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1. ### [Functions Challenge] If f(2a-b) = f(a)∙f(b) for all a and b, and the function is never equal to zero, find the value of f(5) (Awarding BA)?

If the dot is multiplication, then f(2x -x) = f(x) * f(x) f(x) = f(x) * f(x) u = u^2; could solve by quadratic formula to find u = 0 or 1. Cannot be 0. f(x) = 1 assuming f(x) is restricted to real and complex numbers.

2 Answers · Science & Mathematics · 28/06/2020

2. ### I am seriously blanking right now and can't find my notes . How do you find the anti derivative of this problem?

find A & B so that A / ( 3 - x ) + B / ( 3 + x ) = 1/ (9 - x²).......partial fractions

4 Answers · Science & Mathematics · 29/04/2020

3. ### Can you help with Algebra please? The notes i took didn't help, and i asked my class mates, and they don't understand it either. ?

(a) f(\$339) = 0.65(\$339) = \$220.35 g(\$339) = 0.08(0.65 (\$339)) = \$17.63 h(\$339) = (f+g)(\$339) .............= f(\$339) + g(\$339) .............= \$220.35 + \$17.63 .............= \$237.98.........................ANS ---------------------------- (b) The new lawn mower is \$237.98; his neighbor's lawn mower is \$250...

4 Answers · Science & Mathematics · 24/04/2020

4. ### Determine​ (a) the area and​ (b) the perimeter of the quadrilateral. Note that the figure is not drawn to scale.?

Height of trapezoid (assuming bases are parallel) is (1/4)(12) = 3 in. A = (1/2)(h)(b1 + b2) = (1/2)(3)(12 + 4) = (3/2)(16) = 24 in^2 P = 5 + 5 + 4 + 12 = 26 in.

2 Answers · Science & Mathematics · 13/08/2020

5. ### How fast is the tip of her shadow moving when she is 45 ft from the base of the pole?

Note : I haven't done a calculus course before and I've only done this in Spirit...6) / (s) s = 27 ft. Ok so now we have a fully labelled diagram (minus the rates of change) Note 2: Right, so if I haven't made a mistake yet, then here is where it goes downhill...

3 Answers · Science & Mathematics · 17/10/2019

6. ### [Calculus] Volume of Shapes ?

(1) Note that this is a part of the circle x^2+y^2=9. The question is...

1 Answers · Science & Mathematics · 05/02/2020

7. ### Can anyone help me with statistics/probability? ?

Problem 1: a. Note that in this case, it's important that we use what we call a two-tailed test...

1 Answers · Science & Mathematics · 13/08/2020

8. ### need help with sequences and series question!?

Simple, make note of your rules for logarithms, i.e. log (a^b) = b log (a). ...

3 Answers · Science & Mathematics · 20/02/2020

9. ### Math problem help, please?

note that the set of all rational functions contains as a subset  all the...

4 Answers · Science & Mathematics · 10/07/2020

10. ### What are the dimensions of the matrix?

note dimension is a x b where a= row,  b= column   The dimension of the matrix is 4 x 2...

3 Answers · Science & Mathematics · 26/09/2020