# Posts by Anonymous

Total # Posts: 109,648

Geometry
I need help too

Geo
(SAT Prep) The diagonals BF and CE divide the hexagon ABCDEF into two equilateral triangles and a square. Find the perimeter of the hexagon if BF = 3 cm.

Maths,
(2/5)s + (1/4)s = (8/20 +5/20)s = (13/20)s so (7/20)s = 2.10

Algebra I
3 c + 5 b = 31 c = 3 b - 1 ====================== 3 (3b-1) + 5 b = 31 9 b - 3 + 5 b = 31 14 b = 34

This is so similar to ones I have shown you how to do that you should be able to do it.

Physics
By the way, I am assuming that either way the man goes up into the container. If not then he has to move his own mass up, not only the wheelbarrow.

Physics
It does? Not in my shipyard :) Block and tackle tends to have higher frictional losses than a wheelbarrow. All methods do the same amount of "useful" work. That is the weight times 4 meters up. With your simple machines, wheels up ramps, blocks and tackles, you ...

Physics
primarily friction loss, bearings heat up on axle where wheelbarrow wheel turns.

chemistry
.43 L (1.25 mol/L) = .525 mols needed .525 mols (1 Liter/3.9 mol) = 0.135 Liters

chemistry
.17 *1.1 = .187 mols CaCl2 = 111 grams/mol (40 + 2*35.5 ) .187 mol (111 g/mol) = 20.8 grams

Chemistry
N = 14 g/mol H = 1 g/mol NH3 = 14+3 = 17 g/mol 3.68 g * 14/17 = 3.03 grams of N needed by the way check grams of H 3.68 *3/17 = .65, just enough hydrogen:)

Chemistry
Hello, I really don't understand how to find the grams of moles in some of these reactions. If someone could help I would appreciate it. 1) Balance the following chemical reaction and determine the number of moles of HI produced when 2.33 moles of H2(g) are consumed in the...

Algebra
James has a 6-ft board that is 24 in. wide. He wants to cut it into five pieces to make a small bookshelf with two shelves. The front and back will not be covered. What should be the dimensions of the bookshelf to maximize the volume and use all of the 6-ft board?

Algebra
A page should have perimeter of 42 inches. The printing area within the page would be determined by top and bottom margins of 1 inch from each side, and the left and right margins of 1.5 inches from each side. What should be the overall dimensions of the page in order to ...

Math
The cost of renting a car is given by the formula C= 50n +0.15d, where C is the cost in dollars, n is the number of days rental, and d is the distance driven in miles. How much would it cost to rent a car for a 15- day road trip, and drive 475 miles each day? My Answer: 8 ...

Math
-1/8(x+35)= -7 How do I solve this??? I am confused

Math
I don't think so since the answer is nothing to the choices A. \$144 B. \$199 C. \$251 D. \$277

Math
Karen spents 450 dollars on monthly bills. Of this total amount, 12% is for phone service,1/10 is for Internet service, and 2/9 is for utilities. If the rest of the total amount is for food, how much does Karen have for food? I said \$130 since I subtract all

english
I worded the sentence to how I thought it should look like. So I'm guessing it's wrong? Do I put a comma before the h?

english
More states have, “… embraced laws requiring waiting periods for abortion…” however this is unfair to the women going through this. Would I capitlize the however or leave this sentence how it is

Algebra I
4 p = 2 m -2 so m = 2 p + 1 3 p + 9 m = 54 3 p + 9 (2 p + 1) = 54 etc

electronic
Determine the power dissipated in each of the resistors and the power entering the source. Express your powers in Watts. Remember that the power entering a two-terminal device is the product of the voltage across the device and the current through it in the associated ...

grammar simple, compound/complex
1. We like stories which have unusual endings. <-- compound 2. The novel that was written is about dragons. <-- complex 3. The main character Adela is interesting; she is a warrior. <-- Compound 4. Dragons are ruining the small village in the story. <--- simple 5. ...

english 2
In this scene the Sergeant compares Macbeth and Banquo to â€œAs sparrows eagles, or the hare the lion.â€ Knowing that the eagle and the lion are predators and the sparrow and the hare are prey, what does Shakespeare reveal about the characters ...

Ethics
Please assume that, in the process of assisted reproductive technology (ART), more human embryos were created than are needed by the donors for the purposes of their assisted reproduction. Under these circumstances, which of the following is most likely to conclude that it is ...

math
The particular solution of the differential equation dy/dt equals y over 4 for which y(0) = 20 is y = 20e?0.25t y = 19 + e0.25t y = 20 e0.25t - my answer y = 20e4t

math
a square green rug has a blue square in the center. the side length of the blue square is x inches. the width of the green band that surrounds the blue square is 6 inches.

