What is -8 -16 A -8 B 8 C 16 D

Mathematics

1 answer:

In-s [12.5K]3 years ago

3 0

Answer:

The answer to this question is C) 8.

Here's something you should remember when you get a question with two negative numbers, it always adds up to a positive. For example, when you multiply two negative numbers, the answer would be a positive number. And when you add two negative numbers, your answer is a positive number again.

Step-by-step explanation:

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seraphim [82]

-0.3 is the. correct answer.

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What is the angular velocity of a 6–foot pendulum that takes 3 seconds to complete an arc of 14.13 feet? Use 3.14 for π

iren2701 [21]

1) Calculate the whole arc (complete circumference):

Circumference = 2π*radius

radius = 6 foot

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2) Calculate the time to make a whole round, by making a proportion with the two ratios:

ratio 1 = x / 37.68 =

ratio 2 = 3 / 14.13

ratio 1 = ratio 2 =>

   x 3s
---------- =   -----------
37.68 ft    14.13 ft

=> x = 3 * 37.68 / 14.13 = 8 s

3) Calcuate the angular velocity as the 2π rad (which is the total angle of a circle) divided by the time.

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3 years ago

An executive invests $26,000, some at 8% and some at 6% annual interest. If he receives an annual return of $1,860, how much is

S_A_V [24]

Let x = amount invested at 8%
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0.08x + 0.06(26000 - x) = 1860

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