Thursday

September 29, 2016
Total # Posts: 2,342

**Science **

What would the density of 8 g of the unknown substance from Zarkon be

*September 28, 2016*

**chemistry**

!@#$%^& you darren, idk how to do also

*September 24, 2016*

**algebra**

13 + [26 ÷ (−6 + 4 ⋅ 1)] My answer is 26 is this correct4.

*September 16, 2016*

**Physical science **

A simple lever is used to lift a heavy load. When a 58-N force pushes one end of the lever down 1.1 m the load rises 0.14 m. How much work is done by the 58-N force? What is the gain in potential energy of the load? How does the work done compare to the increased potential ...

*September 14, 2016*

**algebra need help**

how would you solve something like this 2xy X 3y X -y ______________ 2xy X 3xy X x The X are multiplication MY answer is -y over x2y the 2 goes above the x

*September 14, 2016*

**algebra Need to make sure that my answer is correc**

−( 3x + 3 ) + 2( 2y + 2 ) = -3x + 3 + 4y + 4 = -1x + 4y +7 Is this the correct answer

*September 12, 2016*

**algebra homework help**

−( 3x + 3 ) + 2( 2y + 2 ) Answer is :-3x+7-4y

*September 12, 2016*

**algebra help needed**

the answer is 4x-14y

*September 12, 2016*

**algebra help needed**

5(x+y)-(x+y) 5X+15Y-X+Y answer 6x-15y Us this correct

*September 12, 2016*

**algebra**

−4( 2x + y ) − ( 4x + y ) -4z+4u-4x+y -8x-3y My answer is this correct

*September 11, 2016*

**a**

−4( 2x + y ) − ( 4x + y ) -4z+4u-4x+y -8x-3y

*September 11, 2016*

**ALGEBRA**

−4( 2x + y ) − ( 4x + y ) =4x+4y-4x-4y -8x-3y

*September 11, 2016*

**Math**

9. Find two numbers whose difference is 20 and one third of their sum is 40.

*September 11, 2016*

**algebra**

3x − y2 − 3 + 2y2 + 2x − 4 I have to combine like terms My answer is 5x+1y-7

*September 9, 2016*

**Math**

-12 in the form of a/b where a and b are integers

*September 6, 2016*

**Math**

3.50x + 5.25y =2(3.50x) 3.50x + 5.25y = 1,225.00 Use Elimination Method -3.50( 3.50x + 5.25y ) = -3.50(7) -12.25x - 18.375y = -24.5 3.50 + 5.25y = 1,225.00

*September 3, 2016*

**Math**

A hot dog cart at the entrance of the Stadium sells hot dogs ($3.50) and hamburger ($5.25) for a total of $1,225.00. If it sells twice as many hot dogs as hamburgers, how many of each did it sell?

*September 3, 2016*

**Physics **

Michael flies in an airplane due north to Michigan. The pilot encounters a direct crosswind from the west of 120 mph. What direction must the pilot steer in order to end up with a resultant of due north and average velocity of 120 mph? Measure and calculate the speed of the ...

*August 28, 2016*

**Math **

Tell whether the sequence 1/3,0,1,-2 is arithmetic, geometric, or neither. Find the next three terms of the sequence. A.neither;7,-20,61 B.geometric;7,-20,61 C.arithmetic;1/3,1 1/3,3 D.geometric;-3 1/3, 5 5/9,9 7/27

*August 27, 2016*

**Geometry **

Myles was asked to draw a triangle xyz and then dilate it using the origin aa the center of dilation and a scale factor of 0.75.he thinks adding 0.75 units to the coordinates of the vertices of xyz will help him draw the dilated image. Explain why miles is incorrect,and what ...

*July 27, 2016*

**Math**

At 5:00 in the evening, a man who was 71 inches tall cast a shadow that was 163 inches tall. At the same time a flagpole cast a 756 inches shadow. How tall was the flagpole? Express your answer in two decimal places.

