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What is two third of 45?
2/3 of 45 = 45*2/3 = 30
1 third of 30?
10 is a third of 30
What is 2 to the third power minus 30 divided by 5 plus 9?
11
Which is more one third or 30 percent?
one third is greater than 30% because one third in percent form is 33%
How do you find the roots of quadratic equations that are not ending in zero?
if you have 3*x^2 + 2 * x + 3 = 4, you can rewrite it to3*x^2 + 2 * x - 1 = 0edit:example:2x**2-15x-15=15+2x+x**2subtract away from one side2x**2-15x-15-x**2=15-2x+x**2-x**2x**2-15x-15=15-2xx**2-15x-15-15=15-2x-15x**2-15x-30=-2xx**2-15x-30+2x=-2x+2xx**2-13x-30=0Factor (long way):-mulitply first and third terms:1*-30=-30-factors of -30 that add up to second term:30=1*2*3*5-30=-1*30, 1*-30-30=-2*15, 2*-15-30=-3*10, 3*-10-30=-5*6, 5*-6-rewrite polynomial:x**2-13x-30=0x**2-15x+2x-30=0-factor sets of terms (ie first and second, third and fourth):x**2-15x+2x-30=0x(x-15)+2(x-15)=0-factor:x(x-15)+2(x-15)=0(x+2)(x-15)=0-determine roots:x+2=0x+2-2=0-2x=-2x-15=0x-15+15=0+15x=15Factor (short way):x**2-13x-30=0-because the first term is x**2 you can:1. Take third term and factor, choose factors that add up to second term:30=1*2*3*5-30=-1*30, 1*-30-30=-2*15, 2*-15-30=-3*10, 3*-10-30=-5*6, 5*-62. Place factors in (x+a)(x+b) where a and b are factors of the third term whose sum is the second term(x+2)(x-15)3. Determine roots:x+2=0x+2-2=0-2x=-2x-15=0x-15+15=0+15x=15
