What value of Q will make the expression 4x2 + 5x + Q a complete square?

if 12 = x, find x where e = 12

What is the different between 0.007685 correct to three significant figures and 0.007685 correct to four places of decimal?

Oke deposited ₦800.00 in the bank at the rate of \(12\frac{1}{2}\%\) simple interest. After some time the total amount was one and half times the principal. ...

Simplify \( \sqrt[3]{(64r^6)^{\frac{1}{2}}} \)

The prime factors of 2520 are

If a : b = 5 : 8, x : y = 25 : 16; evaluate \( \frac{a}{x} : \frac{b}{y} \)

Evaluate 2700 000 x 0.03 + 18 000

Which of the following is in descending order?