Monday

July 28, 2014

July 28, 2014

Total # Posts: 96

**algebra**

Twice the first number is eleven more than the sum of the other two numbers. The sum of twice the first number and three times the third number is one more than the second number. The second number is equal to the sum of the first number and the third number. Find the three nu...

**math**

What is the area of a parallelogram where the base= 3x+1 and the height= 9. I know the area is base*height but does that mean you distribute the 9?

**biochemistry**

The following data describe the binding of oxygen to human myoglobin at 37oC. P02 (mm Hg) = 0.5 1 2 3 4 Theta = .161 .277 .434 .535 .605 P02 (mm Hg) = 6 8 12 20 Theta = .697 .754 .821 .885 From these data, estimate: a). P50 b) the fraction saturation of myoglobin at 30 mm, the...

**8th Grade Language Arts**

might be

**physics**

Car A negotiates a curve of 60 m radius at a constant speed of 50 km/h. When A passes the position shown, car B is 30 m from the intersection and is accelerating south toward the intersection at the rate of 1.5 m/s2. Determine the acceleration which A appears to have when obse...

**Life orientation**

I want to know all 5 ways in which the human or environment Nutrition impacts on the community.

**Math**

Calculate the height of a triangle with base equal to 142cm and area equal to 62,48cm

**Math**

Calculate the area of a triangle with base equal to 18cm and height equal to 9cn

**Math**

Calculate the side lenght of square with area 25m

**math**

Calculate the breadth of a rectangle with lenght 120mm and area 960m

**math**

Calculate the breadth of a rectangle with lenght 120mm and area 960m

**math**

Calculate the lenght of a rectangle with area 350cm and breadth 50mm.

**life orientation**

1, Identify five practice that are in contravention of the basic conditions of employment ACT. 2,What according to the basic conditions of employment ACT applies with regard to the contravention that you have identify

**life orientation**

1, Identify five practice that are in contravention of the basic conditions of employment ACT. 2,What according to the basic conditions of employment ACT applies with regard to the contravention that you have identify

**Calculus**

F(x) = (x^3 - x + 1)^4 f'(x)=

**chemistry**

What's the equation written in a sentence for nh4no3(s)=n2o(g)+2h2o(g)

**algebra**

a piece of wire measuring 20 feet is attached to a telephone pole as a guy wire. the distance along the ground from the bottom of the pole to the end of the wire is 4 feet greater than the height where the wire is attached to the pole. how far up the pole does the guy wire reach?

**Calculus**

g(x)=5x^2+3x+2 Compose g(g) and find domain

**Business English**

Which of the following sentences is the refusal implied rather than directly stated

**math**

40

**math**

Find n if S(sub n) is approximately 15,408.15.

**social health**

5 ways in which human problem impacts on community.and the relavent sources to support claims.

**life orientation**

identify and describe one environmental problem that causes ill health,accidents,crises,and disasters within south africa

**Life orientation**

how can i answer a question that i do not even know the answer

**Pre-Calc**

Fill in the blank; •In the process of polynomial division (Divisor)(Quotient)+_______=_______ •When a polynomial function f is divided by x-c, the remainder is _______. •If a function f, whose domain is all real numbers, is even and if 4 is a zero of f, then ___...

**Pre-Calc**

Oh yes the first one was a typo it was supposed to be X^2+y^2+ax+by+c=0

**Pre-Calc**

True or False: •Every equation of the form X^2+y^2+ax+by+c=c •The radius of the circle x^2+y^2=9 is 3 •The center of the circle (X+3)^2+(y-2)^2=13 is (3,-2)

**Pre-Cal**

Find the distance d(P1,P2) between the points P1 and P2. P1= (-2,1); P2= (0,0) P1= (-1,1); P2= (2,2) P1= (-1,0); P2= (2,4) P1= (2,-3); P2= (4,2)

**pre-calc**

True or false: Perpendicular lines have slopes that are reciprocals of one another.

**pre-calc**

Two nonvertical lines have slopes m1 and m2, respectively. The lines are parallel if ___ and the ___ are unequal; the lines are perpendicular if ___.

**Math ( Word Problem )**

i lke math.

**CHEMISTRY**

A geologist discovered a new rock which he suspected contained an oxide of an element called mysterium. He gave thr ock to a chemist who ground it up and heated a sample with carbon at a high temperature. No metal was produced in this experiment. 1.Why did the chemist grind u...

