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Dmitriy789 [7]
4 years ago
15

Please help!! 30 points!!

Mathematics
1 answer:
nasty-shy [4]4 years ago
4 0

Answer:

The expected sum is $220 and the standard deviation is $65

Step-by-step explanation:

In order to get the expected sum you add the two expected sums you are given

To get the standard deviation you add the two given standard deviations

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Please help if you can. If possible please type how you got the answer so I can remember it next time I get a question like this
Gre4nikov [31]

Answer:

(2,3)

Step-by-step explanation:

I did this by using the equation that was given. y=x+1.

This mean that the starting point would be the coordinate (0,1) and the x is the slope, which means that from coordinate (0,1) I will go up one and one to the right until I intersected with coordinate (2,3).

8 0
3 years ago
Read 2 more answers
Given the three topics listed below, discuss a visual, verbal, and algebraic way of connecting the concepts:
AURORKA [14]

Answer:

Lots of connections!

Step-by-step explanation:

I attached some images to make it more clear.

Visual and verbal discussion:

A good starting point is the circle. One can think of a circle as the set of points that are equidistant to a certain point. In that sense, one can define a circle using the distance. At the same time, given a point (x_{0},y_{0}) in the plane, we can connect the point with the origin of the coordinates system forming a rectangle triangle! (See 2nd image)

Algebraic discussion:

1. The distance Formula:

Given two points in the plane (x_{1},y_{1}) and (x_{2},y_{2}) we can find the distance between both points with the distance formula:

d = \sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2}

2. Equation of a circle centered at a point (x_{0},y_{0})

r = \sqrt{(x-x{_0}^2) + (y-y_{0})^2}

3. The Pythagorean Theorem:

Given a triangle of sides a;b and hypotenuse h we have that

h^2 = a^2 + b^2

Only by writing this equations we can already see the similarities between all three.

In fact, the most amazing thing about all three is that they are equivalents. That is, we can obtain every single one of them as an immediate result of another.

For instance, as I said before, one can think of a circle as the set of points equidistant to a certain origin or center point. So we could use the distance formula for each point on the circumference and we would obtain always the same value r hence obtaining the equation of a circle.

Also as we discussed, any point on the plane form a rectangle triangle with its coordinates and calculating the distance of said point to the origin of the coordinate system would give us no other thing than the hypotenuse of said triangle!

6 0
3 years ago
Use the rules for long division to divide 262 by 9.
Pani-rosa [81]
The answer for this problem is b

4 0
3 years ago
What is 256/6561 as a power
Georgia [21]

Answer:

(2/3)^8

Step-by-step explanation:

Note that 2^8 = 256, and that 3^8 = 6561.

Then 256/6561 = (2/3)^8

6 0
3 years ago
The car that Ms. Garcia is buying comes with a choice of 3 trim lines (standard, sport, or luxury), 2 types of transmission (aut
Marta_Voda [28]

Answer:

Number of different options for Ms. Garcia are

3 * 2 * 8 = 48

So 48 options

Step-by-step explanation:

There are m ways to make 1st selection and n ways to make 2nd selection and p ways to make 3rd selection so thats why I did (m * n * p)

3 0
3 years ago
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