2,563 Answered Questions for the topic 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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03/28/22

What is the equation of the normal line to the curve, cot(x+y) -sin(x-y) =1 at 0,Π/2?
What is the equation of the normal line to the curve, cot(x+y) -sin(x-y) =1 at 0,Π/2?
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03/28/22

Answer the following problems.

1.A child is flying a kite at a height of 40 ft, that is, moving horizontally at a rate of 3ft /sec. If the string is taut, at what rate is the string being paid out when the length of the string... more
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03/28/22

A stone is dropped into a still pond. Concentric circular ripples spread out, and the radius of the disturbed region increases at the rate of 16 cm/sec.

A stone is dropped into a still pond. Concentric circular ripples spread out, and the radius of the disturbed region increases at the rate of 16 cm/sec. At what rate does the area of the disturbed... more
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03/28/22

A spherical snowball is being made so that its volume is increasing at the rate of 8ft^3/min/ Find the rate at which the radius is increasing when the snowball is 4t in diameter.

A spherical snowball is being made so that its volume is increasing at the rate of 8ft^3/min/ Find the rate at which the radius is increasing when the snowball is 4t in diameter. Show Complete... more
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03/28/22

A child is flying a kite at a height of 40 ft, that is, moving horizontally at a rate of 3 ft/sec.

A child is flying a kite at a height of 40 ft, that is, moving horizontally at a rate of 3 ft/sec. If the string is taut, at what rate is the string being paid out when the length of the string... more
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03/28/22

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).
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03/26/22

PLEASE help with statistical probability questions!
In a class of 26 students, 14 have a cat and 7 have a dog. There are 5 students who have a cat and a dog. What is the probability that a student chosen randomly from the class does not have a dog?
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03/24/22

A solid shaft of diameter d = 10 cm (Fig. 1.37) is subjected to a tensile force P = 10,000 N and a torque T = 5000 N cm. At point A on the surface,determine the principal stress,

A solid shaft of diameter d = 10 cm (Fig. 1.37) is subjected to a tensile force P = 10,000 N and a torque T = 5000 N cm. At point A on the surface,determine the principal stress, the octahedral... more
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Maths Math

03/24/22

what is the solution to the system of equations graphed below y=-4x+2 y=x-3
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Maths Math

03/24/22

what is the solution to the system of equations graphed below y=-4x+2 y=x-3
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03/24/22

For the values in each table, determine if direct variation exists between the variables. If it does, state the constant of variation.
a). x y -1 -1 4 14 8 26 20 62b). x y -3 3/2 2 -1 15 ... more
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03/24/22

Looking Forward, Looking Back, Simplify.
a). (10x3)(5x2)b). (10x3)2c).10x3/5x2
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03/24/22

Simplify each expression using exponent rules. Write each answer in scientific notation.
a). (3x104)(6x106)(2x108)b). (1x1011)(7x105)2/7x104
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03/24/22

Answer true or false for each statement.
a). If a number in scientific notation has a negative exponent, then the number is negative.b). A number that is at least 1 but less than 10 cannot be written in scientific notation.c). A negative... more
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03/24/22

Convert to scientific notation.
Convert to scientific notation.a). -0.0001b). 52x104
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03/24/22

Please help me to solve this.
a). Convert $1 from U.S. dollars to euros to pounds to yen.b). Convert $1 directly (in one step) from U.S. dollars to yen.c). Are answers from parts a and b exactly equal? If not, what could... more
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03/24/22

Convert 25 cubic yards to cubic inches.
Convert 25 cubic yards to cubic inches.
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03/24/22

Convert 20 mph to kilometers per minute.
Convert 20 mph to kilometers per minute.
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03/23/22

The average weight of 25 chocolate bars selected from a normally distributed population is 200 grams with a standard deviation of 10 grams.

   The average weight of 25 chocolate bars selected from a normally distributed population is 200 grams with a standard deviation of 10 grams. Find the point estimate and the confidence interval... more
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03/22/22

Simplify the expression using exponent rules. Write the answer in scientific notation.

Simplify the expression using exponent rules. Write the answer in scientific notation.(6x107)(8x106)(9x108)
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03/22/22

Assume an exponential function has a starting value of 13 and a growth rate of 0.35%. Write an equation to model the situation.

Assume an exponential function has a starting value of 13 and a growth rate of 0.35%. Write an equation to model the situation.
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03/22/22

Convert the following:
Convert the following:a). 75 miles per hour to kilometers per hourb). 1500 square yards to square metersc). 25 cubic yards to cubic centimeters
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03/22/22

Solve the following equations for the unknown variable:
Solve the following equations for the unknown variable:a). 4x2=1600b). 1/2x=12c). square root of x=7d). 3x=81
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03/22/22

Please help me to solve this.
Solve for h: A=1/2hb1+1/2hb2
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