x2-2x-5.25 = 0
When factored:
(x-7/2)(x+3/2) = 0
Therefore: x = 7/2 and also x = -3/2
To solve a quadratic equation use the formula:
x = -b/2a + and also - the square root of b2-4ac over 2a
Whereas in this particular equation: a = 1, b = -2 and c = -5.25
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3×5×5×7=525
(27.8/100)*x=525 so x=1888.48 is the number whose 27.8 equals to 525.ok
525. 5 + 4 = 9 + 67 = 73 + 98 = 171 + 12 = 183 + 34 = 217 + 11 = 229 + 51 = 280 + 90 = 370 + 47 = 417 + 8 = 525.
To find the number that, when multiplied by 5, gives you 525, you would divide 525 by 5. This calculation would be 525 ÷ 5 = 105. Therefore, 105 times 5 equals 525.
525 * 22 = 11550