diego j

can someone please help me with this problem, can someone explain this problem clearly with steps

A graphing calculator is recommended.

Find the maximum and minimum values of the function. (Round your answers to two decimal places.)

y = x - 4sin x, 0 <=x<= 2π

how do you solve this type of problems i am confused

A graphing calculator is recommended.

Graph the polynomial in the given viewing rectangle. Find the coordinates of all local extrema. State each answer correct to two decimal places. (If an answer does not exist, enter DNE.)

y = −x2 + 6x, [−4, 12] by [−50, 30]

i have to put it in complex form i am having trouble this is what i understand

square root -4 become 2i and -6 square root become i square root 6 from there i get stuck can some one help me

A typical diet in the United States provides 15% of the calories from protein, 45% from carbohydrates, and the remainder from fats. Calculate the grams of protein, carbohydrate, and fat to be included each day in diets having the following caloric requirements

a): 1200kcal

b);1900kcal

c);2600kcal

the answer is 120/169 i understand that i have to use the double angle formulas i think the first one is the sin formula of double angle then i do not understand the rest can someone help me

Amanda Bryce and Corey enter a race in which they have to run, swim and cycle over a marked course.Their average speeds are given in the table below. Corey finishes first with a total time of 2hrs 21min. Amanda comes in second with a time of 3hrs 9min. Bryce finishes last with a time of 3hrs 42min Find the distance (in miles) for each part of the race.

Running Swiming Cycling

Amanda| 10 4 10| Bryce |7 (1/2) 6 15| Corey | 10 15 40|

matrices format | 10 4 10|

|7 (1/2) 6 15|

|10 15 40|

need help with question tried to solve it but not getting the answer

run=_____miles

swim=______miles

cycle=_______miles

please help

an infectious strain of bacteria increases in number at a relative growth rate 200% per hour. when a certain critical number of bacteria are presented in the blood stream, a person becomes ill. If a single bacterium infects a person the critical lever is reached in 24 hours. how long will it take for the critical level to reach if the same person is infected with 10 bacteria

need help setting the problem (i know that is going to be in a=pe^rt) need help inputing the variables

the answers is 22.85 hrs

an open box is to be constructed from a piece of cardboard 20 cm by 40 cm by cutting squares of side lenght x from each coner and folding up the sides

A) express the volume V of the box as a function of x

B) what is the domain of V

C) draw a graph of function V and estimate the maximum volume for such box

i understand the first one but need help in the other two B, C

first one is V(x) = 4x^3-120x^2+800x

the owner of the store sells raisins for $ 3.20 per pound and nuts for $ 2.40 per pound. He decides to mix the raisins and nuts and mixes and sell 50lb of the mixture for $ 2.72 per pound. What quantities or raisins and nuts should be used

need help with this problem

will the answer be 210y^8 ???

Factor: x^8+4x^6 y +6x^4 y^2 +4x^2 y^3 + y^4 using Binomial Theorem

is in (a+b)^n

need help with two problems

i know that polar is r^2= square rooth x^2+y^2 and y/r =tan and rectangular is rcos(theta) , ysin(theta)

the problems are R=7 solve polar to rectangular

second problem is r= 1/ sin theta - cos theta solve polar to rectangular

need help setting up the problem

tan (x) / csc (x) = sec (x) - cos (x)

find sin x /2 cos x /2 and tan x /2 from the given information sin(x) =3/5

need help setting up this problem

World population: The population of the world is was 5.7 billion in1995 and the observed relative growth rate was 2% per year

by what year would the population double

by what year with it triple

the answer is 2029 and 2049 need help with setting up the problem

a rectangular box with a volume of 60ft cube has a square base. Find a function that models its surface area S in terms of the length x of one side of its base

the answers is S(x) 2x^2 + 240/x, x>0

do not understand the problem

answer is r(a)= square root A / pi , a>0 don't understand how it came out as an answer

a jewelry has five rings each weighing 18g made of an alloy of 10% silver 90% gold. He decides to meltdown the rings and add enough silver to reduce the gold content to 75% how much silver sholud be added

the town of foxton lies 10 mi north of an abandoned east-west road that runs through grimley. the point on the abandoned road closest to foxton is 40 mi from grimley county officials are about to build road connecting the two towns. They have determined that restoring the old road would cost $100,000 per mile. whereas building a new road will cost $ 200,000 per mile , how much of the abandoned road should be use if the officials tend to spend exactly 6.8 million would it cost less than this amount build a new road connecting the towns directly

need help setting up the problem