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
worty [1.4K]
3 years ago
11

A circle has a radius of 13 cm what is the area of the circle use 3.14 for pie

Mathematics
1 answer:
Natasha_Volkova [10]3 years ago
7 0

Answer:530.66

Step-by-step explanation:

Area of circle= πr^2  

13×13=169

169×3.14=530.66

You might be interested in
The Black Pearl is following a course that is represented by the equation. + ? = 14. . The interception course of the Flying Dut
GaryK [48]

According to the graph, the ships’ paths do not meet at any point.

<h3>What are linear equations?</h3>

Linear equations are equations that have constant average rates of change, slope or gradient

<h3>How to determine the point where the two ships' path meet?</h3>

A system of linear equations is a collection of at least two linear equations.

In this case, the system of equations is given as

2x = 5y - 40

-4x + 10y = 20

Make y the subject in the second equation, by adding 4x to both sides of the equation

4x -4x + 10y = 20 + 4x

This gives

10y = 20 + 4x

Divide both sides by 10

y = 2 + 0.4x

Substitute y = 2 + 0.4x in 2x = 5y - 40

2x = 5(2 + 0.4x) - 40

Expand

2x = 10 + 2x - 40

Subtract 2x from both sides of the equation.

2x - 2x = 10 + 2x - 2x - 40

Evaluate the like terms

0 = 10 - 40

Evaluate the like terms

0 = -30

The above equation is not true.

This means that the ships’ paths do not meet at any point.

This can be confirmed using the attached graph.

From the graph, we can see that the lines of 2x = 5y - 40 and -4x + 10y = 20 do not intersect

Hence, we can conclude that the ships’ paths do not meet at any point.

Read more about system of linear equations at

brainly.com/question/14323743

#SPJ1

8 0
2 years ago
What is the ratio 1.12 turned in to a fraction in simplest form?
Nitella [24]
x=1.121212...\ \ \ \ \ |multiply\ both\ sides\ by\ 100\\\\100x=112.121212...\\\\100x-x=112.121212...-1.121212...\\\\99x=111\ \ \ \ |divide\ both\ sides\ by\ 99\\\\x=\dfrac{111:3}{99:3}\\\\x=\dfrac{37}{33}\\\\x=1\dfrac{4}{33}\\\\Answer:\boxed{1.121212...=1\frac{4}{33}}
5 0
3 years ago
Joseph's lunch at a restaurant costs 13.00, without tax. He leaves the waiter a tip of 17% of the cost of the lunch, without tax
Musya8 [376]

Answer:

The cost before tax with tip is $15.21.

Step-by-step explanation:

To calculate percentage, take the percent (17%) and take its decimal form. This means 17% is 0.17 (like 50% would be 0.5). multiply the number you want the percentage of by the decimal form. 13*0.17=2.21. Add this to the cost before tax and before tip. 13.00+2.21=15.21. The cost before tax with tip is $15.21.

3 0
2 years ago
Direction if parabola. x2?6x+8=yx2-6x+8=y
STatiana [176]

{\text{Direction of parabola depends on the sign of quadratic coefficient of a }} \hfill \\

{\text{quadratic equation}}. \hfill \\

{\text{For given quadratic equation}}. \hfill \\

a{x^2} + bx + c = 0 \hfill \\

{\text{The parabola is in the upward direction if }}a{\text{ }} > {\text{ }}0{\text{ and in downward direction if }}a < 0 \hfill \\

{\text{Here, the equation of given parabola is }} \hfill \\

{x^2} - 6x + 8 = y \hfill \\

\Rightarrow y = \left( {{x^2} - 6x + 9} \right) - 9 + 8 \hfill \\

\Rightarrow y = {\left( {x - 3} \right)^2} - 1. \hfill \\

{\text{Thus, the parabola is in the upward direction}} \hfill \\

8 0
3 years ago
a pizza parlor has 8 different toppings and 3 different cheeses to choose from on the menu. how many pizza combinations are poss
Rom4ik [11]
Multiply 3 and 8 then you will have your answer
5 0
3 years ago
Other questions:
  • What are the x-intercepts of f(x)=x2+3x+2−4x−16.
    5·1 answer
  • 6. Solve for x in the equation x + 10 = 15.<br> © A. x = 25<br> © B.x=5<br> O C.x= 10<br> O D.x=-5
    12·1 answer
  • Given: AB || CD If the coordinates of point A are (8, 0) and the coordinates of point B are (3, 7), the y-intercept of AB is . I
    15·1 answer
  • Select the equation that most accurately depicts the word problem. One-half of a certain number is 95. 1/2 - n = 95 1/2 + n = 95
    14·2 answers
  • I am a fraction whose Numerator and denominator are both prime numbers less than 20. If you were to increase each term by 1‚ I w
    7·1 answer
  • the volume V of a right circular cylinder of height 3 feet and radius r feet is V=V(r)=3(pi)(r^2). find the instantaneous rate o
    12·1 answer
  • 5. Solve each equation by systematic trial.
    14·1 answer
  • I’ll mark brainliest
    5·1 answer
  • Solve for X. 3/4x+7/8=4 1/4 Enter your answer as a mixed number in simplest form in the box.
    15·1 answer
  • abcd is a parallelogram and ab is produced to x such that ab=bx as shown in figure. show that dx and bc bisect eachother at o.​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!