3 years ago

Please answer number 40 pls

Mathematics

1 answer:

kvasek [131]3 years ago

4 0

Answer:

A is the answer

Step-by-step explanation:

m¹⁶/4n¹²

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Ico

Anna [14]

Answer:

a = 6

Step-by-step explanation:

-6(2 + a) = -48

it is basically 2 steps

Divide by -6 first

(2 + a) = -48 / -6

2 + a = 8

minus the 2

a =6

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How many more vertices does a rectangular prism have, compared to triangular pyramid?

iVinArrow [24]

The answer is C it’s 5

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Mack wants to calculate the circumference of a circle with a radius of 7 centimeters.

Fofino [41]

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4 years ago

In a research laboratory, a scientist measures the mass of a 1-carat diamond and finds it to be 200 milligrams, measured to the

vlada-n [284]

Answer:

$D=3.5\ gr/cm^3$

Step-by-step explanation:

<u>Density</u>

The density of an object of mass m and volume V is given by

$\displaystyle D=\frac{m}{V}$

It can be expressed in common units like $gr/lt, Kg/m^3, gr/cm^3$ or any other combination of proper mass [M] by volume [V] units.

The data provided in the question is

$m=200\ mg = 0.2\ gr$

$V=0.057\ cm^3$

Thus, the measured density is

$\displaystyle D=\frac{0.2\ gr}{0.057 \ cm^3}$

$\boxed{D=3.5\ gr/cm^3}$

We have expressed the result with 1 decimal place because the mass was measured to the nearest hundred milligrams (or one-tenth grams). Any further decimal is senseless because that precision comes from calculations, not from measurements.

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3 years ago

¿Cuál es el ángulo complementario de 9°?<br>

Ann [662]

Answer:

90 - 9 = 81°

Step-by-step explanation:

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