Mathematics

Z-score or T-test to compare 2 means (10 pts - semi-thorough answer please)

Mind you, Im a biologist, so I only generally know what these 2 tests are. Okay, say you have 2 different groups, control and treated.Each group/sample has 35 individuals (n=35).You know the sample m

Rationalize Each Denominator

1. - 8√2 / √5 2. √1/2 x √16/35 3. √16k^6m^4 / √k 4. ^3√t/√25u2-1. rationalize by multiplying top and bottom by the value of the denominator: √5: (√5)(-8√2) / √5(√5) -8√10 / √25 -8√10 / 5 can

Math help needed please

If the probability of seeing moose in a day in a certain region of Alaska is 0.39, what is the probability of not seeing any moose in a day there?0.611.390.39-0.61-In probability, the values always ra

Find the amount of money in an account after 4 years if $1800 is deposited at 5% annual interest compounded

Find the amount of money in an account after 4 years if $1800 is deposited at 5% annual interest compounded quarterly.-Use A = P(1 + r/n)^(nt) where P = 1800, r = 0.05, t = 4, n = 4

MATH GENIUS NEEDED!!!!!!!!!

I have tried submitting this multiple times and I REALLY need help. PLEASE!!!! I am having trouble with completely factoring these: 1.3x2 + 17x + 10 2.5y8 - 125 3.a2 - 2ab - 15b2 4.4c2 - 12c + 9

Solve for this log equation

2 + 3log2(3x-1)=17 3log2(3x-1)=15 log2(3x-1)=5 Can anyone explain to me what to do after this step? The answer is 11, but Im unsure of how to get there. Any help would be great!-Let log be log to bas

How to find angle of rotation

Our math class is doing transformations again, but Ive forgot how to find the angle of rotation. Help?-Extend one side of the Object shape. Then extend the corresponding side of the Image shape. Fin

Find all values of theta in the interval 0° < theta < 360° that satisfy the equation--->

sine 2theta = sine theta-sin(2t) = sin(t), where 0 Using the result: sin(2t) = 2sin(t)cos(t), we have 2sin(t)cos(t) = sin(t) => 2sin(t)cos(t) - sin(t) = 0 => sin(t)(2*cos(t) - 1) = 0 => sin(t) = 0

What is cos^2 180 + cos^2 0 equal to

2 both parts come to 1 and 1+1 is 2

Math Help ( 10 points to best answer )

Can you solve these math problems. http://contentlaunch.ple.platoweb.com/co… Thanks for the help ( 10 points to best answer-I noticed that you have posted a few math questions within the last hour o

Can someone check my answer to this vector problem

Find a Vwhose magnitude of 29and whose x component is 3 times the y component. Is the answer ?-Maybe Im reading your answer incorrectly. If that is , then the x component is not 3 times the y compone

Does 3y=9/x represent inverse variation, direct variation, or neither

Does 3y=9/x represent inverse variation, direct variation, or neither? Does the equation 3 multiplied by y equals 9 divided by x represent inverse variation, direct variation, or neither?-y = 9/x Inve

Calculus Question Help (Transcendental Functions)

Im kinda stuck on some of these calc concepts dealing with transcendental function, so if anyone could help me understand this Id greatly appreciate it. The question reads: A rectangle has vertices A

Help with trig identities needed

Given that sin x = -3/5, evaluate tan x/2. I know that I have to use trig identities and that tan x/2 = (1 - cos x)/ (sin x), but I get lost and I dont understanding it completely. I dont get any cre

I need help with a Trig Question

A tree has a shadow of 12m. If the suns rays strike the ground at an angle of 27 degrees, how tall is the tree?-Turn this information into a triangle. The tree and the ground make a 90-degree angle. T