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Ede4ka [16]
3 years ago
6

What is the fourth rule of probability

Mathematics
1 answer:
labwork [276]3 years ago
5 0

Answer: Addition Rule

Step-by-step explanation:This is the probability that either one or both events occur. a. If two events, say A and B, are mutually exclusive - that is A and B have no outcomes

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Which of these describes the system of linear equations below?
Nataly [62]

Given:

The system of equations is

3x-2y=7

6x-4y=14

To find:

The correct statement for the given system of equations.

Solution:

On comparing the given equations and general form of linear equation, i.e., ax+by+c=0, we get

a_1=3,b_1=-2,c_1=-7

a_2=6,b_2=-4,c_2=-14

Here,

\dfrac{a_1}{a_2}=\dfrac{3}{6}=\dfrac{1}{2}

\dfrac{b_1}{b_2}=\dfrac{-2}{-4}=\dfrac{1}{2}

\dfrac{c_1}{c_2}=\dfrac{-7}{-14}=\dfrac{1}{2}

Since, \dfrac{a_1}{a_2}=\dfrac{b_1}{b_2}=\dfrac{c_1}{c_2}, therefore, the two equations are equivalent and the system has infinitely many solutions.

Hence, the correct option is b.

4 0
3 years ago
Please HELPPP !!!!!!!
Kaylis [27]
D, (a + b = c) hope this helps
3 0
4 years ago
Every month, Ms. Thomas pays her car loan through automatic payments (withdrawals) from her savings account. She pays the same a
sp2606 [1]

Answer: -$1465.5

Ms. Thomas pays the 'same' amount as her car loan each month through car payments.

Total amount payed at the end of the year for car loan = -$2931

Change in Ms. Thomas' savings account each month (with respect to car loan) =

-2931/12 = -$244.25

So, to to calculate the total change to Ms. Thomas's savings account balance after paying for car loan for six months, we will simply multiply one month's amount with 6:

-$244.25 x 6 =  -$1465.5

7 0
4 years ago
What is the area of a rectangle that is \dfrac1{2} 2 1 ​ start fraction, 1, divided by, 2, end fraction of a meter long and \dfr
sashaice [31]

Answer:

Area = \frac{3}{16} m^2

Step-by-step explanation:

Given

Shape: Rectangle

Length = \frac{1}{2}\ m

Width = \frac{3}{8}\ m

Required

Determine the area of the rectangle;

Area is calculated as thus;

Area = Length * Width

Substitute values for Length and Width

Area = \frac{1}{2} * \frac{3}{8}

Area = \frac{1 * 3}{2 * 8}

Area = \frac{3}{16}

<em>Hence, the area of the rectangle is </em>\frac{3}{16}m^2<em />

5 0
3 years ago
Hey circular plot of land has a diameter of 14 yards what is the area of the land use 3.14 for pie
vagabundo [1.1K]

Answer:

153.86 yards²

Step-by-step explanation:

A(Circle) = πr² where r = radius.

r = d/2 where r = radius and d = diameter.

r = 14/2 = 7 yards.

(3.14)(7)² = (3.14)(49) = 153.86 yards²

3 0
3 years ago
Read 2 more answers
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