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2 years ago

7

The library in Richmond collected $4,170 in overdue fees last year. This year, the library collected $6,672. What is the percent

of increase in the amount collected?

1 answer:

melamori03 [73]2 years ago

4 0

Answer:

not sure just need points and

Step-by-step explanation:

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Solve for x.<br><br> 23x=49<br><br><br> x=827<br><br> x=23<br><br> x = 2<br><br> x = 3

Lelu [443]

Answer:

x = 49/23

Step-by-step explanation:

23x = 49

=> x = 49/23

I wonder why this option is not one of the options given. Please consider to re-check the options you have given to me.

Thank you!

Hoped this helped.

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2 years ago

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3 years ago

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A sleep time of 15.9 hours per day for a newborn baby is at the 10h percentile of the distribution of sleep times for all newbor

Nuetrik [128]

Answer:

option (D) 16.5

Step-by-step explanation:

Data provided:

Sleep time of , X = 15.9 is at the 10th percentile

Standard deviation, σ = 0.5 hour

also,

10th percentile of normal distribution is

Z = F⁻¹(0.10)

or

Z = - 1.28 (Using Standard Normal distribution)

Now,

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or

X = μ + ( σ × Z )

or

μ = X - ( σ × Z )

on substituting the respective values, we get

μ = 15.9 - 0.5 × (-1.28)

or

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Hence, the correct answer is option (D) 16.5

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2 years ago

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MAVERICK [17]

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<span>Since sin is a periodic function, add the periodicity.
</span>
$4x=2\pi n+sin^-^1 ( \dfrac{3}{4} ) ,nEZ 

$

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$x= \dfrac{2\pi n+sin^-^1 ( \dfrac{3}{4} ) }{4}, nEZ$

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3 years ago

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Answer:

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