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Shane

Questions (271)

What are the factors of 12?
1. 1 answer
2. 328 views
I need help with Maps and scaleThe question is : The actual Distance between two cities is 135.km and the map scale 100 km find
1. 1 answer
2. 663 views
A)A lighthouse emits a beam of light that rotates (counterclockwise from a birds-eye perspective) at a constant rate with one
1. 1 answer
2. 793 views
Calculate the solubility of the compoud PbI2 in a 0.0333 M solution of Mg(ClO4)2 using (1) activities and (2) molar
1. 1 answer
2. 1,206 views
Suppose the population of a colony of ants grows at the rate:P’(x) = 1 + 5/sqroot(t+1) If there are 250 ants after 120 hours,
1. 1 answer
2. 661 views
Suppose the annual revenue for a company between 2000 and 2005 is approximated by R(t)=18t^2+4t+3, where t=0 represents the year
1. 1 answer
2. 686 views
Ethel collects animal stickers.She has 30 cat stickers,15 horse stickers,19 dog stickers and 11 rabbit stickers. One third of
1. 1 answer
2. 641 views
a ferris wheel is elevated 1 meter above ground. When car reaches the highest point of the Ferris wheel, it's altitude from
1. 5 answers
2. 15,168 views
A ferris wheel is elevated 1 meter above ground. When car reaches the highest point of the ferris wheel it's altitude from
1. 3 answers
2. 1,964 views
A 5.20 g pellet is shot horizontally from a BB gun at a speed of 29.1 m/s into a 20.8 g wooden block. The wooden block is
1. 0 answers
2. 552 views
What are two themes in Perseus Adventures? Reading the book but really don't understand the question
1. 1 answer
2. 485 views
The sum of 3 consecutive odd numbers is 63. What is the smallest of these numbers
1. 1 answer
2. 526 views
Describe in 7 sentences the significant of each individual.1. Aryans 2. Asoka 3. Brahmins 4. Confucius 5. Laozi 6. Shi Huangdi
1. 1 answer
2. 626 views
The difference between twice a number and a number that is 5 more than 3. Write an equation that could be used to find the value
1. 3 answers
2. 3,032 views
Identify and define the causes of mental disorders
1. 1 answer
2. 484 views
A rectangle has dimensions in feet as shown in the figure it is 2x +5And one side is 8. I need to write an expression for the
1. 2 answers
2. 971 views
An object with initial velocity of 20 m/s accelerates uniformly at 5 m/s in the direction of its motion for a distance of 10 m.
1. 2 answers
2. 2,117 views
Estimate the area under the curve f(x) = x2 + 1 from x = 0 to x = 6 by using three circumscribed (over the curve) rectangles.
1. 4 answers
2. 1,877 views
A piece of cobalt has a mass of 41 g and is initially electrically neutral. It is then charged with q = +0.6 µC.(a) How many
1. 1 answer
2. 628 views
Determine the magnitude of the force between an electric dipole with a dipole moment of 2 ✕ 10-29 C m and an electron. The
1. 1 answer
2. 644 views
An object in equilibrium has three forces exerted on it. A 25 N force acts at 90 from the x-axis and a 48 N force acts at 60.
1. 1 answer
2. 944 views
The radiator in a car is filled with a solution of 60% antifreeze and 40% water. The manufacturer of the the antifreeze suggests
1. 1 answer
2. 2,336 views
The radiator in a car is filled with a solution of 60% antifreeze and 40% water. The manufacturer of the the antifreeze suggests
1. 1 answer
2. 788 views
Two cars leave the same town and travel in opposite directions. At the end of 8 hours, the cars are 896 miles apart. Find the
1. 2 answers
2. 737 views
Gab and Van can mow the lawn in 40 minutes if they work together. If Gab works twice as fast as Van, how long does it take Gab
1. 2 answers
2. 526 views
What does this poll most suggest about U.S. citizens?a.) they belive that higher taxes are worth the cost and benefits b.) they
1. 3 answers
2. 548 views
What is one certain long-term cost of adding to national debt?a.) Americans in the future must have fewer public services b.)
1. 3 answers
2. 605 views
Let 70.0 J of heat be added to a particular ideal gas. As a result, its volume changes from 65.0 cm3 to 169.0 cm3 while the
1. 1 answer
2. 688 views
An engineer has an odd-shaped object of mass 16 kg and needs to find its rotational inertia about an axis through its center of
1. 0 answers
2. 684 views
A 2.40 kg mess kit sliding on a frictionless surface explodes into two 1.20 kg parts:3.78 m/s, due north, and 5.28 m/s, 32.8°
1. 1 answer
2. 1,136 views
Frank teacher was teaching the class about fractions. She posted the fractions 1/7 and 3/9 on the board. Frank was supposed to
1. 2 answers
2. 1,021 views
There are two fractions that are given. The two fractions are 3/12 and 7/12.what answer so you come up with if you were to add
1. 1 answer
2. 464 views
I'm stumped4ko2 + 2co2 ----2k2co3 + 3o2 What mass of k02 in grams is required to react with 8.90 l at 22.0 c and 767 mm hg?
