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Sav [38]
2 years ago
5

What is the density of a 60-gram pyramid with rectangular base 5 cm x 7 cm and height 9 cm?

Mathematics
1 answer:
JulijaS [17]2 years ago
4 0

Answer:

0.571428571429 grams per cm³

Step-by-step explanation:

density = mass/volume

Let’s calculate the volume V of the pyramid :

V = (1/3)×base×height

   = (1÷3)×(5×7)×9

   = 105 cm³

Then

The density = mass/volume

                    = 60÷105

                    = 0.571428571429

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belka [17]

Answer:   The river is 148.3 feet wide.

Step-by-step explanation:

Alright, lets get started.

Please refer the diagram I have attached.

The triangle formed is a right triangle.

Using SOH CAH TOA

tan 56 = \frac{x}{100}

Multiplying 100 in both sides

x = 100 \times tan56

x = 100 \times 1.4826

x = 148.26

Rounding to the one decimal place

x = 148.3

Hence river is 148.3 feet wide.   .............. Answer

Hope it will help :)

6 0
3 years ago
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Answer:

the bottom

Step-by-step explanation:

4 0
3 years ago
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Zanzabum

Answer: 8 x (10 to the power of -7)

Step-by-step explanation:

Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the  

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If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.

6 0
2 years ago
The line contains the point (-4,-4) and is perpendicular to a line with a slope of 5/2 . The equation is this line is ?
Trava [24]

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Step-by-step explanation:

since they are perpendicular,

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now,

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Decimal multiplier by 1.7%
Svet_ta [14]

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Step-by-step explanation:

hope this helps!

please give me a brainliest!!<3

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