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
valentinak56 [21]
2 years ago
7

45 Points!! ASAP 1 QUESTIONS NEED HELP WITH PROBABILITY, NO SPAMS OR LINKS!!! THE FORMULA FOR THE AREA OF A CIRCLE IS ∏ R^2

Mathematics
1 answer:
iren2701 [21]2 years ago
7 0

Answer:

3.2%

Step-by-step explanation:

You want to find the area of the hole and the area of the board. The area of the board is 21x42 which is 882 inches squared. The circular hole has a radius of 3 inches so \pi3² which is 9\pi.

Now put in calculator \frac{9\pi }{882} which is pi over 98 which simplifies to 0.032.

You might be interested in
Find a function that models the area A of an equilateral triangle in terms of the length x of one of its sides.
creativ13 [48]
A(x)=\frac{x^2\sqrt3}{4}
3 0
4 years ago
A graduate student wanted to estimate the average time spent studying among graduate students at her school. She randomly sample
expeople1 [14]

Answer:

B. The width of the confidence interval would be smaller.

Step-by-step explanation:

By reducing the confidence level from 99% to 95%, the student assumes that there is more uncertainty about the new confidence interval than the previous one. That, being said, since the results aren't as certain, the confidence interval is widened towards a central average point because the new interval isn't as accurate.

Therefore, the answer is B. The width of the confidence interval would be smaller.

3 0
3 years ago
What 1,500 rounded to the nearest hundredth
Tcecarenko [31]

Answer:

2,000

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
How much interest is earned on a $5,000 loan at 10% interest for 3 years?
Aleksandr-060686 [28]

Answer:

$1500

.................

5 0
3 years ago
I have to write the definitions of all of these math terms, can you help me?
EastWind [94]

Answer:

Solution of an Equation in Two Variables - Generally, a two-variable system solution is an ordered pair that makes BOTH equations valid.

Graph of an Equation in Two Variables - In the Ax + By = C form, linear equations with two variables will appear, and the resulting graph is always a straight line.

Linear Equation - Any equation that can be written in shape is a linear equation. Ax+b=0, 0.0 Where the real numbers are a and b, and x is a vector.

Linear Function - Those whose graph is a straight line are linear functions. The following form has a linear function. F(x) = y = a + bx.

I can't add a drawing right now, but I help these help!!

3 0
3 years ago
Other questions:
  • The circumferences of two circles are in the ratio of 2:5. The radius of the smaller circle is 16 in. What is the radius of the
    14·1 answer
  • Find the total of x<br> x-2=2
    8·1 answer
  • Need help finishing problem 27.
    9·1 answer
  • The distance d a train travels varies directly with the amount of time t that has elapsed since departure. If the train travels
    6·2 answers
  • How do I "complete the square"? (Algebra)
    5·1 answer
  • -1/4 in decimal form
    7·1 answer
  • Which of the following is equivalent to the expression (3x² + 2x-8)-(2x² - 4x + 7)?
    15·1 answer
  • Class 8 squares and square roots without adding find the sum of a) 1+3+5+7+9+11+13+15+17.
    13·1 answer
  • What is the answer to this?
    14·1 answer
  • Which of the following situations describes a function? Remember you are looking for an independent variable and a dependent var
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!