6,938 Answered Questions for the topic mathematics

Mathematics Math Calculus

03/31/22

Setting up double integral
Set up (do not evaluate) a rectangular double integral which gives the volume of the solid in the first octant with faces determined by the planes x + y + z = 6, x + 2y = 6, z = 0, and x = 0.
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Mathematics Math Calculus

03/31/22

Mass of lamina double integral
Consider a lamina the shape of a region in the first quadrant, inside the circle (x − 2)2+y2= 4 and outside the circle x2+y2= 8. Set up (do not evaluate) a polar double integral equal to the mass... more
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Mathematics Math Calculus

03/31/22

Double Integral Region
∫∫R (2xy)/(x2+y2)dA here R is the region in the first quadrant bounded by x2+y2= 4, x2+ y2= 1, y = x/√3 , and x = 0
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Mathematics Math Algebra Functions

03/31/22

The cost function for a telephone manufacturing plant is... Determine the following...
Question #1:The cost function for a telephone manufacturing plant is  and the revenue function is , where x is the number of telephones sold, in thousands.a) Determine the profit function for the... more
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Mathematics Math Algebra Equations

03/31/22

A quadratic function has these characteristics. Please determine the following...
Question #1:A quadratic function has these characteristics:x = 1 is the equation for the axis of symmetry.x = –1 is an x-intercept.y = –4 is the minimum value.Determine the y-intercept of this... more
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Mathematics Math Math Graphs

03/30/22

A highway tunnel has a shape that can be modelled by the equation of a parabola. The tunnel is 18 m wide and the height of the tunnel 16 m from the edge is 5 m.
Question #1:Question #2:A highway tunnel has a shape that can be modelled by the equation of a parabola. The tunnel is 18 m wide and the height of the tunnel 16 m from the edge is 5 m.a) Determine... more
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Mathematics Math Algebra 1 Algebra 2

03/30/22

Dot product problem
a*b=|a||b|cosθ; |a|=1, |b|=4, θ=π/3Find: 1) (2a-3b)(a+b)2) |2a-3b|How to solve these kind of problems?
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Mathematics Math Algebra 1 Algebra 2

03/30/22

Vector dot product problem
a*b=|a||b|cosθIt is known that |a|=1, a*b=-2a) find θ, if |b|=2b) find the interval of |b|
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Mathematics Math Equations Functions

03/30/22

The graph shows a function f that is a parabola. Determine the following...
Question #1:The graph shows a function f that is a parabola.a) Determine the equation of f(x). b) Determine the equation(s) of . Question #2:Muhammad is disc shooting. The height of the disc, in... more
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Mathematics Math Algebra Equations

03/30/22

The graph shows a function f that is a parabola. Please determine the following...
Question #1:The graph shows a function f that is a parabola.a) Determine f(x).b) Determine the domain and range of f-1(x).c) Determine the equation(s) for .Question #2:A highway tunnel has a shape... more
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Mathematics Math Functions Graphing

03/30/22

A quadratic function has these characteristics: x = 1 is the equation for the axis of symmetry. x = –1 is an x-intercept. y = –4 is the minimum value. Determine the y-intercept of this parabola.
Question #1:A quadratic function has these characteristics:x = 1 is the equation for the axis of symmetry.x = –1 is an x-intercept.y = –4 is the minimum value.Determine the y-intercept of this... more
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Mathematics Math Science Physics

03/30/22

Help needed with physics
A 1200 kg safe is 2.4 m above a spring when the rope holding the safe breaks. The safe hits the spring and compresses it 42 cm. What is the spring constant of the spring?
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Mathematics Math Science Physics

03/30/22

Help with physics question
A system in which only one particle can move has the potential energy shown in the figure. Suppose U1 = 92 J. What is the y -component of the force on the particle at y = 0.5 m ? What is the ... more
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Mathematics Math Science Physics

03/30/22

Help needed with physics question
A 58.0 kg skateboarder wants to just make it to the upper edge of a "quarter pipe," a track that is one-quarter of a circle with a radius of 2.70 m. What speed does he need at the bottom?Any help... more
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Mathematics Math Calculus Maths

03/30/22

Find the equation of the tangent line and normal line to the curve e^(-x)-y=0 at (-1,0).
Find the equation of the tangent line and normal line to the curve e^(-x)-y=0 at (-1,0). Tangent lineis y=-e(x+1) correct?Normal Lineis y=1/e (x+1) correct?
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Mathematics

03/29/22

At a certain zoo, the average mass of one cow is measured to be 410 kilograms. Use scientific notation to express the mass of 95 cows.
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Mathematics Math Sat Math Maths

03/29/22

Show that line 1: <1+t, -3-t, 5+2t > and line 2: < 4-s, -3+s, 6+2s >are skewed.
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Mathematics

03/29/22

select all the expressions that equal to 4 x 10 to the sixth power
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03/29/22

what is the measure of the following angle
NOTE : TRIANGLEIHAVE C = 85E = 50A = 45
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Mathematics Math Calculus Maths

03/29/22

An airplane is flying parallel to the ground at an altitude of 2 km and at a speed of 4(1/2km)/minf the plane flies directly over the Statue of Liberty,

An airplane is flying parallel to the ground at an altitude of 2 km and at a speed of 4(1/2km)/min. If the plane flies directly over the Statue of Liberty, at what rate is the line- of- sight... more
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Mathematics Math Algebra 2 Algebra

03/29/22

Sharon shared a Tik Tok with 3 of her friends. Within 1 hour , each of her friends had shared it to 3 of their friends. Sharon wants to know how many people would have seen the Tik Tok after 6 hours.
Sharon shared a Tik Tok with 3 of her friends. Within 1 hour , each of her friends had shared it to 3 of their friends. Sharon wants to know how many people would have seen the Tik Tok after 6... more
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Mathematics Math Algebra 2 Algebra

03/29/22

Sharon shared a Tik Tok with 3 of her friends. Within 1 hour , each of her friends had shared it to 3 of their friends. Sharon wants to know how many people would have seen the Tik Tok after 6 hours.
Sharon shared a Tik Tok with 3 of her friends. Within 1 hour , each of her friends had shared it to 3 of their friends. Sharon wants to know how many people would have seen the Tik Tok after 6... more
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Mathematics Math Algebra 2 Algebra

03/29/22

The corona virus is living in Sally. It is estimated she has 36k virus cells in her body.
The corona virus is living in Sally. It is estimated she has 36k virus cells in her body. She decides to take zinc supplements to help her feel better and it states on the bottle she will reduce... more
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Mathematics

03/28/22

You divide a number by 3,add 6,then subtract 7.The result is 4. What is the number?
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Mathematics

03/28/22

If a1 =1 and an=(an-1)2+4 then find the value of a3
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