Physical sciences
used as a fertalizer

Physical sciences
One use of nitrolim

chemistry
ur dumb then bobpursley

Math
Mr rainwater has 9 goats and 36 cows and 6 horses on his farm. He has 4 times as many cows as chickens. How many chickens does he have?

math
Is it possible to write a second linear equation to create a system that had one solution and the same y-intercept as -9x+3y=12?

Art
What technology does an X-ray use to see below the surface of a work of art? a) laser technology b) electromagnetic radiation c) color spectrums d) computer software

Ethics
n making a decision about the ethics of abortion, is viability (existence, development and growth) of the fetus an ethical valid distinction? Eventually babies may be viable from point of conception. Im really not sure what the question saying? help?

Velocity 49.50

Help! I need somebody, not just not anybody
I'm not sure if this is right but my answer was 49.50 for the skier

Physics
A novice skier starts from rest and slides down a frictionless 35 degree incline whose height is 125 m. How fast will she be going at the bottom?

Chem
Calculate the mass of 0.025 moles of sodium bicarbonat

Calculus
Given k(p) = |p|+4, find the average value of this function on the interval from -4 to 4. I get 6.

Math
those answers are wrong. i got a 4 out of 19...

SS
Image URL: h t t p : / / b i t . l y / 2 l o x J p 0 1. Which of the following best accounts for the number of southern votes cast for Johnson’s impeachment? a). Only a few southern states have been readmitted to the Union. b). Southern states only had voting rights in ...

ed tech HELP PLS
stacey

ed tech HELP PLS
Stacey is correct

Math - Calculus
f(x) = { x^2sin(1/x), if x =/= 0 0, if x=0} a. find lim(x->0)f(x) and show that f(x) is continuous at x=0. b, find f'(0) using the definition of the derivative at x=0: f'(x)=lim(x->0) (f(x)-f(0)/x) c. Show that lim(x->0)f'(x) does not exist. In particular...

Math
Yolanda buys two types of flowering plants. She buys 36 geraniums and 63 marigolds she wants to plant an eeach row will contain only one type of flowering each row will contain only one type of flowering plant Yolanda uses all the plants she bought in her garden determine the ...

Social studies

Social studies
If you take the late 1800s, for example, nativism led to the Chinese Exclusion Act of 1882.

Calculus
Find the derivative of the integral from 2 to 5x of (sqrt(1 + u^2))/u. My answer: (sqrt(1 + 25x^2)/5x) * 5????

Social studies
You know they mix up questions on test sometimes they aren't always the same. So they both could be right depending if they switched up questions. Believe me I found the hard way. If confused I always ask help with the individual question!! Sorry I'm just saying what ...

Math
25

physics
a sled weighing 100lb reaches the foot of a hill with a speed of 40ft/s.The coefficient of kinetic friction between the led and the horizontal surface of the ice at the foot of the hill is 0.030.

Physics-Energy
what is missing?

Physics-Energy
Loop Track Location 1 Location 2 Location 3 PE (J) 0.16 0.12 0.04 KE (J) 0.03 0.06 0.09 TME (J) 0.19 0.18 0.13 h (m) 0.4 0.3 0.1 v (m/s) 1.2 1.7 2.1 Roller Track Location 1 Location 2 Location 3 PE (J) 0.12 0.08 0.04 KE (J) 0.03 0.06 0.07 TME (J) 0.15 0.14 0.11 h (m) 0.3 0.2 ...

Math
Thank u Ms.Sue

algerbra 1
(k^2-4k+3)-(k-2)

french
Ces enfants n'aiment pas aller au village Nous n'etudians a la bibliotheque

Calc
Find the derivative from x to x^8 (integral) of ln t dt.

maths
in a class the ratio of boys to girls is 3;4 there are 12boys in the class what fraction of the class are boys and how many girls are there

Math
1. The sides of triangle CAB are in the ratio of 2:3:4. Segment BD is the angle bisector drawn to the shortest side, dividing it into segments AD and DC. What is the length, in inches, of the longer subsegment of side AC if the length of side AC is 10 inches? Express your ...

Chemistry
In the following chemical reaction between H2 and Cl2 to produce HCl, what is the mass of HCl produced with 0.35g of H2 completely reacts with 12.42g of Cl2?

