# Posts by mike

Total # Posts: 3,731

**Math**

A cube has edge lengths of 5cm each. The cube weighs 0.54 kg. What is its specific weight

*September 4, 2016*

**Physics**

A hot-air balloon is rising straight up with a speed of 3.0 m/s. A ballast bag is released from rest relative to the balloon when it is 9.5 m above the ground. How much time elapses before the ballast bag hits the ground?

*September 2, 2016*

**Strength of Materials**

A solid block resting on a horizontal surface needed a pull of 40N inclined at angle 25 degree to the plane just to move it, but a push of magnitude 200N inclined at the same angle to the plane just moved the block. What is the weight of the block, and the coefficient of friction

*September 2, 2016*

**College Physics**

At what voltage would a 9 μF capacitor have the energy to lift 3 grams by 1 cm? i understand i need the0.5CV^2 equation however I don't know how to answer this

*September 1, 2016*

**Algebra**

Write an equation that has variables on both sides and has a solution of -3.

*September 1, 2016*

**Algebra**

Write the verbal statement as an equation. Then solve. 2 more than 3 times a number is 17. My answer: 5x3.4 = 17 is this correct

*August 30, 2016*

**math**

Can you please help me. 3/x-1=8

*August 29, 2016*

**Math**

One-fourth of the girls and one-eighth of the boys in a class retake their school pictures. The photographer retakes pictures for 16 girls and 7 boys. How many students are in the class?

*August 29, 2016*

**math**

Determine the balance of $8,750 is invested at an APR of 3.25% (simple interest) for ten years.

*August 28, 2016*

**Math**

Nine more than the product of 9 and Malik's age Use the variable m to represent Malik's age

*August 17, 2016*

**Math**

What does ; mean in math for evaluation of expressions

*August 15, 2016*

**Chemistry**

How many grams of hydrogen chloride acid containing 10% by mass of hydrogen chloride acid would be required to dissolve 13g of zinc

*August 14, 2016*

**Chemistry**

Calculate the mass of solid which would be precipitated when 35g of carbon 4 oxide are passed through a solution of calcium hydroxide Show your work

*August 13, 2016*

**Math**

Hi. This are non-linear equations and I don't know whether to equate them together to get the graph or something. Y^2-2x+2=0 and x-y-5=0 2x^2+3y^2=21 and 3x^2-4y^2=23

*August 11, 2016*

**Calculus - Need help please**

Given the following function, y=tan(pi-3x) 1)determine the interval for the principal cycle. (^ Type your answer in interval notation) 2)Then for the principal cycle, determine the equations of the vertical asymptotes 3)find the coordinates of the center&#...

*August 4, 2016*

**GP**

two consecutive terms of a GP are the 2nd ,4th and 7th terms of an A.P respectively.find the common ration of the GP

*July 27, 2016*

**Physics**

Horizontal electric power lines supported by vertical poles can carry large currents. Assume that Earth’s magnetic field runs parallel to the surface of the ground from south to north with a magnitude of 0.50××10^-4 Tesla and that the supporting poles are 38 m...

*July 19, 2016*

**Math**

Two airplanes leave Dallas, Texas traveling in opposite directions. One is traveling 28 mph faster than the other airplane. How fast is the faster airplane traveling if the two airplanes are 2,320 miles apart after 2 hours and 30 minutes?

*July 17, 2016*

**math**

the kitchen is 12 ft wide and 14 ft long how many six inch tile will I need to cover the floor

*July 11, 2016*

**Biology**

1. When and where was the first cell born? How did it happen? 2. What are the circumstances that make the appearance of the cell in this earth? 3. What are the differences between prokaryotic and eukaryotic cell? How about plant and animal cell?

*July 3, 2016*

**Math**

is .0046 ( °C) the same units as ( °C)^-1??? what is the conversion

*July 2, 2016*

**Chemistry**

Well at least I don't feel so bad for not being able to figure out the problem. Thanks for your help!

*June 26, 2016*

**Chemistry**

It is not stated. The above question is all the information given.

*June 26, 2016*

**Chemistry**

Sorry, I have been stuck on this question. I would appreciate if someone could help me out. Approx how many mL of 0.25M BaCl2 solution would be required to precipitate all the sulfate if we assume the sample is pure sodium sulfate? Assume that the density of the barium ...

*June 26, 2016*

**Math**

Can you help me with this calculation, if instead of paying $124K in four equal annual installments we pay this amount up front what would be PV ?

*June 23, 2016*

**Physics**

One ball has 7 times the mass and twice the speed of another. 1. How does the momentum of the more massive ball compare to the momentum of the less massive one? Find the ratio of the momenta. 2. How does the kinetic energy of the more massive ball compare to the kinetic energy...

