Maths

Hello, I need help with my DMR! Thanks in advance. :)

A and B are two points on a road. A car travelling along the road passes A when t=0 and maintains a constant speed until t=30 and in this time covers 3/5th of the total distance from A to B. The car then retards uniformly to B. Find the total time taken for the car to travel A to B. I actually got

How do you simplify the following: y^1/2 - y^-1/2 (where ^ indicates 'to the power of') This is an indices question which really has baffled me but as usual, I believe I am overthinking it so would love your guys' perspective on it. Many Thanks in advance

Another Cambridge Non-Calc Qs. Im struggling to do this question under 3 mins without the use of a calculator. Wondering if there is a trick to this to simplify things.

This is part of the A Level Further Maths course so I apologise if this is posted in the wrong place. But I’m struggling with getting to grips with forming and solving recurring relations. If anyone has any good links or sources that will help with the understanding of this chapter it would be much

2z + 1 = z

I'm stuck on my maths assignment, its due in 1 day! If you know the mean of week 1, week 2 and week 1, 2 and 3 together, how to do you find the mean for week 3 alone without the data set. heeeeelp. its on pg 529 question g

- Using the graph EXPLAIN how to write an equation in Point-Slope Form.

If you have a normally distributed set of data from 200 participants, how many people would you expect to have scores within ±1 standard deviation from the mean?

I have been and still am

A, B and C are three points lying in that order on a straight line. A body is projected from B towards A with a speed of 3 m/s. The body experiences an acceleration of 1 m/s towards C. If BC = 20m, find the time taken to reach C and the distance the body has traveled from the moment of projection ti

Is there a method too working this question out?: The highest common factor of two numbers is 4. The lowest common multiple of the same two numbers is 60. What are the two numbers?

Would I be able to solve this question using simultaneous equations?

Hey guys, been looking at this question for a while now. Was supposed to get it done in under 2 mins but it has been significantly longer than that - Any suggestions? My brain is absolutely fried atm so I can't spend much longer on maths - I feel like im missing something out here. Would love a