Posts by Justin
Total # Posts: 1,000

social studies
How are the todays badlands different from the same area millions of years ago? 
math
if a lion spends about 5/6 of their day sleeping, how many hours does a lion sleep??? 
Chemistry
A sample of a new plant food, "super gro", was analyzed. Determine the amount of grams of P and P2O5 as well as the percentage of P2O5 in a sample of "super gro". Mass of plant food sample: 12.50 grams Mass of MgNH4PO46H2O recovered: 8.93 grams 
Social studies
13. B 14. C 
Social studies
13. Why was Berlin airlift necessary when the Soviet Union isolated West Berlin A. East Berlin had no resources to help West Berlin B. The three nations that controlled West Berlin were not allies C. West Berlin had no access to a river D. West Berlin was surrounded by soviet ... 
English
I wanted to send you the other links. I even tried to search for something on Google. Sorry I can help you only with the link of the reputable online writing service as Primewritings is. The topic seems not that hard, to be honest. I am sure the writers will help you with it ... 
social studies
Why are New York,Boston, and Philadelpia important cities 
english
I am not sure that I can answer better than the other users did. However, I know where you can go to get this question answered in a proper way. Go to Primewritings site and let their writers do the job for you. 
University Genetics part 2
In humans pattern baldness is a sexinfluenced trait, whose degree of expression is controlled by the sex of the individual, such that it is autosomal dominant in males while autosomal recessive in females. On the other hand, colour blindness and haemophilia are both recessive... 
Algebra 2 Sine Graphing
A sine function has the following key features: Period=4pi Amplitude: 2 Midline y=3 Y intercept; (0,3) The function is a reflection of its parent function over the x axis. 
Physics Prob.
A 22.0 kg child plays on a swing having support ropes that are 2.00 m long. A friend pulls her back until the ropes are 45.0 ? from the vertical and releases her from rest. What is the potential energy for the child just as she is released, compared with the potential energy ... 
Economics
A perfectly competitive painted necktie industry has a large number of potential entrants. Each firm has an identical cost structure such that longrun average cost is minimized at an output of 20 units . The minimum average cost is $10 per unit. Total market demand is given ... 
math
Step 1. Subtract equations (3M + 5C=23.3)  (2M + 3C= 14.47). You get 1M + 2C = 8.83 Step 2. Do some arranging of the variables. You get 1M= 8.83  2C. Presto! You can plug it in now to one of your original equations. Step 3. Plug it in. I'll choose the first equation. 2(8... 
algrebra
The sum of the square root of those two numbers would be a complex number. Therefore it can't be an integer or an irrational number (irrational numbers are real numbers). It certainly isn't a whole number. I'd say the best choice out of the four you've given is... 
Economics
*Sorry, Total market demand is 150050P 
Economics
A perfectly competitive painted necktie industry has a large number of potential entrants. Each firm has an identical cost structure such that longrun average cost is minimized at an output of 20 units . The minimum average cost is $10 per unit. Total market demand is given ... 
Biology
Plz i need help. Plants are green because the pigments in plants reflect green light. Blue and red light give them the most energy to power photosynthesis. You are conducting an experiment to see how different colors of light affect the growth of plants. You place three small ... 
Math 2
60 
Science
My answer C 
Science
What is a factor that limits a technological design? A. a prototype B.a tradeoff C.a constraint D.a patent 
Chemistry
When 20.0mL of 1.40M solution of calcium nitrate is mixed with 70.0mL of 0.234M potassium iodate, a precipitate Ca (IO3)2 is formed. Calculate the concentrations of both NO3 and IO3 before mixing and after mixing 
Chem
Thank you 
Chem
When 20.0mL of 1.40M solution of calcium nitrate is mixed with 70.0mL of 0.234M potassium iodate, a precipitate Ca (IO3)2 is formed. Calculate the concentrations of both NO3 and IO3 before mixing and after mixing. 
