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
kirill [66]
3 years ago
12

suppose a weather app says that the probability of rain today is 30%. What is the complement of the event ""rain today"" what is

the probability of the complement
Mathematics
1 answer:
ValentinkaMS [17]3 years ago
4 0

Answer:

The complement event would be: "No rain today"

Its probability would be 70%

Step-by-step explanation:

Given the event:

A= rain today

The probability of rain today is 30%

P(A)=30%=0.3

The complement event has all the values that are not included in the event.

The complement event would be:

A'= No rain today

The probability of a event is the subtraction between 1 and the complement event:

P(A')=1-P(A)

Then, the probability of the event "No rain today" will be:

P(A')=1-0.3=0.7=70%

You might be interested in
3.1 Find the equation of the line passing through (4, 5) and parallel to the line 3x – 2y = 4.
valentinak56 [21]

                   \rule{50}{1}\large\blue\textsf{\textbf{\underline{Question:-}}}\rule{50}{1}

            <em>Find the equation of the line passing through (4, 5) and parallel to </em>

<em>                 3x-2y=4.</em>

<em />

<em>  </em>\rule{50}{1}\large\blue\textsf{\textbf{\underline{Answer and how to solve:-}}}\rule{50}{1}

First of all, We need to convert this equation from standard form (ax+by=c) into slope-intercept form (y=mx+b).

\rightarrow First, add 2y on both sides:-

                            \Large\textsf{3x+2y=4}

\rightarrow Now, subtract 3x on both sides:-

                  \Large\textsf{2y=-3x+4}

\rightarrow Divide by 2 on both sides

    \Large\text{$y=-\displaystyle\frac{3}{2}x +2$}

\rule{300}{3}

Now, let's find the equation of the line that's parallel to the given line.

Remember, if lines are parallel to each other, then their slope's the same.

So the slope of the line that's parallel to the line whose equation we just found, is

\Large\text{$-\displaystyle\frac{3}{2}$}

Now let's write the equation in point-slope form:-

\hookrightarrow\sf{y-y_1=m(x-x_1)}

Replace numbers with letters, as follows:-

\sf{y-5=-\displaystyle\frac{3}{2} (x-4)}

The equation above is the equation in point-slope form.

Incase you need it converted to slope intercept form, refer to the steps below ~

Multiply -3/2 times x and -4:-

\hookrightarrow\sf{y-5=-\displaystyle\frac{3}{2} x-6}

Now, Add 5 on both sides:-

\hookrightarrow\sf{y=\displaystyle\frac{3}{2} x+1}

\Uparrow\sf{Our\:equation\:in\:slope\;intercept\;form}

<h3>Good luck with your studies.</h3>

#TogetherWeGoFar

\rule{300}{1}

4 0
2 years ago
What is 10x34 please hurry the teacher i coming to collect the paper
Alexus [3.1K]

Answer:340

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Helppp quick! That’s the question^ please help guysss
Digiron [165]

Answer:

The slope represents the cost per gallon for heating oil while the y-intercept represents the fee for heating oil.

4 0
2 years ago
Which diagram shows the correct cuts?
USPshnik [31]
I need to see the diagrams to tell you.
5 0
3 years ago
5/12 x 4/5????????????
riadik2000 [5.3K]

Answer:

1/3

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Other questions:
  • Tarzan is swimming east at 2.4 m/s across a river that is 1660 meters wide and
    8·1 answer
  • In a phosphorus-nitrogen bond, the bond is _____ and the _____ atoms bears _____ charge
    8·2 answers
  • I know the answer is right but it said it’s wrong. Can I get a second answer to make sure? Thank you so much!
    13·1 answer
  • For which equation is x=0 NOT a solution?
    10·1 answer
  • anonymous 2 years ago In 2011 current population survey conducted by the us census bureau, two average household income were rep
    5·1 answer
  • A store pays$76.40 for a bookcase and marks the price up by 45%.What is the new price?
    5·1 answer
  • Dominic has 1 1/2 cups of yogurt to make smoothies. Each smoothie uses cup
    9·1 answer
  • A game spinner has 8 sections, 3 red, 1 blue, 2 yellow, and 2 green. What is the probability of not spinning a green?
    15·1 answer
  • Carol says that -520/105 • 16/15 • (-1/2) is less than 2.5 . Do you agree? Explain.
    9·1 answer
  • What is the simplified form of this expression (-3x^2+4x)+(2x^2-x-11)
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!