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Stephen

Questions (140)

Find the angle of elevation of the top of a flag staff which is 31.9m high from a point 55m away from the ground level
1. 1 answer
2. 38 views
A surveyor is interested in determining the height of a tree. The angle of elevation of the top of the tree is 42°. The
1. 1 answer
2. 51 views
From the top of a building 50m high. The angle of depression of a car is 55°. Calculate the distance of a car from the foot of
1. 1 answer
2. 37 views
Make R the subject of the formula in Πr2
1. 2 answers
2. 98 views
Write a letter to your friend telling him or her about three things you like in about school
1. 1 answer
2. 217 views
List 10 subjects related to Home Economics
1. 7 answers
2. 1,198 views
In 3 to 5 sentences identify and explain words in the letter that create a negative tone. Support your answer with details from
1. 0 answers
2. 154 views
There are 40 pupils in a class, 30 of them study biology, 22 study Physics and 21 study chemistry. 15 study Physics and biology,
1. 1 answer
2. 194 views
What is the specific gravity of alcohol having a density of 0.79g/ml
1. 1 answer
2. 120 views
Sample of a speech delivered by a senior prefect of your school during speech and prize-giving day
1. 0 answers
2. 414 views
Define weight
1. 1 answer
2. 140 views
A piece of stone weighs 120g it was put into a measuring cylinder containing water,the water level rose from 135cm3 mark to the
1. 2 answers
2. 257 views
A liquid has a relative density of 5.22 calculate the density.
1. 3 answers
2. 245 views
An empty relative density bottle weigh 15g.It weighs 165kg when filled with a liquid and 175g when filled with water. Calculate
1. 0 answers
2. 261 views
Sodium chloride is soluble while iodine is slightly soluble. Explain what would happen if a mixture of the two is dissolved and
1. 1 answer
2. 301 views
In triangle ABC,A=54.2°,B=71.8°,a=12.4cm,find b
1. 4 answers
2. 479 views
The bag has 5 pink marbles and 2 Green Marbles and 4 yellow marbles what is the probability of not drawing a pink marble
1. 1 answer
2. 189 views
A plane ticket costs c dollars for an adult and p dollars for a child. Find an expression that represents the total cost for 3
1. 1 answer
2. 384 views
A vehicle starts from rest and in 30s reaches a speed of 20m/s. Thereafter the speed remains steady for 15s and decreases
1. 1 answer
2. 570 views
Two forces 5 newton and 4 newton are inclined to each other at 30° find the resultant and unknown angle
1. 0 answers
2. 252 views
Cynthia Besch wants to buy a rug for a room that is 23 ft wide and 29 ft long. She wants to leave a uniform strip of floor
1. 2 answers
2. 2,924 views
Calcium carbonate of mass 10g was heated until there was no further changeA. Write an equation for the reaction B. Calculate the
1. 1 answer
2. 1,408 views
If X is partly costant and partly varies with y, when y=40, X=150, and when y=54,x=192. find x when y=73
1. 1 answer
2. 451 views
A plane wave has an equation y=25 sin(120t - 4x), find wavelength in meters,frequency,period,velocity and amplitude.
1. 2 answers
2. 2,864 views
A fair tetrahedral die (with face 1,2,3 and 4)and a fair coin are tosses togetherConstruct a table of sample space of a random
1. 5 answers
2. 2,422 views
A ball of mass 0.3kg, moving at a velocity of 20ms-1 is suddenly hit by a force of 5N for a time of 0.03 sec. find its new
1. 1 answer
2. 950 views
A Uniform beam 6.0 metre long and weighing 4kg rest on supports at p and q placed left and right 1.0 metre from each end of the
1. 1 answer
2. 1,049 views
Shows an equilateral triangle with the length of its sides given in terms of a and b.4a cm and 3b cm.(a+b+c)cm.
1. 3 answers
2. 2,032 views
Three point charges are placed on the x-y plane as follows: Q1=-1.2nC at ( 3,4)cm, Q2=2.3nC at (0,0)cm and Q3=-3.7nC at (5,0)cm.
1. 2 answers
2. 1,783 views
What will happen if ammonium chloride solution is used to standardize the potassium tetraoxomangate(vii)solution?
1. 1 answer
2. 1,010 views
Solve :| x | - 5 > 6
1. 1 answer
2. 294 views
Hello, I would greatly appreciate any help that I can have with the following calculus question below. It has to do with
1. 6 answers
2. 814 views
A sphere of radius r =5cm and volume charge density ρ=14μC/m^3 spins at ω=200rad/s. What is the magnetic field at the center
1. 1 answer
2. 816 views
peer pressure destroys character yes or no?.
1. 4 answers
2. 1,484 views
Students measure the velocity of a car as it races along a track in a clockwise direction. Their measurements are detailed
1. 1 answer
2. 526 views
The Question: A particle moves along the X-axis so that at time t > or equal to 0 its position is given by x(t) = cos(√t).
