You are solving quadratic equations. to do so, use the quadratic formula when possible, or factor. 15- for example, you can factor (x+5)(x+3), therefore x=-5,-3. You then go back and plug in your answers to see if you can eliminate any of them.
Answer:
angle-angle similarity theorem
Answer:
b=-19
Step-by-step explanation:
We know that one of the solutions is x=-4/5
That is a solution to x. So if we plug in (-4/5) into the x in the equation, then it should equal 0.
5(-4/5)^2+b(4/5)+12=0
Now, just solve for b.
5(16/25)+b(4/5)+12=0
(16/5)+(4/5)b+12=0
(76/5)+(4/5)b=0
(4/5)b=-(76/5)
b=-19
There are 10 tenths in 1 whole because once you have .9 or 9 tenths then you'd go up 1 more tenth and you'd get 1 whole. there are 100 hundredths in 1 whole we know this because if you have 100 cents you have 1 whole dollar
Answer:
x-2;300000x-600000;6x-12
Step-by-step explanation:
just multiply or divide all terms by a common value