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Posts by dolly

Total # Posts: 41

Mathmatics of mensuration
The area of a rhombus is 148.8 cm2.if one of its diagonals is 19.2cm.find the length of the other diagonal.

math
Value oftan76.25degree

math
∫_0^(π/2)▒〖sin^6⁡x cosx dx〗

science
Johnny stacked 200 cans, each weighing 5 N, on shelves 1 meter high in only 100 seconds. How much power did he use for the task?

Math
A boat traveling downstream can travel 10 miles in 1/2 hour. The same distance traveling upstream will take 2 hours. What is the speed of the boat and the rate of the current?

maths
ok

maths
the following observation having been air anged in asensing order if the motion of the data is 63. find the vakue of x. 29,32,48,50,x,x+2,72,78,84,95.

maths
in the q . their is mistake ok

maths
the following observation have been air anged in asending order. if the motion of the data is 63. find the value of x. 29,32,48,50,x+2,72,78,84,95,x

mathematic
find the value of k if x equal 2 and y equal 1 is a solution of the eq.2x +3y equal k

Math
what are the values of the function y = -2x - 4 for x= 0,1,2 and 3? (1 point) A: 0,-6,-8,-10 B: -4,-6,-8,-10 C: -4,-2,0,2 D: 0,6,8,10 Please help me !!!! I'm doing a big math quiz and I can't figure this one out! I got all the other ones right can you please help me...

Algebra 2
write an equation to solve each problem There is only one freshman in the cast of the high school musical. There are 6 sophomore and 11 juniors. One third of the cast are seniors. How may seniors are in the musical? *Please show me the work on how to do it

Calculus Maxima/Minima
thanks mike

Physical Science
Modern oil tankers weigh over a half-million tons and have lengths of up to one-fourth mile. Such massive ships require a distance of 4.8 km (about 3.0 mi) and a time of 22 min to come to a stop from a top speed of 26 km/h. (a) What is the magnitude of such a ship's ...

economics
The Law of Large Numbers explains why it is unlikely that the actuarially fair premium for an insurance policy will be the same for a small start-up firm as it will be for a large employer such as a university. True or False

Algebra 2
Solve by completing the square. 1.x^2+x+c=0 2. x^2+bx+c=0

Physics
If a car travelling 48km per hour and is 10 metres behind a car travelling 35km per hour, how much time before it catches up?

Biology
For example you skeletal system is voluntary because you think about it when you move or stretch.but your cardiac system is involuntary because you don't have to think about it. It will be really hard for you to decide how much blood to pump. Hope this helps.

Algebra 2
Tim paddled his kayak 12km upstream against a 3km/h current and back again in 5h and 20 min. A) what was the speed of his kayak? B) how far could he have gone if there had been no current?

English
We are reading lord of the flie and I need some opinions. My question is do you think that Ralph should be counted guilty and set on trial for Simon's death? Why or why not?

life orientation
five ways in which xenophobia problem impact on the community

chemistry
In a reaction between methane, CH4+ and chlorine, Cl2+ four products can form: CH3Cl, CH2Cl2 + CHCl3+ and CCl4. In a particular instance, 20.8 g of CH4 were allowed to react with excess Cl2 and gave 5.0 g CH3Cl, 25.5 g CH2Cl2+ and 59.0 g CHCl3+ all the CH4 reacted. a) How many...

chemistry
In an experiment a student allowed benzene C6H6+ TO REACT WITH EXCESS BROMINE BR2+ In an attempt to prepare bromobenzene C6H5Br. This reaction also produced as a by-product, dibromobenzene, C6H4Br2+ On the basis of the equation. C6H6 + Br2 -> c6h5Br + H Br a) What is the ...

chemistry
In an experiment a student allowed benzene C6H6+ TO REACT WITH EXCESS BROMINE BR2+ In an attempt to prepare bromobenzene C6H5Br. This reaction also produced as a by-product, dibromobenzene, C6H4Br2+ On the basis of the equation. What is the maximum amount of C6H5Br that the ...

science
conclusion

Maphokwane high school
Discuss 5 ways in which the substance abuse human or environmental problem impacts on the community.

Maphokwane high school
Discuss 5 ways in which the substance abuse human or environmental problem impacts on the community.

geometry
email me at: winkletanya(at)y*hoo(dot) com but all together

geometry
hey im in connections a too. and wanted to know if you had the answers to the geometry b unit 1 test similarity unit test one of the questions look like this: 1. The Sears Tower in Chicago is 1450 feet high. A model of the tower is 24 inches tall. What is the ratio of the ...

chemistry
what mass of zinc chloride, zncl2 is required to prepare 5.00l of a 0.450 molar solution

Statistics
Using the 68-95-99.7 Rule. Find the percentage of ACT score within 9.6 of the mean of 21.1?

Math
solve for the conic in the equation y^2-6y+12x+33=0

physics
A car travels at a speed of 25 m/s on a flat stretch of road. The driver must maintain pressure on the accelerator to keep the car moving at this speed. What is the net work done on the car over a distance of 250 m?

8th grade math
what is the total cost is the number of cans times $.70.

pc basic
A CD-RW is a type of

Travel Agent
A ______ is the most commonly used input device.

1st grade
How much wood could a wood chuck chuck if a wood chuck could chuck would

math
write a number pattern for 6 starfish if each had 5 arms

economic
why it is incorrect to advertise up to the point that the last dollar of advertising generates another dollar of sales? What is the correct rule for the marginal advertising dollar ??

8 th Grade
what is a bear?

P.E
Whats A planet

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