*June 18, 2016*

**Physics**

A 5.00-kg object is attached to one end of a horizontal spring that has a negligible mass and a spring constant of 420 N/m. The other end of the spring is fixed to a wall. The spring is compressed by 10.0 cm from its equilibrium position and released from rest. Question: What ...

*June 16, 2016*

**Physics**

A 37.0-kg crate rests on a level floor. A horizontal force of 50.0 N accelerates the crate at 1.00 m/s2. Calculate the frictional force on the crate. Calculate the coefficient of kinetic friction between the crate and the floor. I got the normal force, 363 N. Now just need ...

*June 11, 2016*

**Physics**

Mike wants to make a free throw; he realizes that if the ball is exactly 20cm above the hoop as it hits the backboard at the top of its trajectory, it will go in. The free throw line is 4.5 m from the plane of the backboard and the hoop is 3 meters from the ground, Mike throws...

*June 9, 2016*

**Physics**

Question 1: Dan is pulling on his dog’s leash, the dog is pulling with 40N of force and Dan is pulling with 50N of force, how fast are they going after 2 seconds? Question 2: If you want to throw a rock 50m with a 1 m sling, what frequency do you need to rotate the swing ...

*June 9, 2016*

**Math**

You decide to buy a 60 in plasma TV. You borrow $4300 from the electronics store at1.8% per month simple interest, with no payments due for 2 years from the date of purchase. How much will you owe on the loan after 15 months?

*June 6, 2016*

**Physics**

A dart is thrown at a dartboard 3.90 m away. When the dart is released at the same height as the center of the dartboard, it hits the center in 0.555 s At what angle relative to the floor was the dart thrown?

*June 6, 2016*

**Physics**

A dart is thrown at a dartboard 3.90 m away. When the dart is released at the same height as the center of the dartboard, it hits the center in 0.555

*June 6, 2016*

**Earth Science**

Why are boats more efficient than airplanes? They use less fossil fuels to move

*June 4, 2016*

**math**

To avoid a pond, Tom must walk 10 meters south and 24 meters east. To the nearest meter, how many meters would be saved if it were possible to walk through the pond? 10^2 + 24^2 = C^2 100 + 576 + C^2 C^2 = 676 C^2 = SQRT of 676 or 26 meters Not sure how to solve. I thought ...

*June 4, 2016*

**math**

To avoid a pond, Tom must walk 10 meters south and 24 meters east. To the nearest meter, how many meters would be saved if it were possible to walk through the pond? 10^2 + 24^2 = C^2 100 + 576 + C^2 C^2 = 676 C^2 = SQRT of 676 or 26 meters

*June 4, 2016*

**Math**

A 104 ft. ladder is leaned against a wall. If the base of the ladder is 40 ft. from the wall, how high up the wall will the ladder reach? 104ft.^2 + b^2 = 40ft.^2 10,816 + b^2 = 1,600 0 + b^2 = 10,816 - 1,600 = 9,216 C^2 = SQRT of 9,216 or 96ft.

*June 4, 2016*

**math**

A 104 ft. ladder is leaned against a wall. If the base of the ladder is 40 ft. from the wall, how high up the wall will the ladder reach? 104ft.^2 + b^2 = 40ft.^2 10,816 + b^2 = 1,600 0 + b^2 = 10,816 - 1,600 = 9,216 C^2 = SQRT of 9,216 or 96ft.

*June 3, 2016*

**math**

You are correct D.M=14

*June 2, 2016*

**Math Please Help Quick**

The probability of winning a game is 20%. If you play 20 times, how many times should you expect to win?

*June 2, 2016*

**math**

I need help solving this math problem I am so lost when it comes to these problems. Which is the difference of 25 1/8 - 12 3/4

*June 1, 2016*

**mathss**

a, b, c, d, e, f, and h are numbers such that a × b × c = 100, a × d × e = 0 and b × f × h = 0. Which of the following could be true?

*May 30, 2016*

**Calculus**

Solve the differential equation dy/dx = √[(x^3)(y)] with initial conditions x = 1, y = 2 so far i got y = (x^5)/25 + c so do i plug in 2 = (1^5)/25 + c 2 - (1/25) = c c = 49/25 = 1.96 is this correct?

*May 26, 2016*

**Math**

the larger of two numbers is three times the smaller number, and their difference id 34. find the two numbers.

*May 25, 2016*

**physics**

Suppose the stone is thrown at an angle of 40.0° below the horizontal from the same building (h = 42.0m) as in the example above. If it strikes the ground 36.7 m away, find the following. (Hint: For part (a), use the equation for the x-displacement to eliminate v0t from ...

*May 20, 2016*

**Organic Chemistry**

I'm sorry, of the product: Iron-salicylate complex.

*May 20, 2016*

**Organic Chemistry**

What volumes of 0.00250M salicylic acid solution and 0.1M ferric chloride solution would you need to make 50mL of a 0.00350M solution?

