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Question 1192248: A car and a jepp are 7 km apart. The car starts from rest and travels towards the jeep with an acceleration of 3.5 m/s2. The jeep starts from rest and travels towards the car with an acceleration of 2.25 m/s2. Where and where they will meet if:
a. They started at the same time?
b. b. The jeep started ahead of the car?
Click here to see answer by Alan3354(69443)

Question 1192243: Hello, we were tasked to make a set problem that is related to sport and I chose the sport, golf. Can you help me make a set problem? It will gladly help me. Thank you!
Click here to see answer by MathLover1(20849)

Question 1192303: Given that y = 4x^2-x-4, find the approximate percentage change in y as x increases from 2 to 2.02.
Click here to see answer by Edwin McCravy(20054)

Question 1192317: 1. 7/5 of a complete clockwise rotation?
2. 4/5 of a complete counter-clockwise rotation?
3. 5/8 of a complete clockwise rotation?
Click here to see answer by Alan3354(69443)

Question 1192315: 5/3 of a complete counter-clockwise rotation?
Click here to see answer by greenestamps(13195)

Question 1192307: All 30 students in a class study at least one of the two subjects History and Geography.
Twice as many study History as Geography. 8 students study only Geography.
By drawing a Venn diagram, or otherwise, find the number of students who study both History and Geography.
Click here to see answer by ikleyn(52748)

Question 1192302: Use the calculus to determine the approximate change in the area of a circle when the radius increases from 3 cm to 3.02 cm.
Click here to see answer by Alan3354(69443)

Question 1192378: Steel bar having a rectangular cross section 15mmx20mm and 11 m long is suspended vertically from one end. The steel has a unit mass of 7850 kg/cu.m. and E=200GPa. If the load of 20kN is suspended at the other end of the rod, determine the total elongation of the rod.
Click here to see answer by ikleyn(52748)

Question 1192429: Find the coordinates of the turning points of y = x^2/(x+1) . Determine in each case whether the point is a maximum or a minimum.
Click here to see answer by MathLover1(20849)

Question 1192445: The number of tribbles on the Starship Enterprise are tripling every hour. Initially, five tribbles were brought on board.
Write an equation to model this scenario. Define the variables being used?
At the given rate, how many tribbles will be on the ship after 8 hours?
How many more tribbles would there be 16 hours later?
Click here to see answer by math_helper(2461)

Question 1192444: Researcher are recording how much of an experimental medication is in a person’s bloodstream every hour. They discover that half-life of the medication is about 6 hours.
Write an equation to model how much medication will be in the bloodstream after an unknown number of days for an initial dose of 𝑎.?
Calculate how much medication is in a person’s bloodstream after 4 days if they took an initial dose of 500mg?
How much more medication will be in a person’s bloodstream if their initial dose was 750mg?
Click here to see answer by Theo(13342)

Question 1192468: Twice a number added to half of itself equals 20.Find the number
Click here to see answer by math_tutor2020(3816)

Question 1192493: Three sides of a trapezoid are each 10 cm long. How long is the 4th side, when the area of the trapezoid has the greatest value?
Click here to see answer by ikleyn(52748)

Question 1192497: Find the derivative of x^2+3x-1/(4x)^4/5
Click here to see answer by Alan3354(69443)

Question 1192377: An axial load of 100 kN is applied to a flat bar 20 mm thick, tapering in width from 120 mm to 40 mm in a length of 10 m. Assuming E = 200 GPa, determine the total elongation of the bar.
Click here to see answer by ikleyn(52748)

Question 1192569: Solve the following linear programming problems using simplex method.
Maximize Z = 3x+4y subject x+y=4, 2x+y = 5,x=0,y=0.
Click here to see answer by ikleyn(52748)

Question 1192571: Solve the following linear programming problems using graphical method.
Maximize P = 3x + 2y subject to 2x + y = 100, x + y = 8, x = 0 y = 0 2.
Minimize P = 5x + 8y subject to 2x + y = 0, 2x + 3y = 14 , x = 0 y = 0
Click here to see answer by ikleyn(52748)

Question 1192581: Solve the following linear programming problems using simplex method.
Maximize Z = 3x+4y
subject x+y <= 4, 2x+y <= 5, x >= 0,y >= 0.
Click here to see answer by ikleyn(52748)

Question 1192582: Solve the following linear programming problems using graphical methods
Maximize P = 3x+4y
subject to
2x+y <= 100, x+y <= 8, x >= 0,y >= 0.