Chemistry
Thank you! 
spanish 3
is it tender? 
spanish 3
escribe la forma del verbo indicado en el tiempo indicado. yo / tener / future 
Math
Sneakers are $70×0.25(25%off)=$17.50. Take the original price of $70$17.50(25%off)=$52.50. Now for the sales tax. 52.50×.06 (6%tax)=$3.15tax. 52.50+3.15=$55.65 (price paid for sneakers) 
Math
The original price for a pair of sneakers was $70. John bought them on sale for 25% off. The sales tax was 6%. How much did John pay for the sneakers, including sales tax? A $16.80 B $18.55 C $52.50 D $55.65 
LANGUAGE ARTS
i said suits for men. So suits is dresses now i guess so 
LANGUAGE ARTS
i have a research presentation essay and this what i need introduction, body, conclusion, and source of citation. 
LANGUAGE ARTS
This is what i got so far "In a Christmas carol and Victorian period have the same clothing such as dresses for women and suits for men. While men and women wear dresses its more common to wear shorts and shirts" 
LANGUAGE ARTS
Yes, I found out they wear long dresses with puffy skirts 
LANGUAGE ARTS
The topic is asking to research clothing in the Victorian period and then relate it to a Christmas carol and compare to today. Please help? 
Math
A typical around a track in the United States has a length of 440 yards. How many laps would need to be completed to run a mile 
Math
1. Graph the points A ( 5,0) B ( 4, 3) and C ( 0, 4) A B C D 2. Identify the quadrant in which (3, 6) lies A II B IV C I D III 3. Determine which ordered pair is a solution of y = 2x  3 A ( 2, 7) B ( 0, 3) C ( 4, 11 D ( 5, 7 5. Graph the linear equation y= 3x + 3 A B ... 
Science
How are earth and Venus similar? How is Venus different from Earth? Provide two similarities and two differences. 
Math
We can't do your homework for you. Sorry. 
Science
Explain what Maria and craters are and how they formed. 
Geometry
I don't know how to post it so... 
Geometry
Which of the following represents a chord but not a diameter of the circle? A. TR B. SN C. PM D. SM 
Algebra
Barb is making a bead necklace. She strings 1 white bead, then 3 blue beads, then 1 white bead, and so on.Write the numbers for the first eight beads that are white.What is the rule for the pattern 
Geometry
A 20 meter long cable is used to support a telephone pole, holding it perpendicular to the ground. If the cable forms a 60 degree angle with the ground, how high up the pole should the cable be attached? 
Math
No. I am not sure if I am suppose to give you the answer but if you calculate the percentages than you can see the answer. 
Science
You are pushing a friend on a sled. You push with a force of 20N. Your friend and the sled together have a mass of 60kg. Ignoring friction, what is the acceleration of your friend on the sled? 
Calculus III
Hi, this question is about Langrange multipliers. Given f(x,y) = y^2  x^2, subject to the constraint g(x,y) = 0.25x^2 + y^2 = 1, find the max and mins. So I found the partial derivatives for both f(x,y) and g(x,y): fx = 2x fy = 2y gx = 0.5x gy = 2y And set them up for the ... 
Calculus III
Hi, this question is about Langrange multipliers. Given f(x,y) = y^2  x^2, subject to the constraint g(x,y) = 0.25x^2 + y^2 = 1, find the max and mins. So I found the partial derivatives for both f(x,y) and g(x,y): fx = 2x fy = 2y gx = 0.5x gy = 2y And set them up for the ... 
language arts
Could you check my answer please..thank you Which of the following sentences contain a linking verb? A. Teresa wore her favorite shoes today. B. Her shoes look really comfortable.xxx C. She put them on with striped socks. Teresa walked for hours without a complaint! thank you 
language arts
Could you check my answer please..thank you Which of the following sentences contains a linking verb? A. Yesterday, Sarah experienced rock climbing for the first time.xxx B. Sarah seemed nervous at first. C. She climbed very well for a beginner. D. I think Sarah wants to go ... 
Calculus III
Hi, this question is about Langrange multipliers. Given f(x,y) = y^2  x^2, subject to the constraint g(x,y) = 0.25x^2 + y^2 = 1, find the max and mins. So I found the partial derivatives for both f(x,y) and g(x,y): fx = 2x fy = 2y gx = 0.5x gy = 2y And set them up for the ... 