1. 4 answers
2. 4,591 views
The fence around Wayne Manor (a rectangular plot of land) is going to be replaced. No fence will be required for the side lying
1. 3 answers
2. 2,594 views
How many drop (1drop=0.05ml) of 0.20M potassium iodide must we add to 0.010M Pb(NO3)2 to get precipitation of lead iodide to
1. 0 answers
2. 577 views
Long_short,round_square,good_broken,painted_plaine. What are they.
1. 1 answer
2. 316 views
I'm having Sig fig troubles. What would 0.98*2040 be using Sig fig rules???
1. 0 answers
2. 456 views
if V(r)=4/3 pir^(3) find (v2r)/(vr)
1. 1 answer
2. 415 views
Let K(x)= (sin(3x-7)) / (e^x-2)(I'm sorry if it is not clear here, but the denominator in K(x) has the natural number, e, to the
1. 1 answer
2. 514 views
Is the word "and" still considered a coordinating conjunction if it is being used in a list rather than to connect two
1. 3 answers
2. 988 views
Just out of curiosity, is it okay to use the phrase "and so" in a sentence? Like "Johnathan knew that he had to help the boy
1. 3 answers
2. 651 views
Context: The function v(t) represents the velocity of a particle moving along a horizontal line at any time, t, greater than or
1. 3 answers
2. 1,418 views
What effect will dissolving larger amounts of salt in a beaker of water have on the concentration and conductivity of the
1. 5 answers
2. 2,126 views
How does the boiling point of ethane (CH3CH3) compare with that of ethanol (CH3CH2OH)?1. The boiling point of ethane is higher
1. 3 answers
2. 3,975 views
A hiker started to climb up the hill at 6:00 am and either kept climbing up or rested at some place(s). He reached the top at
1. 4 answers
2. 1,953 views
The question goes as follows:Two trains are moving toward each other at speeds 17 mph and 43 mph. How far apart are they 1
1. 3 answers
2. 1,916 views
Point $G$ is the midpoint of median $\overline{XM}$ of $\triangle XYZ$. Point $H$ is the midpoint of $\overline{XY}$, and point
1. 1 answer
2. 714 views
Altitudes $\overline{XD}$ and $\overline{YE}$ of acute triangle $\triangle XYZ$ intersect at point $H$. If the altitudes
1. 12 answers
2. 4,487 views
Why did the Spanish and French start fighting?Question from Social Studies weekly week 8 for 4th graders.
1. 7 answers
2. 1,124 views
Change these fractions to twentieths and then arrange them in order of size, smallest first.7/20 2/5 3/4 7/10
1. 6 answers
2. 4,228 views
Simplify.-x^3(1-x^2)^-1/2 -2x(1-x^2)^1/2 ------------------------------- x Do I first start by getting rid of the negative
1. 1 answer
2. 427 views
Factor by removing the common factor with the lesser exponent2x(x-5)^-3 -4x^2(x-5)^-4 I don't really know how to do this. The
1. 2 answers
2. 603 views
t^2/�ã(t^2+1) - �ã(t^2+1)------------------------- t^2 Is the final answer -1/t^2 sqrt(t^2+1)
1. 2 answers
2. 402 views
Simplify5^-1/2 * 5x^5/2 (5x)^-3/2 My final answer was x/sqrt5
1. 4 answers
2. 616 views
Solve the complex fraction((t^2/sqrt t^2+1)-sqrt t^2+1))/t^2 Is the LCD to multiply by sqrt t^2+1????? Please help!
1. 1 answer
2. 471 views
5^-1/2 x 5x^5/2(5x)^-3/2=1/sqrt5 x sqrt5x^5 x 1/sqrt5x^3= ??? I need to simplify and I need help understanding what the next
1. 4 answers
2. 505 views
Rationalize numerator.((sqrt7)-3/4)(sqrt7+3/sqrt7+3) I got that the answer is 7-9/4sqrt7+12= -2/4sqrt7+12
1. 1 answer
2. 406 views
BH Holding Inc. is considering undertaking a capital project, costing $8 million today. in addition, the project will be
1. 0 answers
2. 607 views
A football match between United and City is watched by 24 000 spectators.Of the 24 000 spectators, 14 112 support United and
1. 5 answers
2. 585 views
In a sale of electrical equipment, the price of all goods is reduced by .Work out the sale price of the following. a A DVD
1. 7 answers
2. 656 views
Ranee keeps £360 in a savings account for a year. At the end of the year she gets £13.50 in interest.Work out the interest
1. 5 answers
2. 396 views
how many molecules of N2 could fit in a 2.00L soda bottle at 23C and 755mmHg
1. 1 answer
2. 1,864 views
Pain says she should get $3 discount on the price of each shirt and a $3 discount on the price of each pair of jeans. Part 1
1. 3 answers
2. 867 views
The number 2 is chosen to begin a ladder diagram to find the prime factorization of 66. What other numbers could have been used
1. 8 answers
2. 1,314 views
If there is a grid and you are going to draw three different rectangles so that each has an area of 12 square units and they all
1. 1 answer
2. 1,080 views
Solve using the annihilator method Y"-8y'+20y=5xe^(4x) sin (2x)
1. 0 answers
2. 545 views
what part of the carbon process is responsible for the release of carbon at a p[power plantcombustion photosynthesis digestion
1. 3 answers
2. 931 views
a boy notices a special needs student sitting by himself during recess. How can he get the student involved in a meaningful way?
