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scoundrel [369]
3 years ago
7

Please Help ASAP

Mathematics
1 answer:
horrorfan [7]3 years ago
8 0

Answer:

3.1

Step-by-step explanation:

In order to solve for this expected value, you need to do:

(0*0.3)+(1*0.15)+(2*.27)+(3*20)+(4*.13)+(5*.10)+(6*.07)+(7*0.3)+(8*0.2)

Meaning that it is:

0+.15+.54+.6+.52+.5+.42+.21+.16

Which equals to: 3.1

Also: <em>Feel free to correct my answer by any means, I feel like I got some parts wrong. </em>

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so the answer is B

ok done. Thank to me :>

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Is 1 11/17 a rational number
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Question 4 of 21
Georgia [21]

Answer:

C

Step-by-step explanation:

since g(x) has the exact same form of f(x), it is then clear that g(x) is just a "lifted" version of f(x).

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2 years ago
Solve. Between [0, 2pi]<br> 2cos^2x+7cosx+3=0
vova2212 [387]

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Answer:

  x = {2π/3, 4π/3}

Step-by-step explanation:

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  cos(x) +3 = 0

  cos(x) = -3 . . . . . . no real solution

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6 0
3 years ago
Geom unit 9 lesson 2 semester b exam
sergiy2304 [10]

Semester B, we'll

<span>start with right triangles and learn about the trigonometric ratios that come with them. (Don't worry. They don't bite.)box some rectangles, fend off polygons, and make our way around circles.learn about area and volume, which seem like simple concepts, but take up more space than you might think (and not just in your noggin).finish up with some statistics and probability. There's more to it than tossing cubes or flipping cylinders.</span>

P.S. Geometry is a two-semester course. You're looking at Semester B, but you can check out Semester A here.

Unit Breakdown<span>8 Right Triangles and Trigonometry</span>

This unit is all about right triangles, and we hate to break it to you, but it's pretty important. Yeah, the Pythagorean Theorem is essential, and knowing the properties of special right triangles will certainly make your life easier, but none of that compares to what happens after: this unit is where you'll first tackle trigonometry. (Gasp!)

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We'll start by defining the circle and talking about a few of its properties (did you know it owns a mansion in Connecticut and beach house in Boca?). After a little bit about central angles, arc measures, and arc lengths, we'll learn about the equations of circles on the coordinate plane and show circles some love by performing a few constructions with them.

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As you might have guessed, this unit is all about area. Be ready for a return of triangles, squares, quadrilaterals, circles, and basically every shape we've ever talked about. Once we're finished, don't be surprised if you find yourself secretly calculating areas of soccer fields or road signs in your head. It happens to the best of us.

<span>12 Three-Dimensional Geometry</span>

How much area covers a simple space figure's surface? We've got you covered. How much stuff fits inside a three dimensional solid? We can figure that out, too. In this unit, we'll examine space figures inside and out. We'll stick to simpler solids, such as cubes, prisms, cylinders, and cones. Finding the volume of a tuba is not something we'd like to try right away. Trust us.

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We're back in the land of probability and statistics, here to pick up some more pearls of wisdom. In this unit, we'll explore frequency tables, "and" vs. "or" probability, and dependent events, as well as factorials, combinations, and permutations. We're hoping that we'll find enough of pearls of wisdom to make a pearl of wisdom necklace, but we'll settle for learning a thing or two instead.

Recommended prerequisites: <span>Geometry—Semester A</span>
6 0
4 years ago
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