# Posts by Macky

Total # Posts: 6

**math**

i have 30.6litres of petrol i use one third. Hpw much petrol do i have left

**Math**

(a) T(m) = −22.75 cosπ/6(m − 1) + 52.55 = 48 m =

**Math**

Calculate the average rate of change of the function from θ = π/10 to θ = π/8. (Round your answer to two decimal places.) f(θ) = 9 sin(9θ)

**Chemistry**

Which one of the following pairs of 0.100 mol L-1 solutions, when mixed, will produce a buffer solution? A. 50. mL of aqueous CH3COOH and 25. mL of aqueous CH3COONa B. 50. mL of aqueous CH3COOH and 25. mL of aqueous HCl C. 50. mL of aqueous NaOH and 25. mL of aqueous HCl D. 50...

**math**

171 square meters

**10th grade**

Find the value of the variable and ST if S if between R and T. RS = 7a, ST = 3x, RT = 25 SHOW WORK =P

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