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Roman55 [17]
3 years ago
7

Gieo một con xúc xắc đồng chất, gọi biến cố A="Số chấm lớn hơn 3" , B="Số chấm là số chẵn". Tính P(A/B)

Mathematics
1 answer:
zhannawk [14.2K]3 years ago
4 0

Answer:

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Step-by-step explanation:

<h2>Answer WORLD for you as well for you their own kind family of your own life and your business will will make you happy for you as well for your life and happiness in and around out of the world with your family and family friends and your family is is a great place </h2>
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The graph of the function f(x) = (x - 3)(x + 1)
djyliett [7]

Answer:

The graph is positive and decreasing for all real values of x where x < -1

Step-by-step explanation:

we have

f(x)=(x-3)(x+1)

The function is a vertical parabola open up

The roots (x-intercepts) are x=3 and x=-1

The vertex is the point (1,-4 ) is a minimum

using a graphing tool

see the attached figure

we know that

In the interval (-∞,-1) ---> the function is positive and decreasing

In the interval (-1,1) ---> the function is negative and decreasing

In the interval (1,3) ---> the function is negative and increasing

In the interval (3,∞) ---> the function is positive and increasing

therefore

The graph is positive and decreasing for all real values of x where x < -1

8 0
3 years ago
400 thousands + 600 thousands in standard form​
ruslelena [56]

Answer: 1 million

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Use distributive property to factor method 1. Use distributive property to expand method 2.
sasho [114]

Step-by-step explanation:

I guess method 1 means to deal with whole factors.

x + 5 = (x - 2)(x + 5)

for (x + 5) <> 0 we can divide both sides by this factor :

1 = x - 2

x = 3

for the second solution we deal with

x + 5 = 0

x = -5

so, for x = -5 and x = 3 both functions deliver the same output, and these are the intersection points.

method 2 : we multiply the expression out and solve it then

x + 5 = (x - 2)(x + 5)

x + 5 = x² + 5x - 2x - 10 = x² + 3x - 10

0 = x² + 2x - 15

the general solution to such a square equation is

x = (-b ± sqrt(b² - 4ac))/(2a)

in our case

a = 1

b = 2

c = -15

x = (-2 ± sqrt(2² - 4×1×-15))/(2×1) =

= (-2 ± sqrt(4 + 60))/2 = (-2 ± sqrt(64))/2 = (-2 ± 8)/2 =

= -1 ± 4

x1 = -1 + 4 = 3

x2 = -1 - 4 = -5

and you get the 2 solutions again. as expected, they are the same as with method 1, of course.

4 0
2 years ago
HELP ASAP PLEASE !!! WILL MARK BRAINLEST!!
Irina18 [472]

Answer: y=\frac{2}{5}x-8

Step-by-step explanation:

By definition, the equation of the line in  slope-intercept form of is:

y=mx+b

Where m is the slope and b is the y-intercept.

Then, given the slope 2/5 and the point, (-10, -5), you can calculate the value of b by susbtituting and solve for it:

-10=\frac{2}{5}(-5)+b\\ -10=-2+b\\b=-8

Substitute this value and the slope into the equation. THerefore, you obtain:

y=\frac{2}{5}x-8

4 0
3 years ago
In the right triangle shown,<br> m<br> V<br> = 60° and UV = 18.<br> 60°<br> How long is UW?
frutty [35]

Answer:

Step-by-step explanation:

There are two case I used, since we are not give diagram, so I assumed that U can be the right angle and also assume that W can be the right angle so, I used both assumption to solve, check attachment

1. Using Trigonometry

Assuming that U is the right angle

Tan  θ = opp / adj

Tan 60 = UW / UV

Tan 60 = UW / 18

UW = 18 × Tan60

UW = 18 × √3

UW = 18√3

UW = 31.18 unit

Also, assume that W is right angle

Using trigonometry

Sinθ = opp / hyp

Sin60 = UW / UV

Sin60 = UW / 18

UW = 18 × sin60

UW = 18 × √3/2

UW = 9√3

UW = 15.59 unit

8 0
3 years ago
Read 2 more answers
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