**Chemistry !**

A geologist discovered a new rock which he suspected contained an oxide of an element called mysterium. He gave thr ock to a chemist who ground it up and heated a sample with carbon at a high temperature. No metal was produced in this experiment. 1.Why did the chemist grind up...

**MATH HELP**

Two functions g and h are defined as : g:x--> 2x+3/x-4 h:x --> 1/x Write expressions for : a) hg(x) b) g inverse 1(x)

**MATH HELP**

Two functions g and h are defined as : g:x--> 2x+3/x-4 h:x --> 1/x Write expressions for : a) hg(x)

**MATH**

Two functions g and h are defined as : g:x--> 2x+3/x-4 h:x --> 1/x Write expressions for : a) hg(x) b) g inverse 1(x)

**MATH**

MR. BOB PURSLEY HELP ?/

**MATH**

Two functions g and h are defined as : g:x--> 2x+3/x-4 h:x --> 1/x Write expressions for : a) hg(x) b) g inverse 1(x)

**MATH !!**

still dont understand how to combine this . can u show me ?

**MATH !!**

how to combine ?? thats wat i have problem withh ??

**MATH !!**

Given that f:x -->3-x g:x --> x+2/x-5 derive the expression for gf(x)

**MATH**

Given that f:x -->3-x g:x --> x+2/x-5 derive the expression for gf(x)

**Englist**

QUICKLY AND THOROUGHLY N DAILY ?

**Englist**

easily

**MATH**

Two functions g and h are defined as : g:x--> 2x+3/x-4 h:x --> 1/x Write expressions for : a) hg(x) b) g inverse 1(x)

**MATH**

how do u get the 3 ?

**MATH**

The function f and g are defined by : f:x --> 3x+1 g:x --> 9-x Determine the expression for the function gf(x) .

**Physics HELPP !!**

The antireflecting coating works best if its refractive index is the square root of the refractive index of the lens inthe eye glasses. a) determine the refractive index of the lens that gives the best results

**Physics**

How to find refractive index ?

**Physics**

How to find refracticive index ?

**MATH **

Ok when your plotting a graph of Sin angle i against Sin angle r , which of those goes on the y axix and which goes on x axis??

**Physics**

Ok when your plotting a graph of Sin angle i against Sin angle r , which of those goes on the y axix ??

**Technical Drawing**

1. Construct a triangle with dimension 5cm, 6cm and 75 degrees. 2. Construct a triangle with two sides 5cm, 6cm and an included angle of 120 degrees.

**Physics**

How much energy would your body need to provide for the following : a)sweating and evaporation of 1kg of water from your skin. b)heat loss by radiation at the rate of 100 wats for 12 hours. (the specific latent heat of vaporisation of water is 2.3MJkg-1)

**Physics**

An Electricity account shows that a household has used 1400 units of electrical energy during a three month period. Calculate : a)the number of joules of energy used in this time. b)the average number of joulesof energy used perday . c)the average power consumption in watts. d...

**Physics**

drwls here it is : How much energy would your body need to provide for the following : a)sweating and evaporation of 1kg of water from your skin. b)heat loss by radiation at the rate of 100 wats for 12 hours. (the specific latent heat of vaporisation of water is 2.3MJkg-1)

**Physics**

Can someone plz answer my 2 previous question ???

**Biology**

ThankYou Sra (:

**Biology**

Wha advantage could the following traits be to the organism ? a) Larger leaves b)Green Leaves c) More seeds d) Brightly coloured flowers

**Physics**

An Electricity account shows that a household has used 1400 units of electrical energy during a three month period. Calculate : a)the number of joules of energy used in this time. b)the average number of joulesof energy used perday . c)the average power consumption in watts. d...

**Physics**

How much energy would your body need to provide for the following : a)sweating and evaporation of 1kg of water from your skin. b)heat loss by radiation at the rate of 100 wats for 12 hours. (the specific latent heat of vaporisation of water is 2.3MJkg-1)

**Geometry**

A science lab needs a right circular cylindrical container that holds 15 gallons of liquid & is 24in tall. A reference manual states that 231 cubic inches is equivalent to one gallon. What is the approximate radius, in inches, or the container?

**Maths**

Okk ! SO I am not completly suree about this : The No. of overtime worked = the overtime wage / overtime rate :) Someone Plz Clarify

**programming**

How to integrate / combine two different programs together ??? :/

**English**

:) Well !!

**English**

Second one ! [I think] :)

**Physics**

lOl okk thenn :)

**Physics**

:D Thank Yoouu !!