*May 20, 2016*

**English**

Thank you.

*May 19, 2016*

**English**

Identify the sentence in which the underlined verb does not agree with its subject. Everyone on the team (works) together well. Both of them (are looking) forward to the field trip. Neither of the boys is (excited) about playing football. One of the girls (are) going to enter...

*May 19, 2016*

**English/Language Arts**

Thank you

*May 19, 2016*

**English/Language Arts**

On a Works Cited page, which of the following should be in italics? title of a book************** title of a webpage title of a short story title of a newspaper article

*May 19, 2016*

**English/Language Arts**

C does not have a period at the end

*May 19, 2016*

**English/Language Arts**

Which of the following parenthetical citations is placed and punctuated correctly? A)The only casualty on Lewis and Clark's trip died from appendicitis (Davis 104). B)(Davis, 104) Kenneth Davis explains that the only casualty on Lewis and Clark's trip died from ...

*May 19, 2016*

**English/Language Arts**

Thank you Reed

*May 19, 2016*

**English/Language Arts**

A _____ includes all the works a writer used in the actual report, including direct quotes. footnote bibliography Works Cited page********** parenthetical citation

*May 19, 2016*

**English**

You are correct its a metaphor

*May 19, 2016*

**English**

How does the boldness Odysseus shows in the Cyclops’s cave drive subsequent plot events? A)Several of Odysseus’s men are eaten. B)Odysseus and his men spend the night in the Cyclops’s cave. C)Odysseus gives the Cyclops wine to drink. D)Odysseus and his men ...

*May 18, 2016*

**English**

tyvm

*May 18, 2016*

**English**

Read the following quote from Betty Bonham Lies’s retelling of the myth of Orpheus and Eurydice. When Orpheus made music, all the world stopped to listen. Wild beasts drew near him, so entranced they put aside their fierceness. Trees gathered around to hear his beautiful...

*May 18, 2016*

**calculus**

how did you get 4x^2-7x-10?

*May 18, 2016*

**calculus**

use logarithmic differentiation to find dy/dx for: [(x^2)(e^2)(x)] / [3√(2x-5)]

*May 18, 2016*

**Ms Sue Please**

ok thanks my question is in Science. Thanks you. I'm sorry I thought I had done something to you <3

*May 17, 2016*

**Ms Sue Please**

Why are my questions always skipped?

*May 17, 2016*

**Science**

Suppose the velocity of a car is 10 m/s at t = 0 s, and is 20 m/s at t = 30 s. Which of the following must be true? The car had a positive instantaneous velocity in the interval. The car had a positive instantaneous acceleration at each moment in the interval. The car had a ...

*May 17, 2016*

**Economics**

Checking to see if I got these right. The ones I selected are marked with an * 1. The price paid for the use of capital is called (Points : 1) mortgage payment. rent. profit. wages. *interest. 2. Capital consists of (Points : 1) stocks and bonds. the assets of the government...

*May 15, 2016*

**Macroeconomics**

Checking to see if I got these right. The ones I selected are marked with an * 1. The price paid for the use of capital is called (Points : 1) mortgage payment. rent. profit. wages. *interest. 2. Capital consists of (Points : 1) stocks and bonds. the assets of the government...

*May 15, 2016*

**Math**

The time t required to drive a certain distance varies inversely with the speed r. If it takes 4 hours to drive the distance at 35 miles per hour, how long will it take to drive the same distance at 45 miles per hour? about 3.11 hours********* 140 hours about 5.14 hours 393....

*May 11, 2016*

**Math**

How many real-number solutions does the equation have? –7x2 + 6x + 3 = 0 one solution two solutions*********** no solutions infinitely many solutions

*May 11, 2016*

**Math**

why is the Cartesian Coordinate System unique? The system is unique because it's concept of using a pair of axes in a three dimensional format

*May 10, 2016*

**Math**

Historically, why is the Cartesian Coordinate System unique? The system is unique because it's concept of using a pair of axes in a three dimensional format

*May 10, 2016*

**Geometry**

Historically, why is the Cartesian Coordinate System unique? The system is unique because it's concept of using a pair of axes in a three dimensional format

*May 10, 2016*

**physics**

a box (mass = 12 kg ) is going south at 12 m/s. A second box (mass = 18 kg ) is going northwest at 15 m/s. they collide and stick together. what is their common velocity (magnitude and direction ) after the collision

*May 9, 2016*

**calculus**

slideplayer(dot)com / slide / 7373773 slide 5 Care: they're working with 0.9rad/min

*May 9, 2016*

**Math**

I am completely lost on this one. How do I figure out what each letter stands for? Find all the solutions for this problem. each different letter stands for a different digit. letters that are the same stand for the same digit. ONE + ONE = TWO

*May 6, 2016*

**stat**

A nurse at a local hospital is interested in estimating the birth weight of infants. How large a sample must she select if she desires to be 90% confident that the mean is within 3 ounces of the sample mean? The standard deviation of the birth weghts is known to ...