Algebra
I need help understanding how to crossmultiply addition of inverse functions. I'm given this, 1/p+1/(p45) = 1/30 The answer goes to p^2105p+1,350 = 0. My method has been adjusting the ratios of the numerator and denominators to give, [30(p45)]/[30p(p45)]+[30p]/[30p(p... 
Ray Optics
Hi, this is about thin film interference in ray optics. My book presents two similar problems, but somehow uses different paths for the same variable. I'll list out the given variables: Problem A n1 < nf > n2, delta phase is therefore lambda over two. Film ... 
General Physics II
Hi, this is about thin film interference in ray optics. My book presents two similar problems, but somehow uses different paths for the same variable. I'll list out the given variables: Problem A n1 < nf > n2, delta phase is therefore lambda over two. Film ... 
6th grade math
My question is: Between which two whole integers is 0.5. how do I explain this 
art
Could you please check my answer please...thank you Which of the following is the best evaluation of the artwork based on the criterion that the piece feature imaginary creatures or things. 1. The artwork is successful because it features a fully clothed ravenheaded winged ... 
math
how many sets of 4 are there in sets of 24? 
Math
Let (7,3) be a point on the terminal side of theta. Find the exact values of sin of theta, csc of theta and cot of theta? 
Math
If one hundredths is divided into ten equal parts, each part is one (BLANK ) 
pre algebra
2.5x10^5 equals what? 
Math
n/3 + 5 > 4= Have to explain all of the steps...every time I do it I come out with a different answer. Please I am totally lost on this one...Thank you. 
art
The math tessellations: unit 4 1. The architectural design was created by: 1. using an organic pattern in the form of tessellation. 2. using a geometric pattern in the form a tessellation. 3. using no definite pattern and placing shapes randomly. 4. using patterns that ... 
american goverment check answers
its A bruh 
science
Which of the following can be used to explain why fossils of the same kinds of organisms can be found in different regions of the world? biogeography adaptation continental drift dispersal I think it is dispersal..but not sure..thank you for your help. 
Biology 20
I'm using chromatography to identify compounds in a leaf extract for a lab, and one of the evaluation questions is 'Suggest a step that could be added to the procedure to isolate a specific compound for chemical testing.' What step could I use? 
Math
You're given a fraction, 3/4m. It's in your best interest to convert the whole number, 10m, into a fraction. This can be thought of writing 10/1, and multiplying both the numerator, 10, and the denominator, 1, by 4. Once you have 10m with the same denominator as 3/4... 
Organic Chemistry
Oh you are right! One of my secbutyls had a different position for its branch. Thanks! 
Organic Chemistry
Hi, I'm trying to fix an incorrect IUPAC name of a molecule. It is given as trisecbutylmethane, and I have to draw it out to correct it. Here's the thing: how do I draw incorrect IUPAC name? I can't wrap my mind around it. What I have drawn out is a tertiary carbon... 
Calculus III
Topic: Quadric surfaces. I have two homework problems, and they are quite a doozy for me. So the point is, I am given details of a quadric surface on the Cartesian coordinate system, and thus have to use the data to construct an equation through it. ====================== Find... 
PHYSICS
Ah, I initially thought you had too little information, but in fact this is theory (or should be). Depends, if you are neglecting dissipative forces like drag, this is quite easy. So in projectile motion (the arrow is a projectile), we like to separate our axes into their ... 
math
Shalina uses the expression 3x to determine the cost of x notebooks. What is the cost of 24 notebooks? 
General Physics
A 2.3 kg block is initially at rest on a horizontal frictionless surface when a horizontal force in the positive direction of an x axis is applied to the block. The force is given by F with arrow(x) = (2.6 − x^2) N, where x is in meters and the initial position of the ... 
Physics
Five masses are positioned as follow in the x and y axis: m1 = 1 kg at (0,0) m2 = 2 kg at (4,0) m3 = 3 kg at (4,5) m4 = 4 kg at (0, 5) m5 = 5 kg at (2, 2) All x and y values are in meters. Find the magnitude and direction of the net gravitational force experience by m3 due to ... 
