3 years ago

Evaluate: 3 *-2 is an exponent, will give brainliest

Mathematics

1 answer:

natita [175]3 years ago

6 0

So i dont get your question. do you need to find out what 3x10^-2 is?

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Alban drove 1200 miles in 30 hours. What was his rate of travel in miles per hour?

saul85 [17]

Your answer is 40. Simply divide 1200 by 30 and you will get 40.

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3 years ago

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The satang coin from Thailand has a radius of about 7 mm

Veseljchak [2.6K]

Given:

The satang coin from Thailand has a radius of about 7 mm.

We need to determine the diameter and circumference of the coin.

Diameter of the coin:

The diameter of the coin can be determined by multiply the radius by 2.

Thus, we have;

$d=2r$

Substituting r = 7, we get;

$d=2(7)$

$d=14 \ mm$

Thus, the diameter of the coin is 14 mm.

Circumference of the coin:

The circumference of the coin can be determined using the formula,

$C=\pi d$

Substituting $\pi=3.14$ and $d=14$ , we get;

$C=(3.14)(14)$

$C=43.96 \ mm$

Thus, the approximate value of the circumference of the coin is 43.96 mm

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4 years ago

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Medians $\overline{dp}$ and $\overline{eq}$ of $\triangle def$ are perpendicular. if $dp= 18$ and $eq = 24$, then what is ${de}$

monitta

Denote by M the point of intersection of the medians.
Denote also the distance DM by x and the distance QM by y.
From the median properties of triangles we know that
$y=\frac{1}{3}\timesFQ=\frac{1}{3}\times24=8$
Also,
$x=\frac{2}{3}\times DP=\frac{2}{3}\times 18=12$
Since the medians are perpendicular, we deduce that:
$x^2+y^2=DQ^2\iff DQ=\sqrt{8^2+12^2}=14.4$
Then, since $DE=2\times DQ\text{ then }DE=2\times 14.4=28.8$