Questions Asked onAugust 2, 2020

1. Science

56g of N2 reacts with 30g of H2 to form NH3.Calculate the number of moles of NH3 formed.

2. maths

ama is 3 years older than karla and daniel is 2 years older than ama the add their ages is 32, how old is each child

3. Mathematics

The denominator of a fraction is one more than thrice the numerator.the difference is between the reciprocal of the fraction and the fraction is 15/4.find the fraction.

4. English

As the senior prefect of your school,write a speech you would give to fresh student telling them at least ,three things that can make their stay in the school sucerssful

5. mathematics

John receives an invoice for the purchase of 40 batteries for 𝑅𝑀 8,440 on 31 March 2019. Trade discounts are 5 % and 3 % and the cash discount terms are 8/10, 5/30, 𝑛/60. He pays the invoice on 19 April 2019. He plans to sell the batteries by

6. algebra

Geometry Connection The similar triangles below have congruent angles and proportional sides. Express z in terms of x and y.

7. Science

In a simple the energy input is 120j if the efficiency of the machine is 80% calculate the energy output

8. Math

The probability that a student at a certain college is male is 0.498 . The probability that a student at that college has a job off campus is 0.712. The probability that a student at the college is male and has a job off campus is 0.315. Find the following

9. Math

Lyme disease is the leading tick-borne disease in the United States and Europe. Diagnosis is difficult and is aided by a test that detects particular antibodies in the blood. A study of 1000 people at risk for Lyme disease showed the results of the blood

10. mathematics

𝑅𝑀 600 is deposited every three months for two years and nine months at 8 % compounded quarterly. i. Find the future value of this annuity at the end of investment period. ii. Calculate the interest earned

11. mathematics

A retailer buys a set of plates for 𝑅𝑀 320. Operating expenses incurred during the sale of these plates are 8 % of the cost price. If the retailer makes a 25 % net profit based on selling price, find the: i. selling price ii. gross profit iii. net

12. English

under line the noun and its type :-1)the dog is a very faithful animal

13. Math

Convert 1/4” to thousanths

14. algebra

As a fund raiser, your class is making and selling holiday greeting cards. You spend \$750 on supplies. It will cost \$4.25 per box to print, and you will sell the cards at \$10 per box. How many boxes must you sell to show a profit?

15. Science

The very large increase in allergies over the last thirty years is due to the great success of immunizations administered over this time period. Since immunizations have nearly eliminated life-threatening diseases such as polio, the human immune system

16. Civics

How many levels of government are there in Australia? What are they? What do they do?

17. Math

Find the area between y=x^2 and y=1 using Calculus.

18. mathematics

A washing machine selling for 𝑅𝑀 600 cash was purchased through an instalment plan in which a 15 % down payment was made. The buyer had to make 25 weekly payments of 𝑅𝑀 22 each to settle the balance. Calculate the: i. instalment price ii. total

19. math

In a certain population, the probability that a woman has red hair is 1/4. If a woman has red hair, the probability of her having freckles is 3/4. If she does not have red hair, the probability of her having freckles is 1/16 . Find the following