# Questions Asked onFebruary 9, 2020

1. ## Maths

In an examination,60 candidates passed science or maths.if 15 passed both subjects and 9 more passed maths than science, find the number of people who passed maths and science, probability that a candidate passed exactly one subject.

2. ## Math

An isosceles triangle ABC has its vertices on a circle. If AB=13cm,BC =13cm and AC=10cm, calculate:the height BM of the triangle. Calculate the radius of the circle, to the nearest whole cm

3. ## math

in a class of 50 students ,30 study biology and 25 study economics .15 study neither biology nor economics a.how many take both subjects? b.how many take only biology? c.Ho many take economics only?

4. ## maths

At a speedway, the yellow car completes a lap every 30 seconds and the blue car completes a a lap every 50 seconds. If the cars both start at the same place, how long will it take for the blue car to 'lap' the yellow car?

5. ## maths

At the local sports academy, everybody plays netball or tennis. Given that half the tennis players also play netball and one-third of the netballers also play tennis, what is the probability that a randomly chosen person at the academy plays both?

6. ## Algebra 2

Match each equation to the value of x that results in the equation containing division by 0. y= -4/x y=6x/x-2 y=2/3x+6 answers to choose from: x=0, x=3, x=-3, x=2, x=-2, x=1/2, x=-1/2

7. ## Geometry

A right prism has volume 3645 and bases that are regular hexagons with sides of length 9. Find the height of the prism.

8. ## Science

A person walks 10km north 20 km east and 10 south the resultant displacement is ?

9. ## science

If you shout into the Grand Canyon,your voice travels at the speed of sound(340 m/s) to the bottom of the canyon and back,and you hear and echo.How deep is the canyon at a spot where you can hear your echo 5.2 seconds after you shout.

10. ## math

A smokestack is 180 ft high. A guy wire must be fastened to the stack 30.0 ft from the top. The guy wire makes an angle of 37.0° with the ground. Find the length of the guy wire. Use significant figures. I did: 180ft - 30ft =150ft sin 37 = 150/x x=150/sin

11. ## Math

Answer the following prompt. A constellation is a group of stars that makes a recognizable pattern in the night sky. The stars are connected with imaginary lines to form shapes or patterns. Each constellation has a name. Conduct a safe search on the

12. ## Physics

What would happen to the total current if you added another resistor in parallel and kept the power supply at 15 V? Would it increase, decrease or stay the same ? Suppose you have a parallel circuit with a fixed voltage. When you add more resistors in

13. ## Physics

A battery, an ammeter and a variable resistor connected in series.A voltmeter is connected across fixed resisitor.The value of variable resistor is reduced.What would happen to ammeter and voltmeter reading?

14. ## Calculus

A swimmer wishes to swim directly across a river that has a current of 2.5m/s. He can swim 3.5m/s in a pool. Include a diagram. a. Calculate the heading that the swimmer must use in order to swim directly across a river relative to the bank. b. What is the

15. ## math

Find the values of sin θ, cos θ, and tan θ for the given right triangle (in the link below). Give the exact values. www.webassign.net/aufexc2/8-5-003.gif sin θ= cos θ= tan θ= my answer is c^2 = a^2 +b^2 c^2 = 5^2+12^2 c^2 = 169 c= √(169) c= 13 I

16. ## maths

A bag contains eight counters that are red, blue or yellow. A counter is selected from the bag, its colour noted and the counter replaced. If 100 counters were selected and 14 were red, 37 were blue and 49 were yellow, how many counters of each colour are

17. ## Chemistry

Howdy, I need suggestion on this question. You spotted a mixture of Ala, Arg, Asp, Glu, His, and Lys on an isoelectric focusing where the left and right sides have pH 2 and 13, respectively. After a while, all amino acids stop migration on the strip.

18. ## Physics

A mother rocket fired from the ground last year’s eve ejects 25% of its mass at the at the rate if so m/s in the first second of its flight. Find the initial acceleration of the mother rocket.

19. ## math

convert 2346 m to km and round off your answer to 2 decimal places

20. ## Physics

Explain me about potential dividers and potentiometers. Also the potentiometers used to compare cell e.m.f.s Don't give me links.Tell me in your words.

21. ## Chemistry

What would be the depth of 1 mol of M&Ms on the surface of the Earth?

