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3 years ago

12

15 books each of dimension 2 cm x 4 cm x 5 cm are stacked on a she

2 answers:

Elena L [17]3 years ago

7 0

Answer:

30cm

Step-by-step explanation:

Assuming that the thickness of the books is 2cm (This is a reasonable assumption, as books are almost always longer and wider than they are thick, and assuming that the books are stacked flat on top of one another, faces up or down, and not sideways, the question becomes 'What is the height of 15 books stacked on top of one another, if each book is 2cm thick?' The answer to this question is 15*2 or 30.

zalisa [80]3 years ago

4 0

30cm is the correct answer

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When Denise bought gasoline, she paid 27.44$ for 11.2 gallons. Find the price of gasoline per gallon.

olga_2 [115]

Answer:

$2.45

Step-by-step explanation:

just divide 27.44 by 11.2

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3 years ago

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The Richter scale is used for measuring the magnitude of an earthquake. The Richter magnitude is given R = 0.67log(0.37E) + 1.46

natka813 [3]

Answer:

7.9982

Step-by-step explanation:

-The function for an earthquake's magnitude is given by R = 0.67log(0.37E) + 1.46

-E is energy in kwh.

#For 15,500,000,000 kilowatt hours the magnitude would be:

$R = 0.67\ log(0.37E) + 1.46,\ \ E=15,500,000,000 \ kwh\\\\\therefore R=0.67 \ log(0.37\times 15,500,000,000)+1.46\\\\\\=7.9982$

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4 years ago

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Pavel [41]

5/11 times -8

5/11 × -8/1

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-40/11 is your answer

Hope this helps

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3 years ago

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The answer to this equation

12345 [234]

Answer:

x=3

Step-by-step explanation:

We are given the equation

$log5x=log(2x+9)$

This can be rewritten as

$log5x-log(2x+9)=0$

Now using the quotient rule for logarithms we can combine these two

$log(\frac{5x}{2x+9} )=0$

Next we can remove the log by using an inverse operation

$10^{log(\frac{5x}{2x+9} )} =10^0\\\\\frac{5x}{2x+9}=1$

Now we can solve for x

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4 years ago

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AnnyKZ [126]

Answer:

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Step-by-step explanation:

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3 years ago

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