idkhowtodomath

Use the symmetry of each quadratic function to find the maximum or minimum points. c. y=x^2+4x-21

Can someone please solve them,I just want to see examples,i will do the next 10 myself!!THX! 1)given that tan θ = 2/3 and that θ is acute,find the exact value of: a)sin θ b)cos θ c)sin^2 θ 2)given that sin given that tan θ = (√2)/5 and that θ is acute,fin...

I really dk how to do them,i have spend hours doing it Can somebody please solve and if possible show the steps thx,just 3 questions __ 3)Given that tan theta = -✓3 and that 90 degree ≤ delta ≤ 180 degree,find the value of: a) tan delta b)cos delta 5)Give...

Given that (24z^3)^2/27x12z = 2^a 3^b z^c ,evaluate a,b and c.

Can anyone use these two questions as an example,I will do the rest,thank you! 1) y=x^2-3x, for -2≤x≤5. (Scales 2cm for x, 1cm for y) Find: a) gradient of the tangent to the curve at x=3. b) gradient of the tangent to the curve at x= -1. c) value of x whe...

Can someone please do this question as example,thanks Idk what the l symbol is called, it makes everything positive 1) r and s are two vectors and l r l = 5 Find the value of l r + s l when: a) s = 5r b) s = -2r c) r is perpendicular to s and l s l = 5 d)...

oh yea for question 1 a) is sin delta sorry

thank you so much for the explanation teacher Reiny!