*July 17, 2016*

**Math**

Yes Steve. Triangular base. She just said leg lengths of 12, a base of 9, and height of 23.

*July 16, 2016*

**Math**

Find the surface area of the right prism with the given features: A right triangle with legs of length 12 a base of length 9 and height equals 23.

*July 16, 2016*

**Math**

The path of a satellite orbiting the earth causes it to pass directly over two tracking stations A and B, which are 35 mi apart. When the satellite is on one side of the two stations, the angles of elevation at A and B are measured to be 87.0° and 84.2°, respectively...

*June 22, 2016*

**Pre-Cal (Help Plz)**

So what is ∠C2? I'm confused

*June 22, 2016*

**Pre-Cal**

Evalute the expressions: 1). sin(π/3)+cos(π/3) 2). (cos 45°)^2-(sin 45°)^2

*June 15, 2016*

**Pre-Cal**

A 13-ft ladder leans against a building so that the angle between the ground and the ladder is 63 degrees. How high does the ladder reach on the building? (round your answer to the nearest foot)

*June 15, 2016*

**Math: Inverse Function (Plz help)**

Find the Inverse function of f: f(x)=8+[square root of(8+x)] f^(-1)(x)=_______, x>8

*June 9, 2016*

**Math - surface area **

A land scape is preparing a circular flowerbed. The bed has a 12-foot diameter. He will need 13 plants per square yard. How many plants should he buy? Thank you.

*June 5, 2016*

**english**

(Pronoun Agreement Error) The cafeteria was in an uproar because every student was overcharged for their lunch. NEW SENTENCE: The cafeteria was in an uproar because students were overcharged for their lunches

*May 11, 2016*

**english**

3. (Pronoun Agreement Error) The cafeteria was in an uproar because every student was overcharged for their lunch. NEW SENTENCE: The cafeteria was in an uproar because students were overcharged for their lunches.

*May 11, 2016*

**english**

Are the second sentences all correct with the changes: 3. (Pronoun Agreement Error) The cafeteria was in an uproar because every student was overcharged for their lunch. NEW SENTENCE: Every student in the cafeteria was in an uproar because they were overcharged for their lunch...

*May 11, 2016*

**Math**

What is the greatest common factor you can use to simplify the ration 85:51

*May 5, 2016*

**english**

Reciting includes a: verbalizing information b: saying main ideas aloud c: writing main ideas d" all of the above e" either b or c but not both I chose all of the above is this correct?

*May 4, 2016*

**english**

twenty years later mar can still remember all of the words of her high school fight song. This can be attributed to : Mary's devotion to her high school or previewing or reviewing or overlearning, I choose overlearning is this correct?

*May 4, 2016*

**9th grade Physical Science**

A.To the right B.To the left C.The rope will remain stationary D.The rope will move in both directions

*May 4, 2016*

**9th grade Physical Science**

Two dogs are fighting over a rope. The first dog is pulling with 10N to the right. The second dog is pulling with 15N to the left. Which way will the rope move?

*May 4, 2016*

**Pre-Algebra**

A mat is 3w inches wide and the frame is w inches wide around a 16in x 48 in poster. Type an expression for the amount of frame material needed.

*May 4, 2016*

**Math **

Brianna deposits $150 at the end of each quarter into an account that pays 8% compounded quarterly for 9 months. calculate the amount in the account at the end of the period. I did this .. 150[(1 + .08)^9x3 – 1] 3 divide the top half by .08/3 = 150[(1+0.027)^27-1] divide ...

*April 30, 2016*

**ethics**

There is a difference between power and authority. Which statement below best describes the relationship and/or difference between power and authority? All supervisors have power and authority. Supervisors gain authority from the people they supervise and power from those who ...

*April 22, 2016*

**Math**

We can find the solutions of sin x = 0.6 algebraically. (Round your answers to two decimal places.) (a) First we find the solutions in the interval [0, 2π). We get one such solution by taking sin−1 to get x = ________ (smaller value). The other solution in this ...

