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3 years ago

Find the product -12 • (-2) A. 10 B. 24 C. -24 D. -14

1 answer:

6 0

12 x 2 = 24

When you multiply two negative numbers, the answer will be a positive
When you multiply one negative and one positive, the answer will be negative.

Using that rule:

(-12)(-2) = 24

24 is your answer

hope this helps

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The diameter of a circle is 10 in. Find its area in terms of pie.

kumpel [21]

Answer:

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Step-by-step explanation:

Area of the circle = pi r^2

= pi 5^2

=3.14 *25

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7 0

3 years ago

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4 years ago

Solve for x. round to the nearest hundredth if necessary.

iris [78.8K]

Answer: $x=11.47$

Step-by-step explanation:

Given the angle of 55 degrees, you know that the adjacent side is "x" and the length of the hypotenuse is 20.

Therefore, you need to remember the following identity:

$cos\alpha=\frac{adjacent}{hypotenuse}$

Then, knowing that:

$\alpha=55\°\\adjacent=x\\hypotenuse=20$

You need to substitute these values into $cos\alpha=\frac{adjacent}{hypotenuse}$ :

$cos(55\°)=\frac{x}{20}$

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