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Equations have 'solutions', not roots.
Both of the solutions to this quadratic equation are x=5 .
(The expression on the left side is a perfect square. So the graph of the
expression is a parabola whose nose rests on the x-axis at x=5, and
both x-intercepts are at the same point.)
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What button is a shorcut for scientific notation on a scientific calculator?
Some calculators have a "x10x" button.
The period of an ocean wave is 10 seconds what is the wave's frequency?
Period = 1/FrequencySo if we set Frequency = x THEN:10 = 1/x10x = 1x = 1/10IF Period of a Wave is 10 Seconds THEN The Frequency =1/10 or .10
How do you do scientific notation on a calculator?
The answer depends on your calculator but many have shortcut keys for "x10x" or something similar.
The ratio of two numbers is five sixths the second number is sixteen less than twice the first number find both numbers?
Ratio is 5:6, so Let x=the first number, and then 2x-16 = the second number.5/6 = x over (2x-16) : do cross multiplication5*(2x-16) = 6*x10x-80=6x (combine like terms, in this case, the variable x, by subtracting 10x on both sides)-80 = 6x-10 =-4x-80=-4x (to get x by itself, divide negative 4 on both sides)20 = x (negative divided by a negative equals a positive #)2x-16 = 2(20)-16 = 40-16 = 24The first # is equals 20 and the second # is equals 24, 20 to 24 is equals to ratio 5:6.