22. ## social studies

describe two ways in which the schools curriculum prepares students for responsible parenting

23. ## Setswana

Fa nka falola marematlou ka dinaledi?

24. ## math

2+2=4-1=? slow maths?

25. ## English

Margot wishes for the end to come in Anne Frank (Act 2 Scene 1). What are some of her Internal motivation and external motivation?

26. ## math

A smokestack is 180 ft high. A guy wire must be fastened to the stack 30.0 ft from the top. The guy wire makes an angle of 37.0° with the ground. Find the length of the guy wire. Use significant figures. I did: 180ft - 30ft =150ft sin 37 = 150/x x=150/sin

27. ## maths

I don't have any issue of how to solve these problems, please help me teacher. 1.Log4^1/8=? 2.log100^0.001=? 3.log8^0.00625=?

asked by biko gwa.
28. ## math

Find the value of "a" if you knew the perimeter was 47 meters long. Here is the experssion 7a-2 49-2 my answer

29. ## English

I need someone to check my work What is the best paraphrase of the line "Full fathom five thy father lies'' A. your father is five fathems tall. B. your father has lied about his height. C.your father lies five fathoms under the sea. D. your father has

asked by no name
30. ## Science

Bill and Amy want to ride their bikes from their neighborhood to school which is 14.4 kilometers away.How much faster (in meters/second)is Amy's average speed for the entire trip?

31. ## Business Calculus

Solve the following linear programming problem. Restrict x ≥ 0 and y ≥ 0. Minimize g = 38x + 23y subject to the following. x + y ≥ 100 −x + y ≤ 20 −2x + 3y ≥ 30 (x, y) = g =

asked by Haris A Khan
32. ## Physics

A projectile is launched from a platform 20m high. It lands 10 m from the base of the platform. What was it’s launch speed?

33. ## Grammar

HELP ME I DONT KNOW WHAT IM DOING Grade Identifying Dos, PNs, or PAS Directions: Underline all subjects 1x, verbs 2x, and then circle the DO, PN or PA. "Feel free to mark LV or AV and bracket prep phrases. 1. The judges announced a set of rules. 2. The

34. ## physics

How do you find momentum immediately before collision?

35. ## English

how is irony used to make a social commentary about Victorian culture?

36. ## Math

asked by I need help
37. ## physics

Suzie (of mass 70 kg) is roller-blading down the sidewalk going 20 miles per hour. She notices a group of workers down the walkway who have unexpectedly blocked her path, and she makes a quick stop in 2.2 seconds. What is Suzie’s average acceleration? 1.

38. ## English

comare and contrast male and female roles in the scarlet letter i have been struggling with this for the past hour someone please help :(

39. ## science

How do I convert 5nano second to second?

40. ## social studies

How did ancient Sparta differ from Athens? A. The people of Sparta spoke Greek. B. The people of Sparta practiced a different religion. C. The government in Sparta was an oligarchy. D. Women in Sparta were considered citizens.

41. ## Poetry

In the poem "House Fear" (search it up), what is the beginning middle and end? Beginning: At night people return to their dark, lonely homes. Middle: They rattle the lock and the key to warn any intruders to get out so the they doesn't have to face them.

asked by ❄ Snowflake ❄
42. ## Chemistry

Hi I needed clarification with this multiple choice. I have my explanation with them Select two right answers describing the features of Ni-affinity chromatography. 1) Ni-affinity columns exploit the octahedral coordination. the metallic cations forms

43. ## social studies

Drag and drop each characteristic to the correct ancient society. Citizens had a role in deciding about how their society was governed. returned to the choices list. Citizens had a role in deciding how their society was governed. Citizens participated

44. ## physics

Momentum of car and passengers immediately before collision occurs? Mass of passenger + car= 1532 kg speed= 28 mph when collision occurs

45. ## Math

Using t=(1/k) ln (N/No), determine when at the growth rate of 1.24% per year, the worlds population of 6.16 billion in 2001 would grow to occupy the earth at a density of 1 person per square meter (1 person/m^2) of dry land. The earth has 1.31 x 10^14 m^2

46. ## Math

There are places where population densities approaching 1 person/m^2 already exist. A two story building in Delhi, India was found housing 518 people, a density of 1 person/ 1.5m^2. Calculate the floor area of this building.