Minimize P =5x+8y
subject to
2x+y <= 0, 2x+3y <= 14, x >= 0, y >= 0.
Click here to see answer by ikleyn(52748)

Question 1192594: If a car dealer will sell you a used car for 6,198 with 798 down and payments of 162.51 per month for 48 months?
Click here to see answer by ikleyn(52748)

Question 1192428: The graph of y = 2x^3 + ax^2 + b has a stationary point (-3,19) . Find the value of a and b. Determine the nature of the stationary point (-3,19).
Click here to see answer by greenestamps(13195)

Question 1192427: Given that y = √4x-7 - 2/3(x-4), find dy/dx and show that d^y/dx^2 = -4/(4x-7)√4x-7 . Hence find the maximum point of the curve.
Click here to see answer by greenestamps(13195)

Question 1192616: There are currently 30 frogs in a (large) pond. The frog population grows exponentially, tripling every 12 days.
How long will it take (in days) for there to be 140 frogs in the pond?
Click here to see answer by josgarithmetic(39613)

Question 1192626: Derivative of Function using the given formula:
F^1(X0)= Lim x-XO (fx) - f(XO)/x-X0
1.y= x^2+6 at x=2
2.y= 2x^3+5 at x=1

Click here to see answer by Alan3354(69443)

Question 1192677: An item is regularly priced at $60. Rafael bought it at a discount of 35% off the regular price. How much did Rafael pay?
Click here to see answer by ikleyn(52748)

Question 1192683: A stone is thrown at 10.0 m/s from a cliff 78.4 m high. Find the ff: a. How long does it take the stone to reach the ground? b. How far from the base of the cliff does it land.

Click here to see answer by ikleyn(52748)

Question 1192696: This is more of a calculus question. We are asked to determine epsilon for which the given limit is true.

lim = √x^2+4 = 2, where delta (𝛿) = 1
x-> 0
Click here to see answer by math_helper(2461)

Question 1192704: a) A portfolio management expert is considering 12 stocks for investment. Only 5 stocks will be selected for inclusion in a portfolio How many different combinations of stocks can be considered?

Click here to see answer by ikleyn(52748)

Question 1192695: This is more of a calculus question. We are asked to determine epsilon for which the given limit is true.

lim = 5x - 3/2 = 1, where delta (𝛿) = 0.1
x-> 1/2
Click here to see answer by ikleyn(52748)

Question 1192694: This is more of a calculus question. We are asked to determine epsilon for which the given limit is true.
1. lim = x^2 - 3x + 4 = 2, where delta (𝛿) = 0.5
𝑥→2

Click here to see answer by ikleyn(52748)

Question 1192716: Differentiate y=[(2x^2)-1]^3x-1
Click here to see answer by Alan3354(69443)

Question 1192732: Differentiate y=
Click here to see answer by Alan3354(69443)

Question 1192733: PROBLEM SOLVING. Analyze. Solve. Answer.
Draw diagrams wherever necessary. Round off your final answers up to 2 decimal places.
1.A 4.5-meter ladder leans against a building. If the top of the ladder is 3.75 meters above the ground, what is the angle made by the ladder with the ground?
2.Lisa stands at a distance of 60 m away from the base of a certain statue, making a 23° angle of elevation to the top. What is the height of the statue?
3.At a certain time of the day, the angle of elevation of the sun is 52°, what is the length of the shadow on the level ground of a man who is 1.67 m tall?
4.A pole was put up on a lake and stands 13 meters from the surface of the lake. From the top of the pole, the angle of depression of a small bunch of fishes on the other side of the lake is 32°. What is the distance from the base of the pole to the location of the fishes?
5.Sara and Junya made a string telephone and tested if it works. Sara stood at the top of a tower while Junya stayed at the ground level. From Sara’s viewpoint, the angle of depression of Junya is 64° with the horizontal. Junya is 10.5 m from the base of the tower. How long is the string of their improvised telephone?
Click here to see answer by ikleyn(52748)

Question 1192776: Determine the value of x , where 0 ≤ x ≤ π , for which the curve y = 2cosx + 3sinx has a stationary point and determine the nature of this point.
Click here to see answer by greenestamps(13195)

Question 1192775: Given that y = x + cosx , find dy/dx and the approximate change in y when x increases from π/6 to π/5.
Click here to see answer by Fombitz(32388)

Question 1192774: Expand each function (using the appropriate technique/formula). Compute the derivative of the expanded function by applying the differentiation rules.
1.f(x)= (x+5)^2
2.f(x)= (x^2+2x+3)^2
Click here to see answer by Fombitz(32388)

Question 1192840: The earth has a surface area of approximately 510100000km2
Water covers 70.8%of the earth's surface.
Work out the area of the earth surface covered by water

Click here to see answer by josgarithmetic(39613)

Question 1192841: What is the approximate value of ?
Click here to see answer by Edwin McCravy(20054)

Question 1192912: A point P is often identified in mathematics using the notation P(x,y) to reference a point at coordinates (x,y).
If P(11/12,y) is on the unit circle in quadrant IV, then y=
.
Click here to see answer by Boreal(15235)

Question 1192938: write 50 prime numbers under 1000
Click here to see answer by Alan3354(69443)

Question 1192938: write 50 prime numbers under 1000
Click here to see answer by Edwin McCravy(20054)

Question 1192938: write 50 prime numbers under 1000
Click here to see answer by ikleyn(52748)

Question 1193052: If AB=3x-1 and CD=x+8, what is the value of x?
Click here to see answer by josgarithmetic(39613)

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