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2 years ago

What is the density of an object 8g /cm3 and mass is 200g

Mathematics

1 answer:

pav-90 [236]2 years ago

3 0

The density would be 1560.7 lb/cu ft.

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Explain how to find the surface area of a can of fruit with a height of 80 mm and a diameter of 60 mm. Give the area in your exp

sdas [7]

Answer:

$S=6600\pi \text{ mm}^2$

$S\approx 20724 \text{ mm}^2$

Step-by-step explanation:

A can of fruit is geometrically a cylinder.

We are talking about the <u>surface area of a cylinder</u>:

$S=2\pi rh+2\pi r^2$

$\pi \approx 3.14$

$r: \text{radius}$

$h: \text{height}$

Factoring, we have:

$S=2\pi r (h+r)$

Calculating the surface area of the can of fruit:

$S=2\pi (30) (80+30)$

$S=2\pi (30) (110)$

$S=6600\pi$

$S\approx 20724 \text{ mm}^2$

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3 years ago

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What is 57 times 313

loris [4]

The answer is 17,841 when you multiply 57 and 313.

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3 years ago

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Tina described four triangles as shown below:

lana [24]

All triangles are unique.
The question should read, which two of the 4 given triangles are similar.<span>the intended answer is likely triangle D, because there are infinitely many different triangles described by D, namely all equilateral triangles.</span>

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3 years ago

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Complete the sentence 0.04 is 1/10 0f

soldier1979 [14.2K]

For this case we can define the following variable:

x: unknown number

We write the equation that models the problem:

$(\frac{1}{10}) * x = 0.04$

From here, we clear the value of x.

We have then:

$x = 0.04 * 10\\x = 0.40$

Answer:

Completing the sentence we have:

0.04 is 1/10 of 0.40

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3 years ago

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Evaluate this integral. I'm not sure how to evaluate integrals with absolute values.

SOVA2 [1]

Answer:

Step-by-step explanation:

The first step is to understand what the integrand looks like. (See the graph below.)

It is -1 for x < 0 and +1 for x > 0. Thus, the value of this integral is ...

$\int\limits^0_{-1} {-1} \, dx + \int\limits^2_0 {1} \, dx=-1+2=1$

_____

Essentially, you treat the absolute value as a piecewise linear function. This is the same way you treat an absolute value in any equation or inequality.

Here, this means you divide the integral into two parts: one where the integrand is -x/x, and one where it is +x/x.

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3 years ago