**Physics**

What provides the centripetal force : i)on the elctron orbiting the proton in a hydrogen atom ii)satellite orbiting the planet iii)on the child being whirled round in a chair on the end of a chain in the fairground ride ? Ayuada por favorr :)

**science**

I am guessing its Friction :)

**Physics**

Why is it 200v ??Is the formula used : m1v2+m2v2=(m1+m2)v ??? Confusedd

**Physics**

A cannon of mass 200kg, fires a cannonball with a mass of 10kg. The cannon ball leaves the barrel of the cannon with a velocity of 60 m/s. Using the law of conservation of momentum , explain what happens to the cannon when the cannon ball is fired. (Answer should include calcu...

**Computer**

How to write an algorithm to find the fibonacci series ??? Help:/

**physics**

thanx

**physics**

Two planes of the same mass collide head-on and becomes tangled so that they move on together. If the engines of both were stopped at the moment of impact and the speeds of the planes at impact were 120m/s and 200 m/s, find the joint velocity immediately after collision.

**physics**

A railway track travelling along a level at 9 m/s collides with, and becoms coupled to a stationary truck. Find the velocity of the coupled trucks immediately after the collision if the stationary truck has a mass which is : A ) equal to the mass of the moving truck B) twice ...

**Physics**

Vector ~A has a magnitude of 7 and points in the positive x-direction. Vector ~B has a magnitude of 21 and makes an angle of 30â—¦ with the positive x-axis. What is the magnitude of ~A âˆ’ ~B ?

**physics**

An engineer in a locomotive sees a car stuck on the track at a railroad crossing in front of the train. When the engineer first sees thecar, the locomotive is 310 m from the crossingand its speed is 10 m/s.If the engineerâ€™s reaction time is 0.39 s,what should...

**Physics**

A simplified model for an erythrocyte is a spherical capacitor with a positive inner surface of area A and a membrane of thickness b. Use potential difference of 98 mV across the membrane and a dielectric constant K = 5.0. If the capacitance of the membrane is C = 0.27 pF, wha...

**physics**

A rectangular piece of gold is 2.5 cm long and 2.6 cm wide. How deep is the piece when it displays a resistance of R = 1.39 μω for a current that flows along the depth-direction?

**physics**

A mass spectrometer as shown in the attached figure is used to separate isotopes. If the bean emerges with a speed of 363 km/s and the magnetic field in the mass selector is 1.4 T, what is the distance between the collectors for 235U+1 and 238U+1? The mass of 235U+1 is 235 u ...

**Physics**

Air will break down as a dielectric when subjected to applied fields in excess of 3 * 10^6 N/C. a parallel plate capacitor using air as a dielectric has a capacitance of 1.0nF and a separation b/t plates of 1.0micrometer. how much energy U was stored in this capacitor at the m...

**physics**

its 6v battery.

**physics**

The capacitor that powers the flash in a camera is charged using ^.0V battery. after that capacitor is charged, it is discharged through the flashbulb in just 1.0 microsec. with avg power output of 20 w. whats is the capacitance?

**physics**

A bicycle of mass 14.6 kg and a rider of mass 50kg generate a net force of 12N.How fast are they going after 2.0 seconds?

**college astronomy**

whats the effect and the cause of retrograde motion in earths sky on both inferior and superior planets?

**government**

what does double jeopardy and the 8th amendment have to do with capital punishment?

**chemistry**

how many grams of water at 0 degree C can be frozen into ice at 0 degree C if 55.0 kJ of heat is removed?

**chemistry**

if the concentration of NO3- in the water is uniformly 5 microMolar, how many moles of N are there per square meter?

**chemical oceanography**

i worked it out to equal 1 Liter. is that correct?

**chemical oceanography**

how would it be worked if you have 1 square centimeter instead of the 1 square meter?

**chemical oceanography**

do i need to square the 10 meters so that it is 100 meters?

**chemical oceanography**

How many liters of seawater are there under 1 meter square of sea surface if the water depth is 10 meters?

**algebraic expressions and the order of operations**

i need help with this math question....how will i be able to do this excersize; n+4, n+8, 3n,

**science**

When all parts of a circuit are composed of conducting materials, the circuit is said to be A. parallel C. open B. shorted D. closed the answer is d. closed

**the big idea of energy**

The big idea of energy transfer is the idea of a source of energy being changed into another form of energy such as light energy to heat energy. This effect happens in global warming were chemical energy is transfered into heat energy with a greenhouse effect. This effect also...

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