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What else can I help you with?
What times what is 12 but adds up to 10?
22
How do you factorise the qaudratic equation xsquared plus x plus x plus 1-5?
-4
What is the perimeter of a right angle triangle whose vertices are at 2 3 and 4 9 and 5 2 giving your answer in surd form?
The lengths of the sides of the triangle are: 2*sq rt of 10, 5*sq rt of 2 and sq rt of 10 The 3 sides added together equals the perimeter which works out as 3* sq rt of 10 plus 5*sq rt of 2 in surd form
What two numbers multiplied equals -121 but when added equals -4?
-125
What factors multiply to -175 and add to -10?
The numbers are: -5 +10 times sq rt of 2 and -5 - 10 times the sq rt of 2
What two numbers add up to -1 and multiply to -1?
The numbers are: -(1+sq rt 5)/2 and (-1+sq rt 5)/2
What two numbers when multiplied equal 80 but when added equal 40?
120
What integer is equal to the product of-7 and the sum of 5 and -1?
There are none because the numbers are: 2+sq rt of 11 and 2-sq rt of 11
What two numbers added together equal -28 and multiplied together equal 6?
The numbers are: (-14 +sq rt 190) and (-14 -sq rt 190) Check: (-14 +sq rt 190)+(-14 -sq rt 190) = -28 and (-14 +sq rt 190)*(-14 -sq rt 190) = 6
What is the simplified radical form of 50?
5 sq rt of 2
How do you calculate the explicit formula and the nth term of the Fibonacci sequence?
(1/sq rt 5)((1+sq rt 5)/2)n - (1/sq rt 5)((1-sq rt 5)/2)n This is based on the golden ratio (1+sq rt 5)/2) because the ratio of 2 Fibonacci terms approaches the golden ratio as the 2 terms used get larger. IE the ratio ot the 10th term to the 9th term is 55/34 = 1.61765 and the golden ratio is approx. 1.61803. When using this formula if your calculator does not round, you will round to get the appropriate Fibonacci number.
What number multiplied by what number gives the product of negative 72 and sum of negative 4?
The numbers are: -2 +2*sq rt 19 and -2 -2*sq rt 19 Check: (-2 +2*sq rt 19)*(-2 -2*sq rt 19) = -72 and (-2 +2*sq rt 19)+(-2 -2*sq rt 19) = -4
