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
Sphinxa [80]
3 years ago
6

Solve for A if is 3.14 and R = 3

Mathematics
1 answer:
gavmur [86]3 years ago
5 0

Answer:

A = 28.26

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Step-by-step explanation:

<u>Step 1: Define</u>

Equation:   A = πr²

Given:   π = 3.14, r = 3

<u>Step 2: Evaluate</u>

  1. Substitute:                    A = 3.14(3)²
  2. Exponents:                   A = 3.14(9)
  3. Multiply:                        A = 28.26
You might be interested in
A Game of Thrones fan predicts there is a 70% chance that her favorite character will survive the next season and a 75% chance t
zepelin [54]

Answer:

  • <em>The probability that the second favorite character will die given that the first favorite character dies is</em><u> 0.53</u>

  • <u>This kind of probability is called conditional probability</u>

Explanation:

Name the events and their probabiities:

  • Event  A: her favorite character will survive, so P (A) = 0.70

  • Event B: her her second favorite character will die, so P(B) = 0.75

  • Both characters will die ⇒ P (B and not A) = 0.16

You want to find P (B | not A).

That is the probability of the succes B (the second favorite character will die) given other event (not A or the first favorite character dies) is certain (it happens) and that is called conditional probability.

  • P (not A) is the complement probability of A, so P (not A) = 1 - P(A) = 1 - 0.7 = 0.3

So, you have P(B), P(not A) and want to find P (B | not A)

The definition of conditional probability is:

  • P (X | Y) = P (X and Y) / P (Y)

So, replacing with our terms, we get:

  • P ( B | not A) = P (B and not A) / P (not A) = 0.16 / 0.3 ≈ 0.53
5 0
3 years ago
A brand of popcorn instructs users to microwave for 90–120 seconds on high. A student wonders what the ideal microwave time for
san4es73 [151]

Answer:

A.) the levels

Step-by-step explanation:

edge 2020

6 0
3 years ago
Read 2 more answers
A show uses 12 gallons of water in three minutes complete the table and the graph.
gregori [183]

Answer:

2 mins= 8 gallons 3 mins= 12 gallons 4 mins= 16 gallons 5 mins= 20 gallons 6 mins= 24 gallons

Step-by-step explanation:

12 divided by 3 equals 4 so just multiply 4 by each minute

5 0
3 years ago
Explain how you can find 4x754 using two different methods.
lesya692 [45]

You can multiply or you can estimate it!

Hope I could help

4 0
3 years ago
Read 2 more answers
The value of 33+4⋅(52−42)
joja [24]

We will use order of operations (PEMDAS) to solve this.

1.) 33+4(52-42) This is our equation. So, first we are gonna subtract 42 from 52.

2.) 33+4(10) Now that we did that, we are gonna add 4 to 33.

3.) 37(10) Lastly we are gonna multiply 37 by 10.

The answer is gonna be 370. If this helped, maybe consider giving me brainliest :)

7 0
3 years ago
Read 2 more answers
Other questions:
  • Tapiwa raked %5, percent more leaves than Adam raked. Tapiwa raked 357 liters of leaves. How many liters of leaves did Adam rake
    9·1 answer
  • 432 square feet 2/3 is with what's the length
    15·1 answer
  • Is d=45t a linear function
    6·1 answer
  • What is the first step needed to solve (3/4)x-3=-18
    9·2 answers
  • Compute F(s), the Laplace transform of f(t) = e^(5t) (t^2 +4t +7)
    14·1 answer
  • The probability that a student takes a history class and a sociology class is 0.051. The probability that a student takes a hist
    15·1 answer
  • Find the unit rate if you have to pay $36 for 3 tickets
    8·2 answers
  • What are sin 0 and cos 0 for each value of 0?
    12·1 answer
  • 1/2(x-6.5) = 3.16 what is x?
    12·2 answers
  • Researchers investigated the possible beneficial effect on heart health of drinking black tea and whether adding milk to the tea
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!