Is sound energy renewable or non-renewable?

Is sound energy renewable or non-renewable?

Two adjacent corrals are to be made using 240 ft of fencing. The fence must around the outer perimeter and across the middle.

  Find the dimensions so that the total enclosed area is as large as.possible. Show steps to get answer. How do you know what variable to solve for first and how do you determine the domain?... more


Could someone please explain to me the steps to solving this problem. I know it has something to do with logarithms.


hat prices x and y will maximize the telephone company's profit?

The telephone company is planning to introduce two new types of executive communications systems that it hopes to sell to its largest commercial customers. It is estimated that if the first type of... more


How is this even possible

of 40 kids, 24 sing, 16 play the drums, and 10 do neither. The ratio of the number who both sing and play drums to the number who do neither is a)1:4 b)3:5 c)4:5 d)1:1 what I want to know how... more

How would you figure this question out

My four test average is 85. I need a ? On my 5th test to average 88. 

I need help solving this problem

If I start at 2 and count by 3's my 50th number will be... I would like to know if there is a formula that can be used to solve this problem.

(-3,7) slope:0 in standard form

Write an equation in standard form of the line that passes through the given point, (-3,7) and has a slope of zero.

Grandfather clock shines the number of times that correspond to that time. How many times does it chime in 24 hours?

Each hour a grandfather clock chimes the number of times that correspond to that time of the day. For example at 3 pm it will chime 3 times. How many times does it chime in a 24 hour day?

How do you add 2D vectors a+b with the component method?

How do you add 2D vectors a+b if the magnitude of vector a is 10, its angle with (+) x-axis is 45 and angle with (+) y-axis is 45 ... then vector b has a magnitude of 3 angle with (+) x-axis... more


Watering HOle

Suppose that a local water hole for cattle has a half-life of 14 days If the water hole initially contained 11,000 gallons of water, how much water would it contain after 20 days?   and   After... more



A large electroscope is made with "leaves" that are 78-cm-long wires with tiny 47 g spheres at the ends. When charged, nearly all the charge resides on the spheres. If the wires each make a 26°... more

Write the equation for this situation

The number of bacteria in a colony double every three hours. At 8 am this morning, there were 120 bacteria. At 11 am, there will be 240 bacteria.


Is the given function linear?



Word problem

desmond and Melissa collect cards. They have 92 cards in all. Melissa has three times as many cards as Desmond. How many cards does Desmond have? 

calculating the present value of future cash flows

A financial company advertises on television that they will pay you$60,000 now in exchange for annual payments of $10,000 that you are expected to receive for a legal settlement over the next 10... more


Find the average rate of change of f(x)=2x^2+1 between the point (x, f(x)) and (x + h, f(x + h)).

Can someone help me with this question i don't really understand it. Thank you!


Given the sequence 162,54, 18,6 ...find s7

help please


find the point on the graph y=x^2 where the curve has slope m=5/4

please help with calc.


At their going-out-of-business sale, Bill's Bikes sold 41 bikes and had 60 left. Which equation could be used to find x, the number the store irst had?

At their going-out-of-business sale, Bill's Bikes sold 41 bikes and had 60 left. Which equation could be used to find x, the number of bikes the store had originally?

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