*April 21, 2016*

**english**

Is this question to inform: The bank says that I have no money left in my checking account, but that can't be true. I have plenty of checks left!

*April 17, 2016*

**Math**

Write the first trigonometric function in terms of the second for θ in the given quadrant. tan(θ), cos(θ); θ in Quadrant IV I believe to start this is 1/cos^2*theta. Am I write? If not, can you please help me?!

*April 14, 2016*

**Math**

An Arc of length 6 cm subtends a 80 degree angle in a circle. What is the radius of the circle? Also what is the area of that sector? What I have so far: S=R*80 degree S= R*4pi/9 6 cm= r* 4pi/9 R=6/4pi/9 R= 6*9/4pi R=54/4pi HELP!

*April 14, 2016*

**Math**

Roulette wheels in Nevada have 38 pockets. They are all numbered 0, 00, and 1 through 36. Of all 38 pockets, there are 18 red, 18 are black, and 2 are green. Each time the wheel is spun, a ball lands in one of the pockets, and each pocket is equally likely. If you spin the ...

*April 7, 2016*

**Statistics**

Roulette wheels in Nevada have 38 pockets. They are all numbered 0, 00, and 1 through 36. Of all 38 pockets, there are 18 red, 18 are black, and 2 are green. Each time the wheel is spun, a ball lands in one of the pockets, and each pocket is equally likely. If you spin the ...

*April 7, 2016*

**Statistics **

Roulette wheels in Nevada have 38 pockets. They are all numbered 0, 00, and 1 through 36. Of all 38 pockets, there are 18 red, 18 are black, and 2 are green. Each time the wheel is spun, a ball lands in one of the pockets, and each pocket is equally likely. If you spin the ...

*April 7, 2016*

**Physics 110**

How much energy is needed to raise 500 grams of water from 10 degrees Celsius to 40 degrees Celsius?

*March 28, 2016*

**math**

Please help me !

*March 26, 2016*

**math**

Brenda pours 1/2 of a bottle of soda into a punch bowl then she pours two 8 Oz cups for Tim and Ellen she pours 4 Oz for her father and 1/2 of what is left for her sister there is just enough left for Brenda to have a 4 Oz cup how much soda was in the bottle when she started? ...

*March 26, 2016*

**math**

i am a 3 digit number the sum of my digits is 10 my first digit and my last digit are the same one of my factors is 7 what number am i? A 181 B 262 C 343 D 505 CHOOSE ONLY ONE!!

*March 26, 2016*

**Engish**

Despite brawls caused by drunken fans, it is virtually impossible to eliminate alcohol from baseball stadiums. A major reason is that the key sponsors of baseball games are beer manufacturers such as Coors, Miller, and Busch. This is a Cause and Effect is this correct.

*March 26, 2016*

**english**

The relationship between these two sentences are: Comparison Is this correct Many Hispanic girls celebrate their fifteenth birthday in a special way. Similarly, Anglo girls have a special party for their “sweet” sixteenth birthday

*March 25, 2016*

**Math**

A certain recipe asks for two thirds cups of granola how much do you need to make 1/7 of a recipe

*March 25, 2016*

**math**

-3(x-1)+7+5(x-2)

*March 19, 2016*

**math**

thier ages add up to 102. How old is each person?

*March 16, 2016*

**math**

Aiden is 12 years older than Tim. Mical is 4 times older than Tim.

*March 16, 2016*

**Math**

The ratio between the height of the in a sink (h) in centimeters and the number of minutes it has been filling (m) is 0.95. The sink has been filling for 40 minutes. What is the height of the water in the sink.

*March 12, 2016*

**Math**

With these problems, be sure and draw everything out so you can see what's happening. h = 7*tan(25)

*March 6, 2016*

**Math**

F = 5(s) //F = father, s = son F + 4 + s = 56 5s + 4 + s = 56 6s + 4 = 56 6s = 52 s = 8 (approx) Son = 8 yrs Father = 40 yrs. Check: F = 5(s) = 5(8) = 40 S = 8 40+4 = 44 8+4 = 12 44+12 = 56.