Physics
d = (1/2) a t^2 300 = (1/2) a (900) so a = 600/900 = 2/3 = 0.67 m/s^2 F = m a = 670 N

social studies
don't do those answers they are wrong thanks a lot douchebag the correct answers are as followed 1.d 2.b 3.d 4.b 5.a 6.c 7.a 8.d 9.a 10.c I promise you this will give you 10/10 don't listen to the douchebag that posted answers before me

science
Probably each circle designates a constant pressure but I do not know if you are talking about meteorology or what.

maths
Sum of four term in GDP is 30 sum of first and fourth terms is 18 then find the term

math
Let f of x equals 4 for x less than or equal to 3 and equals the quantity 7 minus x for x greater than 3. Use geometric formulas to evaluate the integral from x equals 1 to x equals 7 of f of x, dx. I got 16 but i dont think it is right.

Math
You shoot a rifle at an angle of 42 degrees. The bullet leaves your rifle at a height of 6 feet and a speed of 810 feet per second. So I used the equation h(t)=6+(810 sin42)t-16t^2 to calculate that the bullet will hit the ground after 33.88580 seconds. Now how do I calculate ...

math
A farmer has enough food to last his 40 cattle 35 days. If he buys 50 cattle, how long can the same feed can last? Let X be the number of days the same feed can last

HISTORY
And so the American Rev ended 1783?

HISTORY
american revolution 1775 or 1763? Because I know the first battle was 1775 but I have to make a timeline and put when the event occurred so idk if I should put 1775 or when it all started, 1763.

Math
1/12

Social Studies
Please trust me, these are the correct answers: B D B C Have a good one! = )

Math Calc
John was wondering at what speed an arrow leaves a bow when it is released. So he went to a field and shot the bow at an angle of 45 degrees. The arrow hit the ground at a distance of 600 feet. Ignore air resistance. For simplicity, assume that the arrow is released at an ...

physics
32

Algebra
find the distance between the pair points (-2, -3) and (-12,-19)

chemistry
queous solution of sodium phosphate (Na3PO4). Adding which compound to the solution will cause a phosphate compound to precipitate?

Math
Find k so that (x-2) is a factor of x³+kx-4? Kindly help me this one

math
A train starting at 11 am travels east at 45 km / hr while another starting at 12 noon from the same point trivels south at 60 km / hr . how fast the train separating at 3 p. m

algebra
if you have a 15 ft ladder and angle it 75 degrees how far from the house will the base of the ladder be

algebra
if you have a 15 ft ladder and angle it 75 degrees how far from the house will the base of the ladder be

Algebra 1
the path is 2m

Math
The total length of 4 blue banner and 5 yellow banner is 49 m. The total length of 2 blue banner and 1 yellow banner is 17 m. All banner of the same colour have the same length. Find the length of a blue banner

Physics
two identical metallic ball spherical shells A and B charges 4Q and -10c are kept a certain distance apart a third uncharged sphere C is first placed in contact with sphere A and then with sphere B the sphere B are bought in contact and then separated find the charge on sphere...

math
c=1.5t+5

math
q4

Pre-Calculus
correction cot(?/2-?)cos?

Pre-Calculus
That is indeed hard, someone help this man.

Pre-Calculus
explain how to do these with please. I was out a couple of days so give clear instructions. sin(?/2-?)sec? cot(?/2-x)cos?

math
If f(x) is an even function and passes through the point (5, 3), what other point must lie on the graph of the function? Explain your reasoning.

Math
. The volume of a rectangular box is given by the expression V = (120 ? 6w)w2, where w is measured in inches. a. What is a reasonable domain for the function in this situation? Express the domain as an inequality, in interval notation, and in set notation. b. Sketch a graph of...

American History-WWII US
My Apologies Ms. Sue, Thank you for the Configurations.

American History-WWII US
Sorry Ms. Sue, I think there is a misunderstanding, I know all the Neutrality Acts, However, I am unable to know how all these acts connect together as the laws continued on.

American History-WWII US
How do the Neutrality Acts of 1935, 37, and 39 become less Neutral?

calculus
can someone also help me ndertsand this question ; y=x^3 +2x^2+3 represents the rate of an object over the interval [7, 10]. What is the average rate of the object over the time interval?

calculus
can someone help me with this problem y=x^2 -9 represents the velocity of an object over the interval [1, 5] in meters per second. What is the displacement of the object over the time interval?

Algebra
One more than the product of one and a number xxx.

physics
A car moves in a straight line with constant acceleration. Starting from rest at t=0 it travels 8.0 m in 4.0 s. What is the speed of the car at t= 4 s. PLEASE explain :)

English composition
Write a debate on the against the motion men should help at the kitchen