se lanza una piedra a un estanque de agua tranquila el cual crea ondas concentricas que aumentan el radio al pasar el tiempo. cuando la onda exterior alcanza 3 metros de radio, aumenta a una rapidez de 5 cm/s¿a que rapidezaumenta dicha areadel circulo por dicha onda?

Answers

Answer 1

Answer:

This is what she/he is saying:

A stone is thrown into a pool of calm water which creates concentric waves that increase the radius over time. When the external wave reaches a radius of 3 meters, it increases at a speed of 5 cm / s, at what speed does this area of the circle increase by said wave?

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Find the measure of an interior angle of a regular polygon that has 10 sides

Answers

Answer: The sum of the measures of the interior angles of a decagon (10 sided polygon) is 1,440. We found this by using the formula (n-2)(180). Thus, to find the measure of each interior angle we simply divide the sum by the number of total sides in the polygon. 1,440/10 = 144.

Step-by-step explanation: Hopefully this helps!

Zoey invested $230 in an account paying an interest rate of 6.3% compounded daily.Assuming no deposits or withdrawals are made, how much money, to the nearest
hundred dollars, would be in the account after 12 years?

Answers

Answer:

A ≈ $500

General Formulas and Concepts:

Pre-Alg

Order of Operations: BPEMDAS

Algebra I

Compounded Interest Rate: A = P(1 + r/n)ⁿˣ

A is final amount
P is initial (principle) amount
r is rate
n is number of compounds
x is number of years

Step-by-step explanation:

Step 1: Define

P = 230

r = 0.063

n = 365

x = 12

Step 2: Solve for A

Substitute: A = 230(1 + 0.063/365)³⁶⁵⁽¹²⁾
Divide: A = 230(1 + 0.000173)³⁶⁵⁽¹²⁾
Multiply: A = 230(1 + 0.000173)⁴³⁸⁰
Add: A = 230(1.00017)⁴³⁸⁰
Exponents: A = 230(2.1296)
Multiply: A = 489.808

Ashley is buying mulch for her square garden. She measures one side of her garden to be 7.4 feet. How many square feet is her garden?f72

Answers

Answer:

Step-by-step explanation:

Area of a square = Length * Length

Given

Length of garden = 7.4feet

Area of the square = 7.4 * 7.4

Area of the square = 54.76 ft²

Hence the area of the garden is 54.76 ft²

What is the value of the expression when a = 6, b = 4, and c = 8? 2a/3b−cA: 1

B: 3

C: 8

D: 12

Answers

Answer:

Step-by-step explanation:

$(2a)/(3b-c) \n=(2(6))/(3(4) - 8) \n=(12)/(12-8) \n=(12)/(4) \n=3$

I hope I was of assistance! #SpreadTheLove <3

Help, ill mark brainliest

Answers

Answer: FIRST OPTION.

Step-by-step explanation:

First, it is important to remember that the Slope-Intercept form of the equation of a line is the shown below:

$y=mx+b$

Where "m" is the slope of the line and "b" is the y-intercept.

By definiton, given a System of Linear equations, if they are exactly the same line, then the System of equations have Infinely many solutions.

In this case you have the following System of Linear equations given in the exercise:

$\left \{ {{y=-2x+5} \atop {y=ax+b}} \right.$

So, since you need the system has Infinite solutions, you know that the slope and the y-intercept of both lines must be equal.

Therefore, you can identify that the value of "a" and "b" must be the following:

$a=-2\n\nb=5$

So the Linear System would be the shown below:

$\left \{ {{y=-2x+5} \atop {y=-2x+5}} \right.$

Find the ratio of 4km to 1200m

Answers

Answer:

10 : 3

Step-by-step explanation:

4km = 4000 m

4000 : 1200 = 4000/1200 = 40/12 = 10/3 = 10 : 3

Answer:

convert 4km into meter.

1200m/4000m

3:10

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The Venn diagram shows the relationship betweenseveral sets of numbers. Where should 0.3% be placed in the Venn diagram? Real numbers Natural numbers, because 0.3% is a positive number B Integers, because 0.3% is a decimal Integers Rational numbers Natural numbers Rational numbers, because 0.3% can be written as a fraction Real numbers, because 0.3% is an irrational number

Sample annual salaries (in thousands of dollars) for employees at a company are listed. 51 53 48 62 34 34 51 53 48 30 62 51 46 (a) Find the sample mean and sample standard deviation. (b) Each employee in the sample is given a $5000 raise. Find the sample mean and sample standard deviation for the revised data set. (c) Each employee in the sample takes a pay cut of $2000 from their original salary. Find the sample mean and the sample standard deviation for the revised data set. (d) What can you conclude from the results of (a), (b), and (c)?

Need help ASAP What’s the area of a sum