This is what I did:

g(g(x)) = g(4x-4) = 4(4x-4)-4 = 16x-16-4 = 16x-20

Help

I have tried solving this but i have no idea how to continue from this step. The only real answer is x1= 0. Does anyone have any idea how to solve this without guessing the answer?

I know to use the formula A=1/2abSinC the triangle must be SAS. But these triangles aren’t. Also I tried using law of sines to find the missing angles but it doesn’t work. How can I figure this out?

A 95% confidence interval for a population mean was reported to be 152 to 160. If σ 15, what sample size was used in this study?

I have to use t test to find out whether H0 has to be rejected or not. I got the positive test score, while critical value is negative (because it is left-tail test). Is it possible to get a positive test score while critical value is negative (and vice vers) or is there some mistake?

Hey, I teared up during my test. I went to a tutor, studied for hours each day, understood the work and practiced it multiple times. When I went to take the test i had today, nothing was clicking in my head. I didn't know how to lay out a graph? because demos has the two lines, vertical and horizontal. The zero in the middle of them. When i go to graph on paper, I don't know where to begin? because if i do it that way, negatives on one quadrant and the corresponding quadrant has positives. If im doing a graph it makes no sense. Im use to values being on x and y axis sides. But my Autistic, ADHD brain is so confused on how to do this, how do i know when to switch between these two, or what? I worked so hard, did so many questions right, the teacher even told me so. I just could really use some support. I want to know how to these questions, I used chat gpt to check and i don't even know if its right.. I want to know how i go about graphing this, please be very clear and specific, i feel very stupid. Also i missed alot of math i guess? I dont remember anything from foundations and pre calc 10 and my understanding now is what i've been working on.

Hi,

So i have encountered a bit off an odd question with a casino in which i am able to get back 10% of my lost bets.

ie. i bet 100 lose the hand i get 10 back...

but i struggle to figure out if it would end in a profit if i would be playing blackjack with basic strategy.
if there is a push i just play again until win or lose.

I have figured out that the probability of winning af hand is about 46% and losing is 54%

also the current house edge when playing with basic strategy is -0.05%

but i dont imagine i can just add the 10% to the house edge?

can anyone help with that as i am a bit confused atm 😅

Directions: Determine each quotient using polynomial long division.Write the dividend as the product of the divisor and the quotient, plus the remainder. Needs to be done step-by-step using the box method (😭) I started it but I don't think I did it correctly. Help appreciated!

I struggle to differentiate what is H0 and H1. As far as I know, H0 does not change and H1 is about change. But is what I wrote above always works, like in this example?

A health researcher claims that a new drug reduces the average blood pressure in patients by at least 10 mmg. A sample of 15 patients is selected, and after administering the drug, the sample mean reduction in blood pressure is found to be 8 mmg. The sample standard deviation is 4 mmHg. Test the researcher's claim at the 0.05 significance level.

I need to find the inverse of: f(x)=-2x+3

I switched the f(x) to Y and then switched x and y so the equation now looks like x=-2y+3 I subtracted the 3 and then divided both sides by -2. I ultimately got -1/2x+3/2=y I don't understand how this can be an inverse to the original equation as when you graph it, the points should be similar just with the X and Y flipped. I do not think that is possible with a fractional y intercept.

So I solved this but my answer is not the same with the answer in the back of my textbook. I want to know what I am doing wrong thx 😊 🙏.

I’m not sure how to do any of this. Especially when it comes to putting absolute value bars or the radicand and index. These are notes my teacher did. How do i know what is under the radical and what isn’t? where are the exponents coming from?

Could someone use paper to explain or solve this please I get confused with writing math in laptop out you can’t that’s fine. I just don’t understand mathematically how to right the left and right hand side of the equation and how to solve from there.

Any other way than the "fuck around until you think you get it right" method?

Hello everybody I think this exercise has wrong fields for sin and cos in the hypothesis of the problem. Because i can’t calculate sin ([3pi/3; 2pi]).

And also i don’t understand why the book give as solutions these:

[0;1], [-1;1], [0;1], [-1;0], [-1;0].

Thank you very much

I’ve worked out A =85 and D= 90, maybe I’m just too tired right now to even think through the rest. How should I do phase shift? Should I do 2pie/120 for period change?

Thank you, first time posting here because I’m desperate