Physics
A 4.0kg mass is placed at (3.0, 4.0) m, and a 6.0kg mass is placed at (3.0, 4.0) m. What is the moment of inertia of this system of masses about the xaxis? 
General Physics
Clarification: this is calculusbased physics, so the methodology is not restricted to trigonometry only. I have two questions, so hopefully I can divide them up nice and evenly. Also, if you know where I should copy and paste proper vector notation from, please tell me so I ... 
World History
Who names himself dictator during the late Republic and early Empire? 
World History
How did the Punic Wars effect the Roman Army? 
World History
Oh ya I think it is B but I am not sure. 
World History
1. What island did Rome gain control of as a result of the first Punic War? A: Sicily B: Corsica C: Mediterranean D: None of the above 
Math
Find the first 4 terms in the expansion of ((3x^4)(2/y^5))^9 
SciencePhysics
As shown below, a 2.00 kg mass is connected to an unknown mass m via a massless rope and a massless, frictionless pulley. The mass m is on a ramp angled 20 degrees above the horizontal. The coefficients of kinetic and static friction are μk=0.35 and μs=0.45, ... 
Pre Algebra (Math)
A certain animal can go for a long period of time without drinking water. When it does drink, its body weight can increase by 40%. Suppose the animal weighs 80 pounds after a long period without water. How many pounds can the animal gain when it drinks? 
Physics
A 4.00kg block rests on a 30.0° incline. If the coefficient of static friction between the block and the incline is 0.700, what magnitude horizontal force F must act on the block to start it moving up the incline, given g= 9.80m/s^2? 
college mathematics
100.48 
chemistry
If the water in 500mL of 0.44M NaCl solution is evaporated, what mass of NaCl will remain? 
Calculus II
So I'm trying to integrate a function using partial fractions. Here is the integral of interest: ∫(3x^2+5x+3)/[(x+2)(x^2+1)]dx. Since the numerator's degree of the polynomial is lesser than that of the denominator's degree, it is clear to separate. However, ... 
Calculus II
Is it possible to rewrite as: ∑(1)^n[x^(2n+3)]/(2n+1)! 
Calculus II
So I have Maclaurin series for sinx = ∑(1)^n[x^(2n+1)]/(2n+1)!. I need to write out new series for sin(x^2). This will be equivalent to squaring the whole Maclaurin series of sinx, right? I'm just confused as to what terms are squared, and thus what the final ... 
science
the solubility of an unknown substance is 120 grams of water at 70 degrees celsius. What is it? 
chemistry
What is the molarity of the following solutions? A. 0.96 g MgCl2 in 500 mL solution B. 9.33 g Na2S in 450 mL solution C. 2.48 g CaF2 in 375 mL solution 
chemistry
When 23g of C8H18 is combusted at STP, how many liters of carbon dioxide is produced? 
Science /bio
Any foods or fruits highest in glucose? 
Social studies
Nationalism ? 
Art
Sorry I didn't read the question right it's D,right? 
Art
Correct me I read the link and It said that they have supreme power 
Art
what idea did the halos on the heads of Pichore's main subjects emphasize A) plentiful wisdom •• B) Exceptional power C) Divine connection D) extraordinary creativity Correct me 
Chemistry
Sorry for the postscript but I had to add spaces and the parentheses so the picture album will upload. If this is just too unconventional then I apologize. 
Chemistry
Okay so I understand this is incredibly unconventional, but I have a big favor to ask. I just got a chem exam back and my teacher still has not posted my scantron score. I was wondering if it is at all possible for you guys to just spotcheck for accuracy. It can be rough or ... 
Math
Find two numbers which have a sum of 2 and a product of 2. This question is driving me crazy, please help!! 
math
In which quadrant does the angle Θ lie given that Cos Θ > 0 and tan Θ > 0? A. Quadrant I B. Quadrant II C. Quadrant III D. Quadrant IV B? 
Chemistry
A Sample of M2O3 weighing 11.205g is converted to 15.380g of MCL3, where M is the unknown metal, then what is the identity of M? 
math
If sierra swims laps every morning for week . she swims 4/5 of a mile every morning. how many miles does she swim in one week Do i multiply or divide 5/1 x 4/5. please help