# Questions Asked onJuly 27, 2019

1. ## math, probability

Problem 1. Determining the type of a lightbulb. The lifetime of a type-A bulb is exponentially distributed with parameter 𝜆 . The lifetime of a type-B bulb is exponentially distributed with parameter 𝜇 , where 𝜇>𝜆>0 . You have a box full of

2. ## English

Write an essay on Nigeria my country

3. ## ASVAB Arithmetic

In Tim's last 5 games here's the number of three-point field goals scored per game. 9 6 0 9 3 How many three-point 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

4. ## Math

Thrice my number minus 6 is equal 66.What is my number ?

5. ## 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?

6. ## science

an aluminium cube has a volume of 800cm 3^. If it is total immersed in water, calculate the upthrust acting on it

7. ## mathematics

prove that sin x/10 + sin 13x/10 =-1/2

asked by begha terkula
8. ## Math

Differentiate x^2+y^3=27xy

9. ## 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?

10. ## 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?

11. ## Trigonometry

cos2β if sinβ = 4/5 and β is in the first quadrant Im having a hard time undersatanding this.

12. ## 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?

13. ## Maths

factorise the following (1). 5ax - 5bx - a+b (2). m2 - n2 - mq - nq?

14. ## Maths

r=.10,m=1.6*10^-27,f=2.5*10^-12, use formula f=mrww,calculate w?

asked by Abhishek Sharma
15. ## chemistry

A voltaic cell consists of a standard hydrogen electrode in one half-cell and a Cu/Cu2+ half-cell. Calculate [Cu2+] when E cell is 0.22 V.

16. ## 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.

17. ## 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?

18. ## Trigonometry

tan2θ if tanθ = 5 I really having a hard time understanding this.

19. ## 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.

20. ## Math

Solve the following l.p.p using simplex method Maximum z=10x+20y Subject to 3x+5y

21. ## 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
22. ## art and design

2 paragraph discussion post on hybridity, diversification, and transnational/diasporic cultures

23. ## 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?

24. ## 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