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
)
If you repost someone with more experiences can help you
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Answer:
What are the statements to choose from? Send me a message with the choices.
Step-by-step explanation:
6x-2y=14
+2y +2y
6x=14+2y
Answer:
D-The first bucket will be completely filled 11 minutes before the second bucket sorry if i am wrong
Step-by-step explanation:
Lets say a fork costs x $. Therefore a spoon costs 2x $.
2x + x = 6. => 3x = 6. => x=2
so:
a) A spoon costs: 2x = 2 × 2 = $4
b) (12 × 4) + (10 × 2) = $68
