diamond Jewellers. Her basic week of

Mathematics
1 answer:
Novay_Z [31]3 years ago
4 0
52-40 is 12 hours of overtime
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In a lumberjack competition, a contestant is blindfolded and then spun around 9 times. The contestant then immediately tries to
Kazeer [188]

Answer:

9.364 is the expected number of points.

we can approximate this to 10 points if we want a whole number

Step-by-step explanation:

We have these variables:

[0,5,10,15]

P(x= 0) = p(y>20)+p(y<-20) = 2p(y>20)

P(x=5) = p(-20<=y<=10)+p(10<=y<=20) = 2p(10<=y<=20)

P(x=10) = p(-10<=y<=-3)+p(3<=y<=10) = 2p(3<=y<=10)

P(x=15) = p(-3<=y<=3) = 2p(0<=y<=3)

Z = y/10

Therefore

P(x= 0) = 2(y>20)

= 2p(z>2) = 2(1-p<=2)

= 2(1-0.9772)

= 0.0456

P(x= 5)

= 2p(10<=y<=20)

= 2p(1<=z<=2)

= 2(0.9772-0.8413)

= 0.2718

P(x= 10)

= 2p(3<=y<=10)

= 2p(0.3<=z<=1)

= 2(0.8413-0.6179)

= 0.4468

P(x = 15)

= P(0.6179-0.3821)

= 0.2358

To get expected value of Y

0(0.0456)+5(0.2718)+10(0.4468)+15(0.2358)

= 1.359 + 4.468 + 3.537

= 9.364

E[Y] = 9.364

8 0
3 years ago
Pls help me im stuck​
Elza [17]

Answer:

1) 0.28

2) 0.35

Step-by-step explanation:

multiplication and subtraction

7 0
3 years ago
Read 2 more answers
The given graphs show functions which have been transformed from the quadratic parent, f(x) = x2. Determine which transformation
Artyom0805 [142]

Answer:

The tansformations of were applied to the quadratic parent function to result in each graph are g(x), h(x) and d(x) with translation

Further explanation

Transformations definition is it involved by taking a preimage and transforming it in some way to produce an image.

Mathematical transformations have four main types: translation, rotation, reflection and dilation

Rotation is done by rotating an object about a fixed point without changing its size or shape

Translation is done by moving an object in space without changing its size, shape or orientation

Dilation is done by expanding or contracting an object without changing its shape or orientation

Reflection is done by flipping an object across a line without changing its size or shape

The given graphs show functions which have been transformed from the quadratic parent, f(x) = x^2f(x)=x

2

Which transformations were applied to the quadratic parent function to result in each graph?

Quadratic parent: f(x)=x^2f(x)=x

2

The graph is a parabola with V=(0,0)V=(0,0) at the origin

If x=1x=1 then f(1)=1^2 = 1f(1)=1

2

=1

Vertical shift means shifting in y axis. Whereas horizontal shift means shifting in x axis. Shift down means go to lower value of axis, whereas shift left goes to higher value of axis

For g(x)g(x) : vertical shift down 3 and horizontal shift left 3

For h(x)h(x) : reflection across the x-axis and vertical strecht of 3

4 0
3 years ago
I need to show my work plz it needs to be long division
lisabon 2012 [21]
Try photo math it helps
5 0
3 years ago
A triangle has a base of 15 feet and height of 9.5. what is the area of the triangle
enot [183]

Answer:

71.25ft

Step-by-step explanation:

A=hbb

2=9.5·15

2=71.25ft²

4 0
3 years ago
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