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2 years ago

Statistics honors - Independent events means disjoint events. True or False?

1 answer:

8 0

Answer:

False

Explanation:

Because to events are disjoint if they have no outcomes in common. In other words the events are disjoined if knowing that one of the events occurs we know the other event not occur.

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The sum of z and 7 algebraic expression

snow_tiger [21]

Step-by-step explanation:

The algebraic expression for The sum of z and 7 algebraic expression is given as:

z + 7

6 0

3 years ago

Suppose that y varies directly with x and y=12 when x=-2. what is when x=-6?

dlinn [17]

Y=4

How?
When they say directly you should multiply the x and y together. You would get -24, now using that number divide -24 by the new x(-6) you would get 4.

4 0

3 years ago

Read 2 more answers

What is the relationship between angle BAC and angle BOC?

Basile [38]

In this problem, an angle like angle BAC where the vertices like on the circle itself is called the inscribed angle.

While angle BOC, where O is the center of the circle, is called the central angle.

Using Proposition III.20 from Euclid's Elements, this is called the Inscribed Angle Theorem wherein:

∠BOC = 2∠BAC

or ∠BOC / 2 = ∠<span>BAC</span>

3 0

3 years ago

What is the answer and how to you solve it as easy as possible

Gnom [1K]

Answer:

A = 504inch

Step-by-step explanation:

Formula = A = 2(wl + hl + hw)

or A = 2wl + 2lh + 2hw, where w is the width, the l is the length, and the h is the height.

2wl = 6inch × 12inch = 72inch × 2 = 144inch

2lh = 12inch × 10inch = 120inch × 2 = 240inch

2hw = 10inch × 6inch = 60inch × 2 = 120inch

Then add all

144inch + 240inch + 120inch = 504inch

A = 504inch

7 0

3 years ago

The sum of liz's and melinda's ages is 28. if liz was 1/3 melinda's age 6 years ago, how old will liz be next year?

Mrrafil [7]

The first thing we must do for this case is to define variables:
We have then:
x: liz's age
y: melinda's age
We now write the system of equations:
$x + y = 28

x-6 = (1/3) (y-6)$
By solving the system graphically we have that the age of each one is currently:
$x = 10

 y = 18$
Next year, the age of liz is:
$x + 1 = 10 + 1 = 11
$
Answer:
Next year, Liz's age is 11 years.
Note: see attached image for the graphic solution.

3 0

3 years ago