# Posts by DD

Total # Posts: 159

**science**

this is an object

**math**

Male and female high school students reported how many hours they worked each week in summer jobs. The data is represented in the following box plots: two box plots shown. The top one is labeled Males. Minimum at 1, Q1 at 3, median at 10.5, Q3 at 14, maximum at 21. The bottom...

**maths**

two poles 6m and 15m tall are 20 m apart a wire is attached to the top of each pole and is also staked to the ground some where b/n two poles where should be the wire be staked so that the minimum amount of wire be used?

**history**

i mean this test

**history**

what lesson is it

**MATH**

Out of 1200 pupils in a school, 900 are boys and the rest are girls. If 20% of the boys and 30% of the girls wear spectacles,find: a.how many pupils in wear spectacles b.what percent of the total number of pupils wear spectacles.

**math**

If you cut off 5pieces of glass from a 14 feet long, how long should each pieces

**History**

which answer best describes andrew johnson's relationship with the radical republicans? A:he founded the radical Republican movement B: he worked with the radical Republicans to pass important legislation C: you frequently voted legislation presented by the radical ...

**social studies**

jygfgvhbj

**math**

A flag pole sits on the front lawn of a school, 6.6 m from the front door. The angle of elevation from the base of the school to the top of the pole is 38°. Determine the height of the flagpole, to the nearest tenth of a metre.

**math**

Yesssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss!

**Health**

Thanxs salted caramel

**us history**

D B C A D I got a 100%

**math**

1 A C D 2 A 3 C 4 B 5 C I got a 100%

**math**

1 A C D 2 A 3 C 4 B 5 C

**grammar**

The team of reporters stunned their audience when the results of the election were revealed.

**Social studies**

plzzzzzz help :(

**Social studies**

5. William Tecumseh Sherman's "march to the sea" headed toward; A) Charleston, SC ****** B) Richmond Virginia C) Savannah Georgia D) Baltimore, Maryland 7. What battle began when the Union cavalry surprised the Rebel infantry raiding the town for shoes? (1 point...

**english**

well they were all right

**english**

Someone check these pleaseeee ????

**english**

2. Which of the following is the best reason to use visuals in a research presentation? A)) to illustrate your main point in an engaging manner B)) to illustrate any topic with data in percentages C)) to show different ways of looking at the same information D)) to show the ...

**english**

ok thank you very very much

**english**

I think it's c and b

**english**

which sentence contains a participial phrase? a) she wanted to spend time writing. b) her job is giving the attic dwellers their food. c) quickly snatching up the coat, she ran to her room. d) to get along well requires cooperation. which sentence contains an infinitive phrase...

**english**

I think it's a // everyone

**english**

Someone please help

**english**

In the following sentences, what word does the participial phrase modify? Everyone in the annex heard her screaming loudly. (1 point) a) everyone b) annex c) heard d) her pl E A S E HE L P

**physics**

dsvfsv

**chemistry**

What is the molality of 67.1g of Nano3 in 2.5l of water i get the molar mass of nano3 and divide it by the 67.1g and multipy it by 2.5l

**chemistry**

calculate the energy required to raise the temp of 72g of water from 50c tp 150

**chemistry**

is finding the molality and molarity the same concept

**chemistry**

IS IT POSSIBLE IF YOU CAN DO THIS ONE FOR ME SO I CAN DO THE REST ON MY OWN SO I HAVE A IDEA OF WHAT TO DO AND WILL BE EASIER TO UNDERSTAND

**chemistry**

how much heat is required to raise a 54g sample of water from -20 celsius to 90 celsius explain

**chemistry**

Dr Bob i would really like to thank you for your time this has greatly helped my learning in school

**chemistry**

How do u tell of a solute is polor or non polar based on what

**chemistry**

how many moles of solute are contained in 18.5ml 2.5m CaCL2

**chemistry**

is finding the molality and molarity the same concept

**chemistry**

it wud help alot if you can plug in and show how

**chemistry**

What is the ppm of 4.50mg of ddt in 10kg of seal fat?

**chemistry**

Increasing pressure does what to solubility. Increasing surface area? increasing temp?

**algebra2**

Tim has a pool slide that makes an angle of 25 with the water the top of the slide stands 4.5feet above the surface of the water A:how far out into the pool will the slide reach B:The slide makes a straight line into the water. How long is the slide

**algebra2**

At a hot air balloon festival jim watches a hot air balloon rise form a distance of 200 yards. A:From jims position the ballon seen to hover at angle of elevation of 50 What is the height of the ballon B:After a while the ballon seems to hover at an angle of 75 how high is it ...

**algebra2**

A kite string is 102 feet long. the angle between the kite string and the ground is 54.9. how high is the kite

**please check my english**

all of those answers are wrong you will get a F

**Chemistry**

I cant understand anything

**algebra2**

MS TAn bought a bmw for 62,000. The price of a bmw depreciates at the rate of 12% per year. How much will the saving account have after 30 years

**algebra2**

a saving account with an initial balance of $15000 grows at 1.33percent per year compounded continuously. How much will the saving account have after 30 years?

**Math 6th**

hyffdf

**calc**

Each of the regions A, B, and C bounded by f(x) and the x-axis has area 5. Find the value of ∫2 [f(x)+3x^2+2]dx. −4 I know to solve I can find the antiderivative of the equation but im not sure how to do this because of the f(x) in the parentheses.