1. 2 answers
2. 487 views
What type of a bond is a metal cation likely to form?
1. 0 answers
2. 465 views
How did the discovery of neutrons change the atomic model?
1. 2 answers
2. 1,057 views
Use a sum-to-product formula to rewrite cos5w+cos2w as a product.
1. 1 answer
2. 743 views
I need help with debugDebug06-02 // Program lets user input scores on four tests // Average is computed and letter grade is
1. 1 answer
2. 1,534 views
At which point is more silt in the water in the mountains or on flatland why
1. 8 answers
2. 1,685 views
Critically discuss 5 ways in which the environment problems impacts on the community.
1. 1 answer
2. 519 views
If you add 100 g of salt to 5 Kg of cooking water, how will it effect the boiling point? (molar mass of NaCl 58.5 g,
1. 1 answer
2. 457 views
Given Zn(NO3)2 + (NH4)2S = ZnS + 2NH4NO3 (molar mass of Zn(NO3)2 189 g, molar mass of (NH4)2S 68 g), what is the molarity of a
1. 1 answer
2. 1,004 views
How many Liters of a 5.00 M Zn(NO3)2 would be needed to react with 200 g of (NH4)2S?
1. 1 answer
2. 333 views
1. The curve y=10/2x+1 -2 intersects the x-axis at A. The tangent to the curve at A intersects the y-axis at C.(i) Show that the
1. 1 answer
2. 2,846 views
How do i do them? :l7. At 2:00 P.M., the angle between the hour and minute hands on a clock is 60° (approximately 1.05
1. 1 answer
2. 644 views
14) Given the following vectors, find the magnitude and direction:• A = 47 m and the angle is 0° • B = 62 m and the angle
1. 1 answer
2. 482 views
I have been knocking around this question for what seems to be an eternity. We have not gotten that far in this class so this is
1. 1 answer
2. 400 views
25mL of tartaric acid solution is titrated against 31mL of NH4OH. What is the normality of the NH4OH? Please explain how to work
1. 1 answer
2. 538 views
what is the result of using 75g of dihydronoxybutanedioric acid in one liter of H2O in a titration?I do not have a answer.
1. 3 answers
2. 1,108 views
25 milliliters of tartaric acid solution is titrated against 31 milliliters of NH4OH. What is the normality of the NH4OH?
1. 1 answer
2. 493 views
A perfectly cylindrical container standing upright with a top and bottom(an oil drum or coke can for example) of area A has an
1. 0 answers
2. 614 views
A 650N man jumps out of a window into a fire net 8m below. The net stretches 1.5m before bringing the man to rest and tossing
1. 1 answer
2. 644 views
y = √3x + 2 cos(x), 0 ≤ x < 2πFind a derivative y'.
1. 0 answers
2. 384 views
The expression log(x^n/ radical y)is equivalent to1. n log x - 1/2 log y 2. n log x- 2 log y 3. log (nx) - log (1/2y) 4. log
1. 2 answers
2. 3,151 views
What is the answer to: The plane was purchased new in 2006; therefore, x = 0 represents the year 2006. X - axis (horizontal)=
1. 1 answer
2. 487 views
Find the amount of solute deposit when 200 cm 3 of the solution is cooled from 55oc to40oc.
1. 1 answer
2. 538 views
A horizontal force of 234 N causes a 350 N object to accelerate across a horizontal floor. if the coefficient of friction is
1. 1 answer
2. 447 views
A car has a mass of 1.34 × 10^3 kg.If the force acting on the car is 6.46 × 10^3 N to the east, what is the car’s
1. 0 answers
2. 397 views
I am a number between 0.23 and 0.31. I have 3 digits. All of my numbers are the same. What number am I?
1. 2 answers
2. 359 views
I am a number between 0.23 and 0.31. I have 3 digits. All of my numbers are the same. What number am I?
1. 0 answers
2. 295 views
A flowerpot falls from a window sill 37.6 m above the sidewalk.?A) What is the velocity of the flowerpot when it strikes the
1. 2 answers
2. 1,247 views
A) What is the velocity of the flowerpot when it strikes the ground? The acceleration of gravity is 9.81 m/s2 ?B) How much time
1. 2 answers
2. 708 views
what is the french of I love you?
1. 2 answers
2. 486 views

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