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2 years ago

This one is a doozy for me, need help please

Mathematics

2 answers:

Maksim231197 [3]2 years ago

4 0

Answer:

The correct answer is B

Step-by-step explanation:

Kinda complicated to explain, if you need me to then comment and I'll do it

Scorpion4ik [409]2 years ago

3 0

Answer is option B,in my opinion

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Please help me out! I tried to do it but I got it wrong.

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This may or may not be right.

You know that they are a graduate, and the total number of graduates are 2610.

The amount of graduates receiving financial aid is 1879.

The probability that a graduate student is on financial aid is: 1879/2610 = 0.7199 or 72%

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3 years ago

If these two shapes are similar, what is the measure of the missing length r?

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4 years ago

What is the exact area of a circle with a diameter of 64 m?

torisob [31]

The answer would be 45

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3 years ago

Read 2 more answers

A lighthouse is located on a small island 2 km away from the nearest point P on a straight shoreline and its light makes four re

ddd [48]

Answer:

62.8 km per min

Step-by-step explanation:

Let the diagram of this situation is shown below,

In which $\theta$ is the angle made by light to the straight line joining the lighthouse and P,

∵ Light makes 4 revolutions per minute.

Also, 1 revolution = $2\pi$ radians

So, the change in angle with respect to t ( time ),

$\frac{d\theta}{dt}=8\pi\text{ radians per min}$

Let x be the distance of beam from P,

$\implies \tan \theta = \frac{x}{2}$

Differentiating with respect to x,

$\sec^2 \theta \frac{d\theta}{dt}=\frac{1}{2}\frac{dx}{dt}$

$(1+\tan^2 \theta) (8\pi) = \frac{1}{2}\frac{dx}{dt}$

$(1+\frac{x^2}{2^2})(8\pi) = \frac{1}{2}\frac{dx}{dt}$

If x = 1 km,

$(1+\frac{1}{4})8\pi =\frac{1}{2}\frac{dx}{dt}$

$\frac{5}{4}8\pi = \frac{1}{2}\frac{dx}{dt}$

$\implies \frac{dx}{dt}=\frac{80\pi}{4}= 20\pi\approx 62.8\text{ km per min}$

Hence, the beam of light moving along the shoreline with the speed of 62.8 km per min

7 0

4 years ago

Can someone help me please and show work

Effectus [21]

The answer is d and the reason why is because if u are adding money the only logical answer is the one thats higher than the starting number

4 0

3 years ago