2 years ago

Select the correct solution in each column of the table.

Mathematics

1 answer:

aalyn [17]2 years ago

5 0

Answer:

Can you take a picture of the problem to see if i could help!?

Step-by-step explanation:

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c.) The sonar of a navy cruiser detects a submarine that is 4000 feet from the cruiser. The angle between the water line and the

Kamila [148]

Answer:

2236.77 feets

Step-by-step explanation:

From the attached picture, we are to find x, which is the vertical depth of the submarine.

Using trigonometry based on the illustration in the diagram:

Sinθ = opposite / hypotenus

Sinθ = x (depth of submarine) / distance from ship (4000)

Hence,

Sinθ = x / 4000

θ = 34°

Sin34 = x / 4000

0.5591929 * 4000 = x

2236.7716 = x

Hence, depth of submarine = 2236.77 feets

7 0

2 years ago

I have <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Bdx%7D%7Bdt%7D%20%3D%20%20%5Cfrac%7B5%7D%7Bx%7D%20" id="TexFormula1" title=

mojhsa [17]

$\bf \cfrac{dx}{dt}=\cfrac{5}{t}\quad ,\quad x(0)=7\to 
\begin{cases}
f(t)=0\\
t=7
\end{cases}\\\\
-----------------------------\\\\
\displaystyle \int \cfrac{5}{t}\cdot dt\implies 5\int \cfrac{1}{t}\cdot dt\implies 5ln|t|+C= f(t)
\\\\\\
\textit{now, we know when f(t)=0, t=7}\implies 5ln|7|+C=0
\\\\\\
C=-5ln(7)
\\\\\\
thus\implies \boxed{5ln|t|-5ln(7)=f(t)=x}$

notice |7| 7 is positive, so we can simply remove the bars and use 7 by itself

6 0

2 years ago

in a box of 36 pencils 20 are sharpened what is the ratio of sharpened pencils to unsharpened pencils

OleMash [197]

Answer:

20 : 16

or if you have to reduce then the answer is 5 : 4

Step-by-step explanation:

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2 years ago

Which of the following could be a measurement on a scale drawing that has a scale of 2:5? 2 in.:5 ft

12345 [234]

It's the1st: 4 cm/10 cm because:
4/10 = 2/5 . and because they have the SAME UNIT (cm)

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3 years ago

What will the y-coordinate/value be for A' (A

Nataliya [291]

what are the coordinates if you tell me that I can help you

3 0

2 years ago