1. 1 answer
2. 1,555 views
Prove the identity:sec^4x - tan^4x = 1+2tan^2x
1. 3 answers
2. 2,479 views
A small quantity of hydrochloric acid and a large quantity of limestone chips (CaCO3) are reacted on a beaker, which was placed
1. 2 answers
2. 709 views
If EF= 10x+12, FG=14, and EG= 136, what is the value of x?
1. 0 answers
2. 415 views
For the electrolysis of molten potassium bromide:(a) write the equation for the reaction at cathode. (b) write the equation for
1. 4 answers
2. 3,465 views
For the electrolysis of molten potassium bromide:Write the equation for the overall reaction.
1. 3 answers
2. 1,388 views
In the electrolytic refining of copper, write equation for the reaction of the impure copper.
1. 1 answer
2. 629 views
Write the anodic reaction for the electrolysis of concentrated zinc chloride solution.(a) Using plantium electrodes. (b) Using
1. 3 answers
2. 1,872 views
Please I need help.Many,but not all, compounds are made up of positive and negative ions. Three positive ions A^+, B^2+ and C^3+
1. 1 answer
2. 674 views
How many moles of atoms are there in 32g of sulfur?
1. 1 answer
2. 501 views
Calculate the molarity of sulfuric acid if 25.00 mL of 0.095 mol L NAOH reacts with 26.45 mL of the acid.
1. 1 answer
2. 553 views
How many grams are there in 2.5 moles of CuSO4.5H2O?
1. 1 answer
2. 651 views
A 25 mL solution of nitric acid was placed in a flask and a few drops of phenolphthalein were added. Dilute sodium hydroxide was
1. 2 answers
2. 713 views
A parallelogram has two adjacent sides of length 4cm and 6cm reapectively. If the included angle measures 52 degrees, find the
1. 5 answers
2. 2,782 views
John wishes to determine the height of a flagpole. He takes a sighting of the top of the flagpole from point P. He then moves
1. 1 answer
2. 2,275 views
An aircraft dropped a box of emergency supplies to a group of trampers. The height of the box above the ground, h, at time, t is
1. 1 answer
2. 562 views
Please I need help..how can I solve this guadratic equation??520 - 5t^2 = 0
1. 1 answer
2. 493 views
Solve this equation by completing squares and then check the solution..x = 21/x-4
1. 1 answer
2. 491 views
a)Express y = 2 (x - 1) (x - 5) in the form y = ax^2 + bx + c.b) From the above quadratic equation calculate the following: I) x
1. 1 answer
2. 570 views
An aircraft dropped a box of emergency supplies to a group of trampers. The height of the box above the ground, h, at time, t,
1. 1 answer
2. 545 views
Write without negative indices: a^-3b/c^-1
1. 1 answer
2. 688 views
Write 1/2^1-n in non- fractional form.
1. 2 answers
2. 1,205 views
Write as powers of 2.(a) 16 (b) 2^m/8
1. 1 answer
2. 408 views
Find the coordinates of the points of intersection of the straight line y = 3x - 6 with the parabola y = x^2 - 6x + 8 and solve
1. 1 answer
2. 692 views
Given the quadratic equation y = -x^2 + 2x + 3.a) Will the graph turn upwards or downwards? b) What are the coordinates of x and
1. 1 answer
2. 757 views
2/ x^2 - 9xy^2 - 3/3x + 12y
1. 1 answer
2. 541 views
Simplify; x^2 - x - 6/ 6xy divide x^2 - 9/2x^2y
1. 1 answer
2. 482 views
Simplify; (x - y)^3 divide x^2z - 2xyz + y^2z
1. 1 answer
2. 436 views
Simplify 5x/7 × 15y/8x
1. 1 answer
2. 477 views
Simplify; p^2 - p - 42
1. 1 answer
2. 409 views
Solve this equation; p^2 - p - 42
1. 1 answer
2. 400 views
Solve this equation; p^2 - p - 42
1. 1 answer
2. 378 views
Simplify; x^2 + ax + bx + ab divide x^2 + 2ax + a^2.
