3 years ago

Which of the following is true regarding the solution to the logarithmic equation below?

Mathematics

1 answer:

elena-14-01-66 [18.8K]3 years ago

8 0

Answer:

Below in bold.

Step-by-step explanation:

log2(x + 11) = 4

so x + 11 = 2^4

x + 11 = 16

x = 5.

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What is the minimum force required to prevent a ball weighing 22.6 lb from rolling down a ramp which is inclined at 39.0 degrees

Alona [7]

The correct answer is 14.2 lb which is choice D.

Let:

F = minimum force required to prevent ball from rolling down the ramp

The formula will be:

F = w * sin theta

F = w * sin (39 degrees)

F = 22.6 * sin (39)
= 14.2 lb (this is rounded to the nearest tenth)