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2 years ago

Whats 2+2, im dum/b its 5 right

Mathematics

2 answers:

ratelena [41]2 years ago

7 0

Answer:

yes its 5

Step-by-step explanation:

if you followed the steps correctly your answer will show ul

Leya [2.2K]2 years ago

7 0

Answer: BROOOO 2+2 is 4

Step-by-step explanation: let's say you have 2 bananas and you get 2 more that makes 4

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4. The stock market goes up more often that it goes down. Assume the probability that the stock market goes up in a randomly sel

tekilochka [14]

Answer:

a: 0.0022

b: 0.00002

c: 0.0002

d: 924

e: 0.0025

f: 0.6652

g: Expected value 7.8 months, standard deviation 1.77 months

Step-by-step explanation:

This is a binomial situation. Either the market goes up, or it doesn't. (It could stay the same, but it doesn't offer that as an option, so we don't include it).

When calculating probability of a binomial situation, use the formula

(nCr)(p^r)(q^(n-r)) where p is the probability of success, q is the probabilty of failure, n is the the number of times the situation occurs, and r is the desired number of successful outcomes. The function nCr tells us how many ways you can choose r items from n total items. In this case, we are choosing some number of months, r, from 12 months, n

For our situation we have: n = 12, r = 12, p = 0.6, q = 0.4,

For a: (12C12)(0.6^12)(0.4^0) = (1)(0.0022)(1) = 0.0022

We want all 12 months of success and no months of failure

For b: (12C0)(0.6^0)(0.4^12) = (1)(1)(0.00002) = 0.00002

We want all months of failure, and no months of success

For c: (0.6^6)(0.4^6) = 0.0002

We don't need the nCr function because it tells us that it we want 6 months of success followed by 6 months of failure. There's only 1 way to do that, so there's nothing to count

For d: 12C6 = 924

There are 924 different ways to the market can go up 6 times out of 12 months

For e: (12C2)(0.6^2)(0.4^10) = (66)(0.36)(0.0001) = 0.0025

For f: Add the following probabilities together...

(12C7)(0.6^7)(q^5) + (12C8)(0.6^8)(q^4) + (12C9)(0.6^9)(q^3)

+ (12C10)(0.6^10)(q^2) + (12C11)(0.6^11)(q^1) + (12C12)(0.6^12)(q^0)

= 0.6652

They are mutually exclusive, the probability for the union is zero because they can't happen at the same time

For g: Find expected value with the formula E = np , here n = 12, p = 0.6, so

E = 12(0.6) = 7.8 months

Find the standard deviation with the formula s = √(npq), or s = √(Eq), here q = 0.4, so s = √(7.8(0.4)) = 1.77 months

7 0

2 years ago

What is a regular Polygon? Name all the types of polygon.(HELP ASAP)

Damm [24]

Answer:

A regular polygon is a polygon with sides of equal length. Some examples include, a equilateral triangle, square, regular pentagon, regular hexagon, regular heptagon, regular octagon, regular nonagon, regular decagon...

7 0

2 years ago

I'm doing Pre-algebra and I don't know how would I figure out the 13th term of the pattern; 100, 91, 82, 73.... without writing

Over [174]

The way we would answer the question would be to express it as

100-9(n-1) with n being the nth term of the pattern.

Why is this? We know we subtract 9 each time and START from 100.
Remember though that 100 is the first term in the sequence. So, we would have (n-1)*9 to subtract 0 from our 1st term and 9 from our second term.

Also, we have 9*(n-1) because we are just subtracting multiples of 9. It is always going to subtract by 9.

If you needed the answer here it is...

The answer to the problem would be
100-9(13-1)
= 100-9(12)
= 100-108
= -8

5 0

2 years ago

Graph the line by plotting y=x+8

Zarrin [17]

The equation y = x + 8 uses the slope intercept form

Remember that the slope intercept formula is:

y = mx + b

m is the slope

b is the y-intercept

In this case

y = 1x + 8

m = 1

y = x + 8

b = 8 OR y-intercept of this line is (0, 8)

You can plot the point (0, 8) on a graph. Then to find the next point you will rise up 1 and over right 1 (this is the slope). You can find another point after that by going down one and left one from the point (0, 8)

The graph should look like the one in the image below

Hope this helped! Let me know if you have any further questions

~Just a girl in love with Shawn Mendes

6 0

2 years ago

the length of a rectangle is 2 in more than it's w i d t h the area of a rectangle is equal to 1 inch less than three times a pe

Marizza181 [45]

If we let x and y represent length and width, respectively, then we can write equations according to the problem statement.
.. x = y +2
.. xy = 3(2(x +y)) -1

This can be solved a variety of ways. I find a graphing calculator provides an easy solution: (x, y) = (13, 11).

The length of the rectangle is 13 inches.
The width of the rectangle is 11 inches.

______
Just so you're aware, the problem statement is nonsensical. You cannot compare perimeter (inches) to area (square inches). You can compare their numerical values, but the units are different, so there is no direct comparison.

6 0

2 years ago