1. 1 answer
2. 467 views
Simplify this expression;X^2 + ax + bx + ab/x^2 + 2ax + a^2
1. 1 answer
2. 437 views
Simplify 5x/7 × 15y/8x
1. 1 answer
2. 416 views
Solve this equation. 2/5 (x^2 + 1) = x
1. 1 answer
2. 820 views
Find the coordinates of the points of intersection of the straight line y = 3x - 6 with the parabola y = x^2 - 6x + 8.a)
1. 1 answer
2. 538 views
Given the quadratic equation y = -x^2 + 2x + 3.a) Will the graph turn upwards or downwards? b)What are the coordinates of x and
1. 1 answer
2. 869 views
How do you factor 2a^2+5x+3
1. 1 answer
2. 431 views
Write the equations below in the form y = mx + c.State how many solutions each systems of linear equation have. 3x = 6y 2y - 6x
1. 1 answer
2. 509 views
What is the equation of the line which has gradient 2, and passes through midpoint of (3,4) and (5,6)
1. 1 answer
2. 540 views
What is the value of p if the line (3p + 1)x - 2y = 6p is perpendicular to the line 2x - y + 1 = 0
1. 1 answer
2. 356 views
Solve 2y - 5x = 3 and x + y = 5 using substitution.
1. 1 answer
2. 474 views
Show by calculations weather the following lines are parallel or not.. y + 5x = 1 and 0.2 = y - 5.
1. 1 answer
2. 451 views
Construct the table of values for the following equation 1 - 3x = 2y for -4<x <4. Use the answer to sketch the graph.
1. 1 answer
2. 757 views
If changing conditions lead to decreased oxygen levels in the stream, the carrying capacity of the stream for the trout will
1. 2 answers
2. 783 views
One pump can empty a pool in 5 days, whereas a second pump can empty the pool in 7 days. How long will it take two pumps,
1. 1 answer
2. 542 views
When the function f(x) is equal to 2xn + ax2 - 6 is divided by (x-1), the reminder is -7 and when divided by (x+3), the reminder
1. 1 answer
2. 463 views
Calculate the arc length that subtends an angle of 55 degree at the centre of a circle with radius r = 5cm.
1. 3 answers
2. 2,159 views
The relationship between the vertical height and the horizontal distance of a ball thrown at 45 degree is given by the equation
1. 1 answer
2. 1,078 views
The length of a rectangle is 10cm greater than its width. The perimeter of the rectangle is 1m. Find the simplest expression for
1. 1 answer
2. 599 views
Find dy/dx if y = 1/8.
1. 1 answer
2. 370 views
Does the parabola y = -3x^2 + 2x - 1 have a maximum or minimum value?
1. 1 answer
2. 1,080 views
Find the line that is perpendicular to y = -3/4 x + 2 and passes through (3,4).
1. 1 answer
2. 990 views
Sine and Cosine rule are both used in solving trigonometry problems.Give an example of when the cosine rule is more appliciable
1. 1 answer
2. 1,256 views
Find the two stationary points on the curve when y = 2x/x^2 + 1
1. 1 answer
2. 1,720 views
A circle x^2 + y^ + 2x - 2y -1 = 0 expressed in the following form (x-h)^2 + (y-k)^2 = r^2 where h, k are the coordinates of the
1. 1 answer
2. 495 views
A circle x^2 + y^ + 2x - 2y -1 = 0 expressed in the following form (x-h)^2 + (y-k)^2 = r^2 where h, k are the coordinates of the
1. 1 answer
2. 454 views
0.2 Faradays of electricity were passed through solutions of sulphuric acid. Calculate the volume of hydrogen evolved at s.t.p
1. 1 answer
2. 622 views
What would be the product formed for electrolysis of copper sulphate between the electrodes (a) Platinum (b) Copper and NaCl
1. 0 answers
2. 524 views
Find the wind velocity if course 060 degree, airspeed 250km/h; track 040 degree, ground speed 260km/h.
1. 0 answers
2. 362 views
Find the course and ground speed if Track 150 degree, airspeed 400km/h; wind 040degree, 30km/h.
1. 1 answer
2. 339 views
Find the indicated term for (1-2x)^10, middle term.
1. 2 answers
2. 496 views
Find the ratio of the coefficients of the 4th and 6th terms in the expansion of (1 + 2x)^16
1. 1 answer
2. 605 views
This balance equation shows the burning of octane in air. 2C8H18 + 25O2 ----> 16CO2 + 18H2O. How many grams of carbondioxide
1. 1 answer
2. 900 views
Find the expansions of (1-x)^6 and (1+2x)^6 as far as the terms in x^3. Hence expand (1+x-2x^2)^6 up to the terms in x^3.
1. 1 answer
2. 401 views
The coefficient of x^2 is 69 in the expansion of (1-ax)^24, where a>0. Find the coefficient of x^3.
1. 2 answers
2. 2,746 views
Expand (1-x)^4. Hence find S if S = (1-x^3)^4 - 4(1-x^3)^3 + 6 (1-x^3)^2 - 4(1-x^3) + 1.
1. 1 answer
2. 606 views

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