What is the COMMON DIFFERENCE of the following sequence: 10, 0, -10, -20 (Hint: USE ONLY THE NUMBER IN YOUR ANSWER)
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The diagram shows a 7cm by 6cm rectangle based pyramid. all the diagonal sides - ta, tb, tc and td are length 10cm. m is midpoint of rectangular base. work out height mt to 1 decimal place

Given f(x)= 9x+1 and g(x)=x^3, choose the expression (f*g)(x)

1) in triangle the, what is the measure of angle t (in degrees)? 2) in triangle bat, the measure of angle b is 66∘, and the measure of angle t is 77∘.what is the measure of the exterior angle at a (in degrees)?