6,902 Answered Questions for the topic Math Help

What is the conditional probability that B does not occur given that A does not occur?

The probability of A is 0.25. The conditional probability that A occurs given that B occurs is 0.25. The conditional probability that B occurs given that A occurs is 0.4. ﻿(a) What is the... more

Given some zeros of a polynomial function find all zeros of the function

P(x) = 2x^4 - x^3 - 27x^2 + 16x - 80, with zeros: 4, -4

14d

Find the integral?

Evaluate the integral 7/(w^2+3w+3) dw.Here's my work:I've completed the square and came up with this:∫ 7/[(w+3/2)^2+3/4] dw----------------------------------where u=w+3/2 and du=dw.So ∫ 7/(u^2+3/4)... more

18d

Simplify: 2(sin^6(a)+cos^6(a))-3(sin^4(a)+cos^4(a))-sin(2π-a)+1

PLEASE HELP ME WITH THIS TRIG!!!! THANK YOU IF YOU DO!!!!

09/08/19

Suppose A and B give the populations of two states where A > B. Compare the expressions and tell which of the given pair is greater or if the expressions are equal.

b/a+b and 0.5a + 13c and b + 13c, where c is the population of the third statea - b/2 and a - b/2a + b and 2b5(a + b) and (a + b)5

09/03/19

(e^(2x+2)/e^2=4 How to solve

Need help solving this problem. I need to solve for x (e^(2x+2)/e^2=4

08/25/19

AMDM Question (Mathmatics)

Is B correct? I've already taken my first attempt on this assignment, but It said it was wrong. Can someone please let me know? I would greatly appreciate it.A new cars salesperson, sold an average... more

07/21/19

Help with word problem

The James family and the Robinson family each used their sprinklers last summer. The water output rate for the James family sprinkler was 20 L per hour. The water output rate for the Robinson... more

07/03/19

An elevator has a placard stating that the maximum capacity is 2625 lb— 15 passengers.​

So, 15 adult male passengers can have a mean weight of up to 2625 / 15 =175 pounds. If the elevator is loaded with 15 adult male​ passengers, find the probability that it is overloaded because they... more

06/27/19

If Tan^2(t)-Sin^2(t)=Sin^a(t)/Cos^b(t), then the positive power a= ALSO the positive power b=

So, I know the first two stepssin^2(t)/cos^2(t) -sin^2(t)sin^2(t)-sin^2(t)cos^2(t)/(cos^2(t)I have no idea what to do after this? I looked and it said to factor but I have no idea why you factor... more

06/04/19

Binomial Experiment

Consider a binomial experiment with n = 9 trials where the probability of success on a single trial is p = 0.15. (Round your answers to three decimal places.)(a) Find P(r = 0).  (b)... more

05/03/19

Solve the following logarithmic equation

2log(base 3)(x-4)+log(base 3)3=3

04/26/19

The radioactive element​ carbon-14 has a​ half-life of 5750 years. A scientist determined that the bones from a mastodon had lost 76.17​% of their​ carbon-14. How old were the bones at the time... more

04/11/19

I'm having trouble solving this trig problem: 1/1+tan^2x + 1/1+cot^2x = 1..any help?

I tried looking it up, but I can't use any new trig identities for my problem, I can only use: tanx= sinx/cosxsecx=1/cosxcotx=cosx/sinxcscx=1/sinx

03/29/19

03/26/19

Trigonometry problem

Suppose you are solving a trigonometric equation for solutions over the interval [0,2π)​, and your work leads to ﻿2x = 2π/3, 2π, 8π/3. What are the corresponding values of​ x?

03/07/19

what is 5x + 2y = 23 / -4x - y = -19

-4x - y = -19 is supposed to be underneath the 5x + 2y = 23

02/27/19

Can't figure it out

Combine the like terms in the expression:2b2+7m+6b2−5mWrite your answer as an expression.

02/26/19

What is the sum of money?

3/5 of a sum of money is .60c. What is the sum of money?Would this be correct:3/5*x=602/5*x=?3/5*100=602/5*100=4040+60=100?s

02/23/19

02/13/19