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waltssillyhat's latest activity
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waltssillyhat replied to the thread sums and and products of roots.ahhhh thank you so much <33
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i found part a, which was -10, but i don't understand how you can use this to state the number of x-intercepts (the answer in the book...
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imagine theres a second graph, y = k (so its just a horizontal line at with y value of k) then the number of points where f(x) = k are...
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waltssillyhat replied to the thread graphs and equations question.OMG thank you so much that makes sense now <333
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PLS HELP!! i don't understand how to use the clues given to find k
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waltssillyhat commented on Socialism's profile post.YESS !!!!
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waltssillyhat reacted to cheesynooby's post in the thread help for part b of this question please 🙏 with
Like.
using the kinematic equation s = ut + (1/2)at^2 (as the acceleration is constant) and the direction the car is moving as the positive... -
waltssillyhat replied to the thread help for part b of this question please 🙏.no i just forgot to convert 90km/h into m/s 😭
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waltssillyhat replied to the thread help for part b of this question please 🙏.oh i just realised that i did this but i just forgot to convert 90km/h into m/s 😭😭
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waltssillyhat replied to the thread question on maximisation and minimisation in geometry.why??
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waltssillyhat replied to the thread question on maximisation and minimisation in geometry.do i have to find the second derivative to test if there is a maximum turning point when dA/dy is equal to 0?
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waltssillyhat posted the thread question on maximisation and minimisation in geometry in Mathematics Advanced.please help with part b!! this is part of curve sketching using the derivative
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i found part a and my answer was a deceleration of 0.6944...m/s, which was correct. i tried solving part b, but i kept getting an answer...
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this is from the kinematics chapter review in the yr 11 pearson textbook
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