1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
SSSSS [86.1K]
3 years ago
14

P(A) = 0.8, P(B) = 0.55 and P(A and B) = 0.35. What is P(A or B)?

Mathematics
2 answers:
Likurg_2 [28]3 years ago
7 0
<h3>Answer:  1</h3>

Work Shown:

P(A or B) = P(A) + P(B) - P(A and B)

P(A or B) = 0.8 + 0.55 - 0.35

P(A or B) = 1.35 - 0.35

P(A or B) = 1

A probability of 1 means there is 100% certainty the event happens. This must mean that there are only possible outcomes are: either event A happens, or B happens, or possibly both A and B happen simultaneously.

Artemon [7]3 years ago
6 0
Jehdhdhdhdhhfhdhfhdhvshdhegegdgdhhr
You might be interested in
The equation of a linear function in point-slope form is y – y1 = m(x – x1). Harold correctly wrote the equation y = 3(x – 7) us
Doss [256]

Answer:

The answer to your question is (7, 0)

Step-by-step explanation:

Data

A (7, 3)

B (0, 7)

C (7, 0)

D (3, 7)

Process

1.- Substitute each point in the equation to find the answer

Point A           y - 3 = m(x - 7)

Point B           y - 7 = m(x - 0)

Point C           y - 0 = m(x - 7)

Point D           y - 7 = m(x - 3)

2.- Conclusion

The only possibility is that m = 3 and the answer will be the third point (7,0)

5 0
3 years ago
Read 2 more answers
The circumference of a hula hoop is 86pi cm.<br> What is the radius of the hula hoop?
charle [14.2K]

Answer: 86pi

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Please help me with this
postnew [5]
Area of a regular polygon = 1/2 x apothem x perimeter

We know that each side is 10, because if you draw a segment from the center to a vertex it creates a 30-60-90 triangle (those are the angles). This type of triangle has a ratio for its sides where the longer side is radical three times as long as the shorter leg. This shorter leg happens to be half of a side of the polygon. Knowing that the polygon has 6 sides, we can multiply 10 by 6 to get the perimeter. 

Area of polygon = 1/2 x apothem x perimeter = 1/2 x 5\sqrt{3} x 60
=30 x  5\sqrt{3}
= 30 x 5 x <span>1.73205080757
= 150 x </span><span>1.73205080757
= </span><span>259.807621135

To the nearest tenth of a cm, the area of the polygon is 260 cm squared</span>
3 0
3 years ago
Divide x^4+3x^3-2x^2+4 by x-2<br><br>which answer shows the correct synthetic division and quotient
arsen [322]

Answer:

option-A

\frac{x^4+3x^3-2x^2+4}{x-2}=x^3+5x^2+8x+16+\frac{36}{x-2}

Step-by-step explanation:

we are given

divisor is

=x^4+3x^3-2x^2+4

Dividend is

=x-2

so, we can use synthetic division

so, we can write our expression as

\frac{x^4+3x^3-2x^2+4}{x-2}=x^3+5x^2+8x+16+\frac{36}{x-2}

so,

option-A

5 0
3 years ago
Please help me with this problem. Tell me the steps to solving
Hatshy [7]
20/5=4
X^(4/3)= 21.54
6 0
3 years ago
Other questions:
  • The two angles formed as a result of a bisector will always be
    14·1 answer
  • I need to know the 3rd question .
    15·2 answers
  • the population of masterton was 23 000 in 2012. Assume that Masterton population increases at a rate of 2% per year. Write an eq
    6·1 answer
  • Find the vertex for the equation: <br> y = 3x^2 + 18x + 30<br> (-3, 3)<br> (-3, -51)<br> (3, 111)
    6·2 answers
  • In a certain chemical,The ratio of zinc to copper is 3 to 11.A jar of the chemical contains 286 grams of copper.how many grams o
    7·2 answers
  • How much is 12.16% in millions???
    10·1 answer
  • 2 over 5 divided by 5 over 9
    12·2 answers
  • A window is shaped like a semicircle with a diameter of 5.2 feet. What is the area of the window? Round to the nearest tenth.
    6·1 answer
  • Pool A is filling up Pool B because the of the graph for Pool A is that of the graph for Pool B.
    5·1 answer
  • Each question Sandra answers incorrectly changes her overall score by - points. Sandra's
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!