Questions Asked on
July 27, 2019

math, probability
Problem 1. Determining the type of a lightbulb. The lifetime of a typeA bulb is exponentially distributed with parameter 𝜆 . The lifetime of a typeB bulb is exponentially distributed with parameter 𝜇 , where 𝜇>𝜆>0 . You have a box full of
asked by diogenes 
English
Write an essay on Nigeria my country
asked by Hannatu 
ASVAB Arithmetic
In Tim's last 5 games here's the number of threepoint field goals scored per game. 9 6 0 9 3 How many threepoint field goals would Tim have to kick in the next game to bring his average (arithmetic mean) to six points per game? I just need to be walked
asked by Nea 
Math
Thrice my number minus 6 is equal 66.What is my number ?
asked by Aliyah 
Trigonometry
A boat sails due north from the port 70 km, then 30 km east and then 60 km north. How far is the boat from port?
asked by Hannah 
science
an aluminium cube has a volume of 800cm 3^. If it is total immersed in water, calculate the upthrust acting on it
asked by wardah 
mathematics
prove that sin x/10 + sin 13x/10 =1/2
asked by begha terkula 
Math
Differentiate x^2+y^3=27xy
asked by Wise 
math
an urn contains 40 red chips and sixty white chips. six chips are drawn out and discarded, and a seventh is drawn. what is the probability that the seventh chip is red?
asked by aLP 
physics
A heat transfer of 9.0*105J is required convert a block of ice at 20C to water at 15C. What was the mass of the block of ice?
asked by Temi 
Trigonometry
cos2β if sinβ = 4/5 and β is in the first quadrant Im having a hard time undersatanding this.
asked by Hannah 
Math
A children park 350 m long and 200 m wide its is surrounded by a path way of uniform width.supposed the total area of the park and the pathway is 74,464m squered.how wide is the pathway?
asked by Bernadette 
Maths
factorise the following (1). 5ax  5bx  a+b (2). m2  n2  mq  nq?
asked by Robotic 
Maths
r=.10,m=1.6*10^27,f=2.5*10^12, use formula f=mrww,calculate w?
asked by Abhishek Sharma 
chemistry
A voltaic cell consists of a standard hydrogen electrode in one halfcell and a Cu/Cu2+ halfcell. Calculate [Cu2+] when E cell is 0.22 V.
asked by chemfiend 
Math
Two squares are enclosed in a large square as shown. The area of the smallest square is 5cm^2, and the area of the middle square is 20cm^. Determine the area and perimeter of the shaded region.
asked by Anonymous 
Physics
A conductor has a diameter of 1.00mm and length 2.00m.if the resistance of the material is 0.1 ohms,it's resistivity is A.3.93 ×10^6 B.2.55 ×10^2 C.3.93 ×10^8 D.2.25×10^2?
asked by Robotic 
Trigonometry
tan2θ if tanθ = 5 I really having a hard time understanding this.
asked by Hannah 
physics
a cube of side of 10cm and mass 0.5kg floats in a liquid without only 0.2 of its height above the liquid surface. what is the relative density of the liquid.
asked by Aguson 
Math
Solve the following l.p.p using simplex method Maximum z=10x+20y Subject to 3x+5y
asked by Akansha 
English
Instructions You read expensively ahead a health lifestyle in the short course you attended write the instructions to be followed by your community to Benefict from practicing a healthy lifestyle
asked by Linah Linah 
art and design
2 paragraph discussion post on hybridity, diversification, and transnational/diasporic cultures
asked by zenah 
maths
Ade was 4 times as old as his son 8 years ago. Ade will be twice as old as his son in 8 years time. What are their present ages?
asked by Andrew 
Electromagnetism
A toroid is a solenoid in the shape of a donut. The magnetic field inside the toroid is B=μ0NI/(2πR). Suppose that a toroidal electromagnet with 146 loops uses a coil 1.2 m in diameter made from square copper wire. The power supply produces 120 V at a
asked by Michael 
Math
A=cos2x+isin2x ,B=cos2y+sin2y hence prove that AB/A+B=itan(x+y).
asked by Saloni 
Electromagnetism
A 550turn solenoid is 15 cm long. The current in it is 33 A. A 3.0cmlong straight wire cuts through the center of the solenoid, along a diameter. This wire carries a 22A current downward (and is connected by other wires that don’t concern us). What
asked by Michael