Raymond B.

The base of a rectangular box is to be twice as long as it is wide. The volume of the box is 500 cubic inches. The material for the top costs $0.50 per square inch and the material for the sides... more

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Calculus Differential Equations

08/03/21

Need some quick help on a homework problem

Hey,Just need some help on a homework problem that I can't seem to figure out.The volume of a growing cell is given by V(r) = 4/3 pi r^3 where the radius of the cell increases by 1 to 2... more

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Math Calculus Algebra

08/02/21

Math word problem plz help me out

Julia traveled 360 kilometers to get to underground caves. On her way home, she traveled twice as fast. What was Julia's average speed on the way to the caves and on the way back home if the total... more

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Algebra 1 Algebra 2 Prealgebra

08/02/21

write the following numbers in a +bi form

A. (4+4i)/(-4+4i)=B. -3/3i + -4/2i=C. (5i)^3 =

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Geometry Graph Shapes

08/02/21

Need help with this asap pls!!

Create a round object to hang in your window that will touch the midpoints of all four edges of your window (think about what shape your window must be so that a circular object will touch the... more

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Math

08/02/21

A farmer bought a square land. He was told that the land is 12100ft squared. With previous information, what is the length (L) of a side land.

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Physics Prealgebra Physical Science

08/02/21

Projectile Motion

question 1: An object is thrown upward with an initial velocity of 15 feet per second. Its height is given by h= -15t^2 + 60t. After how many seconds does it hit the ground?question 2: A... more

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Algebra

08/02/21

f(x)=-x+1 Evaluate f(x+h)

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Calculus

08/02/21

Prove that f(x)=x is continuous

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Calculus

08/02/21

What is the maximum product of x and y

Let x and y be two real numbers. The sum of x and 4y is 144. Find x and y such that the product of them is the largest. What is the maximum product of these two numbers?

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Math Precalculus

08/02/21

If possible, find an approximate solution to sin(𝜃)=1/4

Just confused on how to approximate this in radians

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Math Precalculus

08/02/21

Find all solutions of the equation tan^5𝑥−9tan𝑥=0. The answer is 𝐴𝑘𝜋 where 𝑘 is any integer,

I thought it was sqrt3 but that was incorrect, I also tried pi/3

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Math Precalculus Trigonometry

08/02/21

2sin(𝑥)cos(𝑥)+√3sin(𝑥)=0

Find all angles in radians that satisfy the equation. For each solution enter first the angle solution in [0,2𝜋) then the period. When 2 or more solutions are available enter them in increasing... more

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Algebra 2 Marth

08/02/21

a merchant has two loans totaling $25,000. the simple interest rates are 7% and 8%. if the annual interest charge on the 7% loan is $520 more than on the 8% loan, how much did he borrow at each rate?

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Geometry

08/02/21

what is the equation of the line through point (-5,5) and perpendicular to y=5/9x-4

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Mathematics

08/02/21

If x is 30°, verify: Sin 2 x= 2 tan x/ 1+ tan²x without using tables.

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Organic Chemistry

08/02/21

Can someone please answer this question please????

Isopropyl alcohol is mixed with water to produce a 33.0%(v/v) alcohol solution.How many milliliters of each component are present in 685mL of this solution? Assume that volumes... more

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Organic Chemistry

08/01/21

Can someone please answer this question please????

How many grams of CaCl2 are needed to make 542.1 g of a solution that is 34.0 % (m/m) CaCl2 in water? Note that mass is not technically the same thing as weight, but % (m/m) has the same... more

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Precalculus

08/01/21

P(t)=184,000e−0.012t, where t is the number of years from the present. What does this model predict the population will be in 6 years?

The population of a certain inner-city area is estimated to be declining according to the model , where is the number of years from the present. What does this model predict the population will... more

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Math Calculus Algebra

08/01/21

Math problem need help

A varies directly with B. If A = 72 when B = 90, find A when B = 190.

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Math Calculus Algebra

08/01/21

Need help with converting math

Use unit multipliers to convert 335 miles per hour to feet per second. Round your answer tothe nearest hundredth.

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Math Calculus Algebra

08/01/21

I NEED HELP CONVERTING MATH

Use unit multipliers to convert 208 miles per hour to feet per second. Round your answer tothe nearest hundredth

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Write an equation in slope-intercept form of the line that passes through (1,4) and (3,10).

One number exceeds another number by 6. One fourth of the sum of the two numbers is two less than the smaller. Find the numbers .

Jose, Stef and Jess sent a total of 132 letters. Stef sent 3 times as many letters as Jess. Jess sent 7 fewer letters than Jose. How many letters did each person send?

Find the dimensions that will make the cost a minimum.

Need some quick help on a homework problem