*May 5, 2016*

**Algebra**

what is the domain function y=√3x+3 The sqrt sign goes over the 3x+3 can someone show me how to do this problem?

*May 4, 2016*

**Math**

Steve can you help me please i posted a ?

*May 4, 2016*

**Algebra**

a painter leans a 25 foot ladder against a building. The distance from the ground to the top of the ladder is 17 feet more than the distance from the building to the base of the ladder. Find the distance from the building to the base of the ladder and the distance from the ...

*May 3, 2016*

**chem**

If a solution initially contains (9.5x10^-2) M of HC2H3O2, (and no H3O+ or C2H3O2– ),what is the equilibrium concentration of H3O+ (aq) in the mixture?

*May 1, 2016*

**Life orientation grade 12**

l need answers please

*April 30, 2016*

**Math, please help**

Write a real world situation that can be represented by the expression 8(t - 3). Tell what the variable represents then give a value for t and evaluate the expression.

*April 25, 2016*

**Math**

Scores on the LSAT are approximately normally distributed. In fact, published reports indicate that approximately 40 percent of all test takers score at or between 145 and 155, and about 70 percent score at or between 140 and 160. The full range of scores is 60 pts (120–...

*April 24, 2016*

**Math**

Scores on the LSAT are approximately normally distributed. In fact, published reports indicate that approximately 40 percent of all test takers score at or between 145 and 155, and about 70 percent score at or between 140 and 160. The full range of scores is 60 pts (120–...

*April 24, 2016*

**I have a question[math]**

3/4 is bigger because 0.75 is the greater number out of them all!

*April 19, 2016*

**Math**

Order fractions from greatest to least. 1/10, 3/5, 1/4

*April 19, 2016*

**Math**

The equation would be 16 + 25 = x and you solve the equation by adding 16 and 15 together which gives you 41!

*April 19, 2016*

**math**

Mike was bored so he played with some colored blocks arranging them in a role he put 1 block in the first row 2 blocks in the second roll, 4 blocks and the third row and 8 blocks in the fourth row. If this pattern continues, how many blocks will Mike put in the 17th roll?

*April 19, 2016*

**Math**

If the perimeter of the rectangle is 120 units, then that means each side added together equals 120 which is 120 divided by 4 which gives you 30. Now to find the area, all you have to do is multiply the length and the width which is 30 x 30 which gives you 90 square units.

*April 19, 2016*

**Chemistry 101**

Write the molecular, total ionic, and net ionic, for the reaction. 1). Aqueous sodium carbonate is reacted with aqueous nickle (11) chloride. 2). Aqueous potassium hydroxide is mixed with aqueous hydrochloric acid.

*April 17, 2016*

**7th grade math**

Thank you so much Neko!!

*April 12, 2016*

**7th grade math**

Neko, Can you please show me how you got the answer?

*April 12, 2016*

**7th grade math**

Crystal made a bag of trail mix peanuts, raisins, and chocloate chips in the ratio of peanuts:raisins:chocolate chips = 5:3:2. There are 150 raisins in the trail mix. How many peanuts and chocolate chips are in the trail mix?

*April 12, 2016*

**math**

dont know

*March 31, 2016*

**Science**

A rectangular piece of wood measuring 20cm by 5cm by 3cm weighs 900kg.Find the greatest pressure the piece of wood can exert if placed on a table.

*March 28, 2016*

**calc. 1**

You are designing a poster with area 625cm^2 to contain a printing area having margins of 1cm at the top and bottom and 5cm on the sides. Find the largest possible printing area. Round your answer to the nearest four decimal place. I am aware that i should recognize that area ...

*March 24, 2016*

**PED**

I have a quiz and want to check them out to see if I got them correct: Question 1. When is it considered safe to provide both positive and negative examples of performance to students? (Points : 1) when the learners understand the skill when the learners have practiced the ...

*March 17, 2016*

**math**

Abel, Belle, And Cindy have $408 altogether. Belle has $7 more than Cindy and $5 more than Abel. How much does Abel have?

*March 17, 2016*

**Math**

I have a moving truck that gets 12 klms per gallon how car would you go on a 40g tank

*March 14, 2016*

**Algebra**

a certain recipe asks for ¼ of granola. how much is needed to make ¾ of a recipe?

*March 13, 2016*

**Physics**

Devise the series or parallel combination of 2 capacitances from the E6 series that gives the closest match to the capacitance 1.14 μF. Indicate the percentage error between the desired value and the value you obtain.

*March 10, 2016*