6,938 Answered Questions for the topic mathematics

Mathematics Math Calculus Maths

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?
Mathematics Math Calculus Maths

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
Mathematics Math Calculus Maths

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
Mathematics Math Calculus Maths

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
Mathematics Math Calculus Maths

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
Mathematics Math Calculus Maths

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).
Mathematics Math Linear Algebra

03/27/22

Determine if the set of vectors is a basis of R5. If not, determine the dimension of the subspace spanned by the vectors.

{ [ -1 -1 1 -1 -1 ], [ 1 0 -1 -2 1 ], [ -2 -1 2 -1 -2 ], [ 2 -1 -2 -1 2 ], [ -1 -2 1 0 -1 ] }
Mathematics

03/26/22

Contemporary mathematics

How to translate 7 less than one- sixth of C into an expression?
Mathematics Math

03/25/22

Calculate the original price of the clothes.

A clothing retail outlet purchased clothes in bulk from a wholesaler for $30,770. This was after a discount of 5% on the purchase. Calculate the original price of the clothes.
Mathematics Math

03/25/22

Calculate their revenue this year.

Revenues of Saphire Inc. rose by 250% from last year. If their revenue last year was $840,000.00, calculate their revenue this year.
Mathematics Math

03/25/22

The price of a stock appreciated by 25.50% of its value last month and then depreciated by 25.50% this month.

The price of a stock appreciated by 25.50% of its value last month and then depreciated by 25.50% this month. By what percent did the stock appreciate or depreciate over the 2-month period? Express... more
Mathematics

03/25/22

What is the distance between point (5,4) and (2,-4)

Mathematics

03/25/22

how many bottles with a height of 15 cm and a radius of 3cm can fit in a 30x 24 x 16 box

i think its 16 bottles but i'm not quite sure because i don't know the working out. Can you also explain the working out?
Mathematics Algebra

03/24/22

Math Algebra Word Problem.

Piper is deciding between two truck rental companies. Company A charges an initial fee of $35 for the rental plus $3 per mile driven. Company B charges an initial fee of $80 for the rental plus $2... more
Mathematics Math Calculus Algebra

03/24/22

What equation should I use to answer this problem? ( nPn = N! or nPr = n! / (n - r)! )

Hello! I am having trouble answering this word problem: Assuming that all 21 contestants are qualified for each of the special awards, in how many ways can the winners for the special awards be... more
Mathematics Math Algebra 1 Algebra 2

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
Mathematics Math Algebra 1 Algebra 2

03/24/22

Looking Forward, Looking Back, Simplify.

a). (10x3)(5x2)b). (10x3)2c).10x3/5x2
Mathematics Math Algebra 1 Algebra 2

03/24/22

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

a). (3x104)(6x106)(2x108)b). (1x1011)(7x105)2/7x104
Mathematics Math Algebra 1 Algebra 2

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
Mathematics Math Algebra 1 Algebra 2

03/24/22

Convert to scientific notation.

Convert to scientific notation.a). -0.0001b). 52x104
Mathematics Math Algebra 1 Algebra 2

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
Mathematics Math Algebra 1 Algebra 2

03/24/22

Convert 25 cubic yards to cubic inches.

Convert 25 cubic yards to cubic inches.

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