Newest Math Questions | Wyzant Ask An Expert

11/01/23

Derivatives and Shape of Graph

Let p(z) = 5z^4-10z^2+15. Find the values or intervals below.interval(s) on which p is increasing:interval(s) on which p is decreasing:point(s) at which p achieves a local maximum:point(s) at which... more

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Math

10/31/23

College Readniess Math

A sports tournament has d teams. Each team has 6 players. Using d, write an expression for the total number of players in the tournament.

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Math

10/31/23

NASA launches a rocket at t=0 seconds. Its height, in meters above sea-level, as a function of time is given by ℎ(t)=-4.9^2+268t+311.

NASA launches a rocket at t=0 seconds. Its height, in meters above sea-level, as a function of time is given by ℎ(t)=-4.9^2+268t+311. For each of the answers below, put your numerical answer,... more

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Answers •2

Math Chemistry Differential Equations Computer Programming

10/31/23

Transport and fluid

I built a mathematical model for transport modeling with two phases water and solid. I made a conceptual model to make the problem more simple. I know that once the transport modeling initiates the... more

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Math

10/31/23

The line along which the line is translated to create parallel lines is called a

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Math

10/31/23

A car corporation produced 560 fewer cars this month than last. Write a signed number to represent this month's change in production.

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Answers •1

Math

10/31/23

whats the x intercept and y intercept of y= -3x+6 ?

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Answers •2

Math

10/30/23

i need help with this and how you work out the equation

The strength of a beam is directly proportional to its width and the square of its depth but inversely proportional to its length. If a beam that is 6 inches wide, 6 inches deep, and 3 feet long... more

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Math

10/30/23

The value of China's exports of automobiles and parts (in billions of dollars) is approximately f(x)= 1.8208e^.3387x, where x = 0 corresponds to 1998. In what year did/will the exports reach $6.2 bil

Give the answer as the year, with at least one decimal place

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Math

10/30/23

The cost to produce x units of wire is C=105x +60, while the revenue is R=85x. Find the interval where the product will at least break even.

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Math

10/29/23

How many cans weighing 20oz are in a case if the case weighs 21lbs 4 oz

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Math Statistics

10/29/23

Statistics Question

Suppose Brian believes that over 50% of the packages include more than 140 grams of chocolate. Based on the same sample of 16 packages, he is interested in testing his belief. Write down the formal... more

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Math

10/29/23

Use the given conditions to find the exact values of sin(2u), cos(2u), and tan(2u) using the double-angle formulas. tan(u) = 3/5, 0 < u < 𝜋/2

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Math Precalculus

10/28/23

A researcher believes that if x thousand individuals among a susceptible population are inoculated

A researcher believes that if x thousand individuals among a susceptible population are inoculated (made no longer susceptible to a disease), then a function of formI(x)=a⋅R^x−bfor constants a, b,... more

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Math Precalculus

10/28/23

Suppose that a photocopy machine can reduce copies to 70 percent of their original size.

Suppose that a photocopy machine can reduce copies to 70 percent of their original size. By copying an already reduced copy, further reductions can be made.1) If a page is reduced to 70 percent,... more

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Math Statistics

10/27/23

How do i go about solving this? i was sick and missed class, but the notes dont seem to be helping

n a large population of adults, the mean IQ is 117 with a standard deviation of 15. Suppose 40 adults are randomly selected for a market research campaign. (Round all answers to 4 decimal places,... more

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Math

10/27/23

How much EtOH solution?

How much of 95% EtOH stock solution will you need to make 500 uL of a 70% EtOH solution?

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Math

10/27/23

Math question to find out X and Y

If( 90% × 10 ) + ( 10% × 5 ) = 9.5What is the formula to find out each X and Y in the below( 90% × X ) + ( 10% × Y ) = 2

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Math Calculus

10/27/23

Optimization problem

A box with a square base and an open top will be made from 1400 cm^2 of material.Find the largest possible volume of the box.Volume=???

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Math Calculus

10/27/23

Optimization problom

A box is to have an open top, vertical sides, a square bottom, and a volume of 108 m^3.Find the dimensions that minimize the surface area of the box.Height= ????Length=????

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Math Precalculus

10/27/23

An alcohol solution consists of 7 gallons of pure water and x gallons of alcohol, x>0 . Let f(x) be the ratio of the volume of alcohol to the total volume of liquid.

An alcohol solution consists of 7 gallons of pure water and x gallons of alcohol, x>0. Let f(x) be the ratio of the volume of alcohol to the total volume of liquid.(Note that f(x) is the... more

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Math

10/26/23

what is the solution to this problem?

A grocery store flyer has red grapes 5 lbs. for $5.50. How much would you pay for 7 lbs. of red grapes?

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Math

10/26/23

44 decreased by twice a number

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Math Calculus Precalculus

10/26/23

sin²x (1 + cot²x) = 1

sin²x (1 + cot²x) = 1LHS: sin²x (1 + cot²x)= sin²x (csc²x) (what rule)= sin²x (1 / sin²x) (what rule)= 1 (what rule)(Algebra, Reciprocal, Quotient, Pythagorean, or Odd/Even)

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Math Calculus Precalculus

10/26/23

cot²x (sec²x - 1)

LHS: cot²x (sec²x - 1)= cot²x (tan²x) (find the rule)= cos²x/sin²x ⋅ sin²x/cos²x (find the rule)= 1 (find the rule)(Algebra, Reciprocal, Quotient, Pythagorean, or Odd/Even)

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Derivatives and Shape of Graph

College Readniess Math

NASA launches a rocket at t=0 seconds. Its height, in meters above sea-level, as a function of time is given by ℎ(t)=-4.9^2+268t+311.

Transport and fluid

The line along which the line is translated to create parallel lines is called a

A car corporation produced 560 fewer cars this month than last. Write a signed number to represent this month's change in production.

whats the x intercept and y intercept of y= -3x+6 ?

i need help with this and how you work out the equation

The value of China's exports of automobiles and parts (in billions of dollars) is approximately f(x)= 1.8208e^.3387x, where x = 0 corresponds to 1998. In what year did/will the exports reach $6.2 bil

The cost to produce x units of wire is C=105x +60, while the revenue is R=85x. Find the interval where the product will at least break even.

How many cans weighing 20oz are in a case if the case weighs 21lbs 4 oz

Statistics Question

Use the given conditions to find the exact values of sin(2u), cos(2u), and tan(2u) using the double-angle formulas. tan(u) = 3/5, 0 < u < 𝜋/2

A researcher believes that if x thousand individuals among a susceptible population are inoculated

Suppose that a photocopy machine can reduce copies to 70 percent of their original size.

How do i go about solving this? i was sick and missed class, but the notes dont seem to be helping

How much EtOH solution?

Math question to find out X and Y

Optimization problem

Optimization problom

An alcohol solution consists of 7 gallons of pure water and x gallons of alcohol, x>0 . Let f(x) be the ratio of the volume of alcohol to the total volume of liquid.

what is the solution to this problem?

44 decreased by twice a number

sin²x (1 + cot²x) = 1

cot²x (sec²x - 1)

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