*March 6, 2016*

**Electronics**

Is a circuit a bandpass filter only when it's a high pass filter followed by a low pass filter? Or can it ever be a low pass filter and then a high pass filter (cascaded together)? Does the order matter if it's then followed by a gain/amplifier stage?

*March 5, 2016*

**physcal science**

If the velocity of the car is increased to 45 km/hour, what is its kinetic energy?

*March 2, 2016*

**Maths**

y = -14sin(8x)2cos(5x) - 4sin(5x)cos(8x) u = -14sin(8x) u' = -112cos(8x) v = 2cos(5x) v' = -10sin(5x) u2 = -4sin(5x) u'2 = -20cos(5x) v2 = cos(8x) v'2 = -8sin(8x) y' = (uv') + (vu') + (u2v'2) + (v2u'2) y' = [(-14sin(8x))(-10sin(5x)] - [(...

*March 2, 2016*

**Chemistry**

How many mL of 0.101 M HCL are needed to neutralize 1.00 g of potassium hydroxide?

*March 1, 2016*

**Maths**

Did I differentiate these two functions correctly? y=2cos(2x)cos(14x) y'=-14 sin(14x)2 cos(2x)-4 sin(2x)cos(14x) y=2[cos 1/2(f1-f2 )x][cos 1/2(f1+f2 )x] y^'=-[(f1+f2 )/2]sin[(f1+f2 )/2 x]2cos[(f1-f2 )/2 x] - [2(f1-f2 )/2]sin[(f1-f2 )/...

*March 1, 2016*

**english**

The sentences that are correct with an appro sp hie are 3,4.5.7. and 8 Are these correct? 1.Canada’s mens’ hockey team wins gold medals almost every year. 2. Lets forget that we tried to build a racing car because it’s been an awful experience for us and our ...

*February 28, 2016*

**Chemistry**

If milk is refrigerated in containers of glass, plastic and cardboard, in which container to you believe the milk will have the most increase in lactic acid?

*February 28, 2016*

**english**

Then my other answer would be 8 is correct

*February 27, 2016*

**english**

I changed my answers the correct ones are 3,4,5 7 and 9

*February 27, 2016*

**english**

Out of the following ten sentences, 5 of them are correct in their use of apostrophes. Simply write the numbers of the five sentences that are correct. . The five sentences that I choose were correct were 3,4,6,7, and 8 Is this correct? Canada’s mens’ hockey team ...

*February 27, 2016*

**life orientation**

What are ways that can i recommend my friend on how She should approach conflict resolution?

*February 25, 2016*

**Math**

You receive an 11% commission on all the sales you make. If your commission for the month is $512.50, what was your total sales?

*February 25, 2016*

**Spring Physics**

A block of mass 3 kg is hung from a spring, causing it to stretch 9 cm at equilibrium. The 3 kg block is then replaced by a 4 kg block, and the new block is released from the position shown below, at which point the spring is unstretched.WHAT IS THE LENGTH OF THE SPRING AT ...

*February 23, 2016*

**English**

0. Since these personality characteristics depend on the growth of the layers of the little egg from which the person developed, they are very difficulty to change. Nevertheless, it is important for the individual to know about these types, so that he can have at least an ...

*February 16, 2016*

**english**

I need help with a paragraph: and the summary that I wrote: 10. Since these personality characteristics depend on the growth of the layers of the little egg from which the person developed, they are very difficulty to change. Nevertheless, it is important for the individual to...

*February 15, 2016*

**Algebra**

Would this be better: While these personalities are depend on the personal growth, so they are very difficulty to change.

*February 15, 2016*

**chem**

In order to neutralize the acid in 10.0 mL of 18.0 mol/L sulfuric acid that was spilled on a laboratory bench, sodium bicarbonate (baking soda) was used. The container of baking soda had a mass of 155.00g before this use, and out of curiosity it's mass was measured as 144....

