1 Move all terms to one side.
{x}^{2}+15x+45=0
x
2
+15x+45=0
2 Use the Quadratic Formula.
x=\frac{-15+3\sqrt{5}}{2},\frac{-15-3\sqrt{5}}{2}
x=
2
−15+3
5
,
2
−15−3
5
3 Simplify solutions.
x=-\frac{3(5-\sqrt{5})}{2},-\frac{3(5+\sqrt{5})}{2}
x=−
2
3(5−
5
)
,−
2
3(5+
5
)
12/15÷1/5
when dividing fractions, all you have to do is multiply the first number by the second number's reciprocal
(reciprocal is denominator over numerator)
12/15÷1/5
12/15×5/1
remember when multiplying fractions it's the the two numerators multiplied together over the two denominators multiplied
12/15×5/1
60/15
4
The answer is 4
It would be Adjacent/hypotenus which is 36/39 and when simplified the answer is 12/13
Find a common denominator...
1/5 = 7/35
7/35 = 7/35
6/25 = ... can't have 35 as a denominator. Not equivalent.
Answer:
DONE
Step-by-step explanation:
HE CHARGES $145 PER HOUR
1 HOUR=$145
2 HOUR= $145*2= $290
3 HOUR= $145*3= $435
4 HOUR= $145*4=$580
