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bogdanovich [222]
3 years ago
13

a bell tolls every 10 minutes. another bell tolls every 15 minutes. both bells toll at 6:00pm. they will toll together at what t

ime
Mathematics
2 answers:
lidiya [134]3 years ago
8 0
The answer is 6:30 pm
Ne4ueva [31]3 years ago
4 0
Basically, we need to find the lowest common multiple of 10 and 15.

that multiply would be 30. That means that the bells will ring together in 30 minutes.
So 30 minutes from 6 p.m. is 6:30 p.m. <==
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Olin [163]

Answer:

The graph has only one x-intercept

Step-by-step explanation:

we have

f(x)=-4x^2+12x-9

we know that

The discriminant of a quadratic equation of the form

ax^{2} +bx+c=0

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D=b^{2}-4ac

in this problem we have

f(x)=-4x^2+12x-9

so

a=-4\\b=12\\c=-9

substitute

D=12^{2}-4(-4)(-9)

D=144-144

D=0

The discriminant is zero

That means ----> The quadratic equation has one real solution

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1. What is the area of the trapezoid? The diagram is not drawn to scale. (1 point)
Dmitry [639]

Answer:

60

Step-by-step explanation:

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\frac{1}{2} (7+17) * 5

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Step-by-step explanation:

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Alex_Xolod [135]
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