59,618 Answered Questions for the topic Math

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
Follows • 1
Expert Answers •1
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
Follows • 1
Expert Answers •2

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
Follows • 1
Expert Answers •1

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
Follows • 1
Expert Answers •1
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
Follows • 1
Expert Answers •1
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?
Follows • 1
Expert Answers •1
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
Follows • 1
Expert Answers •1
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=???
Follows • 1
Expert Answers •1
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=????
Follows • 1
Expert Answers •1

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
Follows • 1
Expert Answers •2
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?
Follows • 1
Expert Answers •1
Math

10/26/23

44 decreased by twice a number
44 decreased by twice a number
Follows • 1
Expert Answers •1

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)
Follows • 1
Expert Answers •1

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)
Follows • 1
Expert Answers •1
Math

10/26/23

A restaurant has a total of 50 tables. Some of the tables can seat 6 people and some can sit 2 people. All of the seats are occupied when there 172 people seated. How many tables for 6 are there?
Follows • 1
Expert Answers •1
Math Calculus

10/26/23

Definition of the Derivative
No calculator is allowed on this question.The average rate of change of a function, f, on the interval [1, 1+Δx] is given by sin(Δx) + 3-5*deltax.Find f'(1).
Follows • 0
Expert Answers •2

10/26/23

cot²x (sec²x - 1) = 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, Odd/Even)
Follows • 1
Expert Answers •2

10/26/23

(1 - cosx)(1 + cosx) = sin²x
LHS: (1 - cosx)(1 + cosx)= 1 - cos²x (find the rule)= sin²x (find the rule)(Algebra, Reciprocal, Quotient, Pythagorean, Odd/Even)
Follows • 1
Expert Answers •1

10/26/23

The Nutty Professor sells cashews for $6.20 per pound and Brazil nuts for $5.00 per pound. How much of each type should be used to make a 44 pound mixture that sells for $5.55 per pound?
Follows • 1
Expert Answers •1
Math

10/26/23

equation for a line that passes through (0,-8) and (5,-8)
Follows • 1
Expert Answers •1
Math

10/26/23

write the equation that is parallel to y 1 2x 4 and goes through (-4, 7)
Follows • 1
Expert Answers •1
Math Calculus

10/26/23

Calc BC Mean Value Theorem
Let f be a twice-differentiable function such that f'(2)=0. The second derivative of f is given by f''(x)=x2e2-x -1 forUse the Mean Value Theorem on the closed interval [2,4] to show that f'(4)... more
Follows • 1
Expert Answers •2
Math

10/26/23

Is y=4x+3 and y=1/4x-1, parallel, perpendicular, or neither?
Follows • 1
Expert Answers •1
Math

10/26/23

A rectangle has an area of 115 square yards. The width is 3 more than 4 times the length. Find the length and width, in yards, of the rectangle.
Follows • 1
Expert Answers •1
Math

10/25/23

Blank Whiteboards

Hello, I just finished my wyzant math session, and I saved the whiteboards to my computer. However, when I clicked on them, none of the ink/work from the lesson showed up. How can I fix this?
Follows • 1
Expert Answers •1

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.