*February 15, 2016*

**Maths**

100-40=60

*February 9, 2016*

**english**

Here is another paragraph with my summary: Though such people are jumpy, they like to keep their energy and don't fancy moving around much. They would rather sit quietly be themselves and keep out of difficulties. Trouble upsets them, and they run away from it. Their ...

*February 7, 2016*

**english**

Have to summarize this: situationsDick Tracy, Li'l Abner, and other men of action belong to this type. Such people make good lifeguards and construction workers. They like to put out energy. They have lots of muscles and they like to use them. They go in for adventure, ...

*February 7, 2016*

**english**

I have to summarize this: Somatotonic Mesomorph. If a man is definitely a broad type rather than a thick or long type, he is likely to be rugged and have lots of muscle. He is apt to have big forearms and legs, and his chest and belly are well formed and firm, with the chest ...

*February 7, 2016*

**english**

yes this is where I need help

*February 7, 2016*

**english**

How would I write this in a summary: 10. Somatotonic Mesomorph. If a man is definitely a broad type rather than a thick or long type, he is likely to be rugged and have lots of muscle. He is apt to have big forearms and legs, and his chest and belly are well formed and firm, ...

*February 7, 2016*

**Chemistry**

Question from text: "The reaction between phosphorus and chlorine is described by the equation, P4(s) + 6 Cl2(g) ↔ 4 PCl3(l). At equilibrium, the concentration of Cl2 is found to be 0.87 M. Calculate Keq." Keq = [PCl3]^4 / [P4] [Cl2]^6 I am not seeing how to ...

*January 28, 2016*

**Stats**

A sample of n=9 scores has a mean of M=20. One of the scores is changed and the new mean is found to be M=22. If the changed score was originally X=7, what is the new value?

*January 27, 2016*

**english**

Identify the infinitive phrase and its use. The scientists tried learn from his experiments.

*January 26, 2016*

**english**

Identify the italicized phrase. Charmed by the gracious manner, the producer offered her a contract.

*January 26, 2016*

**math**

Write each addition vertically. Decide which new groups you will make. Then add to see if you were correct. 256+273=

*January 25, 2016*

**english**

The deer which come to the salt lick, stay all summer.

*January 25, 2016*

**Math**

I need the image of a EFG triangle such tha EF=4CM,FG=3CM AND EFG=90

*January 24, 2016*

**Shurley English**

Please help classify each word in the sentence. Before dinner, Terry and I played a quick game of cards.

*January 12, 2016*

**2 NDT grade math **

Ok math smarties: Billy has 2 more green marbles than blue marbles. In all, he has 15 marbles. How many blue marbles does he have?

*January 11, 2016*

**MATHS**

Integrate the following(6x^5-2x+1)dx

*January 11, 2016*

**Math**

I THINK IT IS "D"

*January 11, 2016*

**Chemistry**

20.0 ml of ethanol (d=0.789 g/ml) initially at 7.2c is mixed with 31.7 ml of water (d=1.0g/ml) initially at 28.9c in an insulated beaker. Assuming that no heat is lost, what is the final temp of the mixture? I've got mass of both and specific heat capacity Do I put 0 for q...

*January 8, 2016*

**Chemistry**

I'm so confused

*January 8, 2016*

**Chemistry**

How do I solve for Tf?

*January 8, 2016*

**Chemistry**

I do not know how to set that up

*January 8, 2016*

**Chemistry**

20.0 mL of ethanol initially at 7.2 degrees Celsius is mixed with 31.7 mL of water initially at 28.9 degrees Celsius in an insulated beaker. Assuming no heat is lost, what is the final temp? I did not include the density, but I solved for mass, and have the SHC, for both. Don...

*January 8, 2016*

**statistics**

I have a statistics math problem. if someone could answer. "A basketball player makes 70% of free throws. he throws 15 free shots. what is the probability that the basketball player makes 7 or more free shots inside basket."

*December 21, 2015*