06/27/21

WORD PROBLEMS 2
  A force of 10 lbs is used to move a 15-lb box across a horizontal deck, a distance of 5 ft. If the force makes an angle of 300 with the floor,     a) How much work is done?    b) What is its... more
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06/27/21

WORD PROBLEMS 2
  A force of 10 lbs is used to move a 15-lb box across a horizontal deck, a distance of 5 ft. If the force makes an angle of 300 with the floor,     a) How much work is done?    b) What is its... more
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06/27/21

word problems - speed and velocity
A truck’s speed increases uniformly from 36 kph to 108 kph. In 20 seconds. Determine the following: Average speed (velocity) The acceleration in meter/sec. The distance in meter covered during this... more
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06/25/21

Calculus- find an equation of the tangent line to the curve

If f(x) = 5x^2 − x^3, find f ′(1) and use it to find an equation of the tangent line to the curve y = 5x^2 − x^3 at the point (1, 4).
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06/25/21

an account pays 8% per year interest. in year 1, the amount in the account is $850. how much is in the account in year 6?
A. $1248.93B. $1190.00C. $1130.00D. $ 1209.85
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06/25/21

A 127 kg motorcycle is driving around a turn with a radius of 69.2 m at a constant speed of 19.6 m/s.
A 127 kg motorcycle is driving around a turn with a radius of 69.2 m at a constant speed of 19.6 m/s. What is the minimum force of friction required to prevent the cycle from sliding off of the... more
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06/24/21

the line y 2x 1 needs the y axis at b and line y=5 at c calculate the area of the triangle ABC
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06/24/21

Angle of depression question
From the top of a building a person spots two boats out on the lake. The angle of depression from the person to one of the boats is 18°, the angle of depression from the person to the other boat is... more
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06/24/21

Trigonometry question
A hot air balloon is flying above the mall. Elli is standing due North of the mall and can see the balloon at an angle of inclination of 64°. Helmut is due south of the mall and can see the balloon... more
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06/24/21

Trigonometry question
Helmuts angle of elevation to the top of the building is 32°. Elli is standing 105m closer to the building, directly in front of helmut. Ellis angle of elevation to the top of the building is 40°.... more
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06/24/21

FIND THE DISTANCE
A particle moves in a straight line and its position is given by s(t) = t 3 - 6t2 - 15t + 40, where ''s'' is measured in feet and ''t'' in seconds. Find the total distance traveled in the first 10... more
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06/24/21

physics work done
A boy pulls a box of mass 48kg with a force of 110N at an angle of 28deg above the horizontal.The coefficient of friction between the sled and surface is 0.32. Determine whether the work done by... more
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06/22/21

Differentiate (v^3+5v^2)(2v^7-6v^5) with respect to v.
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06/22/21

Integrate 12f squared with respect to f.
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06/22/21

Differentiate 2c to the fifteenth power with respect to c.
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06/22/21

What is the surface area ?

A rectangular box with a square base has length 16 in and has no topDetermine its the has height 32 in.. How does the formula change if the box has no top ?
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06/22/21

A rectangular field is bounded by a fence on three sides and by a straight stream on the fourth side.

A rectangular field is bounded by a fence on three sides and by a straight stream on the fourth side. Find the dimensions of the field with the maximum area that can be enclosed with 400 feet of... more
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06/22/21

What would the base, hypotenuse, and perimeter be?

A right triangle has height 5 cm. If the right triangle has area 85 cm ^ 2 determine its base, hypotenuse , and perimeter
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06/22/21

How do I solve (f(x-h)+f(x)/h) where f(x-h)=2x^2-4xh+2h^2-3 & f(x)=2x^2-3
f(x-h)+f(x) =(2x2-4xh+2h2-3)+(2x2-3)[f(x-h)+f(x)]/h=???
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06/22/21

Calculus Problems

 After a foreign substance is introduced into the blood, the rate at which antibodies are produced is given by    where A is thousands of antibodies and t is the time in minutes since introduction.... more
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06/22/21

I need help with a physics problem
In a popular new mini hockey game, players use small launchers with springs to move a 5 gram puck. Each spring has a spring constant of 150 N/m and can be compressed up to 5 cm. Solve for the... more
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06/18/21

Calculus Homework Help
what is the instantaneous slope of y = 6/x at x = -2?
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06/18/21

Two angles are complementary (the sum of the two angles is 90 degrees). The sum of the first angle plus twice the second angle is 150 degrees. Find the measures of the angles.
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06/18/21

Calculate load for an I beam used as a column
Hello. I am trying to calculate how much load can an I beam bear if used as a column. it is a steel beam W 5x16
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06/09/21

What are the dimensions of the rectangular area that Louise roped off? And what is the maximum area of the rectangular area?
Louise wants to build rectangular greenhouse on the side of her house. She starts of by roping off the area she wants to build in. Since one side of the greenhouse will be the side of her house,... more
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