A curve has the equation y = x2 – 14x + 20 The turning point of the curve is at (a, -29)
a) By completing the square, or otherwise, work out the value of a.
Your final line must say, a=..
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On a string instrument, the length of a string varies inversely as the frequency of its vibrations. an 11-inch string has a frequency of 400 cylces per second. find the frequency of a 10-icnch string.

Which inequality has a dashed boundary line when graphed ?

Someone answer asap for ! the following statements are true about the coins calvin and sasha have collected. * calvin and sasha has the same amount of money. * calvin has only quarters. * sasha has dimes, nickels, and pennies * calvin has the same number of quarters as sasha has dimes. * sasha has $1.95 in coins that are not dimes. exactly how many quarters does calvin have?