Find the tenth term in the sequence using the rule:
an = n2 - 12

Complete the solution of the equation. find the value of y when x equals to 28 x+3y=28

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.

Find the magnitude, correct to two decimal places, made by each of the following with positive direction of the x axis a) y= x the answer is 45° but i don’t know how