3 years ago

The sound intensity of rustling leaves is 100 times

Mathematics

2 answers:

DedPeter [7]3 years ago

8 0

Answer: 20 Decibels

Step-by-step explanation:

I don't know

Grace [21]3 years ago

3 0

Answer:

its 20 decibels

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I really need some help on this question please!

madam [21]

Answer:

2.5

Step-by-step explanation:

I used the process of elimination :

For A and B, you can't have a negative number since it is a positive correlation

For C, 1 as a slope isn't reasonable

3 0

3 years ago

The vertex of this parabola is at (4, -3). When the x-value is 5, the

Marat540 [252]

$The\ vertex\ form:y=a(x-k)^2+h\\\\where\ (k;\ h)\ \ are\ coordinates\ of\ vertex\\------------------------\\y=a(x-4)^2-3\\\\the\ point\ on\ parabola\ (5;-6)\\Put\ x=5\ and\ y=-6\ to\ equation:\\\\a(5-4)^2-3=-6\\a(1)^2=-6+3\\a=-3\\\\Answer:y=-3(x-4)^2-3=-3(x^2-8x+16)-3\\\\=-3x^2+24x-48-3=-3x^2+24x-51$