**physics**

Two blocks with masses m1 = 13.4 kg and m2 = 74.2 kg, shown in the figure, are free to move. The coefficient of static friction between the blocks is 0.55 but the surface beneath m2 is frictionless. What is the minimum force F required to hold m1 against m2?

**math**

how is the sentence "15 more than x is 5" written as an equation? A. x+5=15 B. x=15+5 C. x-15=5 D. x+15=5 is the answer B.

**math**

Your store’s average basket (transaction) size for the month of March was $11.50 and you believe the average basket size will remain the same for your store in April. One of your hourly employees had an average basket size of $9.00 for the month of March and averaged 125 ...

**Math**

If 1/3 of. My salary is in one bank, 1/5 in another and 1/6 in another how much I have left

**health**

its not C.

**Statistics**

Suppose 5 cards are drawn, without replacement, from a standard bridge deck of 52 cards. Find the probability of drawing 4 clubs and 1 non- club.

**writting skill part 2**

c.(studios)

**science help plzzz**

B B D B C

**kjkj**

550.341

**Physics 101**

49

**Math**

12

**Chemistry**

i don't know

**Chemistry**

2.56 good answer

**Chemistry**

The density of methanol is .7918 g/ml/ How many grams of methanol do I have to add to 35.0ml of water to make a solution containing 25% methanol?

**statistics**

Researchers conducted a survey of parents of 66 kindergarten children. The parents were asked whether they played games with their children. The parents were divided into two groups: working class and middle class. The researchers wanted to know if there was an association ...

**Math**

Which statement(s) is/are true?Select one of the options below as your answer:A. A 25° angle is congruent to a 25° angle.B. Two intersecting lines form two pairs of congruent angles.C. It is possible for congruent angles to add up to 90°.D. All of the above are true.

**math**

x-y+z=3 2x-y+z=4 x+2y-z=-1 solve in Gaus-Jordan method

**Physics**

the C is wrong for me using the b in di/dt

**Physics**

E⃗ = 8.6 xˆsin(2πλz + 5.91e16 t) V/m B⃗ = Bo⃗ sin(2πλz + 5.91e16 t) Tesla o can you explain the formula what is n, c and omega?

**Algebra**

6964.4

**Physics**

how is you process?

**Physics**

contact me ulisesvzv @ gmail . com i have the half of answers

**physics**

A coil consists of N=105 turns of wire wrapped uniformly around a plastic torus. The inside radius of the torus is r0=0.12 m and the outer radius is r1=0.14 m. Thus, each winding has a diameter d=0.02 m. What is the self-inductance (in H) of this coil? Work in the ...

**physics**

thanks, do you have the c?

**physics**

Consider a circuit with an RL series with L=0.09 H and R=0.05 Ohm. At t=0 the circuit is connected to a battery which provides V0=12 V. (a)How long does it take to the current to equal a fraction 0.95 of the steady state current? (b) What is the energy stored (in Joules) in ...

**physics**

Consider the process of charging a parallel plate capacitor with circular plates of radius R=5 cm separated by a distance d=0.2 cm. At some time t1, the capacitor is being charged with a current I=0.075 A. Consider a point P on the plane which is equally distant from the two ...

**physics**

i have the answer, thanks :)

**physics**

Compare the total magnetic energy in two solenoids, each with N turns, area A, and current I, but length x and 2x. Denote Ux the total magnetic energy in the solenoid with length x, and U2x the one in the solenoid with length 2x. What is U2x/Ux?

**Physics**

a and d please

**Physics**

i got it, is the negative :)

**Physics**

C) i3 please, i3 isnt same to i2

**physics**

i need only the c1

**math**

1248

**science**

dddddddddd

**Math**

2.48>2.4 1>2.463

**math**

5,128,000

**chemistry**

2. Baking soda is sodium bicarbonate (NaHCO3). When you heat baking soda, it breaks down into sodium carbonate powder (Na2CO3), water vapor, and carbon dioxide. The enthalpy of this reaction is 129 kJ. Write a correct thermochemical equation for this reaction, explain how you ...

**science**

A. 1.36 m/s B. 0.06 m/s C. 8 m/s D. 4.5 m/s

**Math**

You guys suck

**physics**

if a steel flagpole get 5.1 mm taller when temperature increase by 5.0 degree celsius approximately how tall is the flagpole?

**Chemistry**

How do I figure out how to balance 1 mole of carbonic acid with 1 mole potassium hydroxide? And balance a chemical reaction of sodium bicarbionate with hydrochloride acid?

**physics**

a cyclist must travel 1500 km . how many days will the trip take if the cyclist travels 8 h/day at an average speed of 25 of 25 km/h ?

**economics**

For example the productive needs of the firm would be to set (Marginal Revenue = Marginal Costs (MR = MC) and create excess profits for the firm. However, as far as what is in the best interests of society it might be Price or (Average Revenue) = MC. Give the answers of both ...

**economics**

How do minimum wages affect equilibrium price?

**maths methods**

Find the angle of depression from top of a 500 m long chairlift with a vertical height of100 m

**physics**

1. The best leaper in the animal kingdom is the puma, which can jump to a height of 12 ft when leaving the ground at an angle of 45°. With what speed, in SI units, must the animal leave the ground to reach that height?

**math**

Ddtfyyfy

**math**

is the realtion a function? explain (1,1), (2,1), (3,1), (4,1)