How you substract 7 from 52

Mathematics

2 answers:

ioda3 years ago

6 0

52-7 which equals 45

lesya692 [45]3 years ago

5 0

DO 52
- 7
which is 45

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Initially a ship and a submarine are stationary at sea level, positioned 1.78km apart. The submarine then manoeuvres to position

poizon [28]

I’m assuming ‘dives further’ means to go directly down

the angle of elevation of the ship from the submarine is equal to the angle of depression of the submarine from the ship, if we assume the sea level is perpendicular to ‘directly down’.

let both of these angles to be = $ when the submarine is at A and ¥ when the submarine is at B (excuse the lack of easily accessible variables as keys)

then this become a simple trig problem:

A)

Let O be the position of of the ship, and C be the original position of the submarine.

therefore, not considering direction

|OC| = 1.78km = 1780m

|CA| = 45m

these are the adjacent and opposite sides of a right angled triangle.

But tan($) = opp/adj = |CA|/|OC| = 45/1780

therefore $ = arctan(45/1780) which is roughly 1.45 degrees,

B)

similarly, noting that |CB| = |CA| + |AB| = 45 + 62 = 107m

tan(¥) = 107/1780

¥ = arctan(107/1780) which is roughly 3.44 degrees

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2 years ago

Write out the sample space for the given experiment. Use the following letters to indicate each choice: W for white, Y for yello

allochka39001 [22]

Answer:

S={WG, WE, WM, YG, YE, YM, BG, BE, BM}

Step-by-step explanation:

There are three possible color choices for the game room (White, Yellow or Blue), and three possible choices for the entertainment center (Gray, Ebony or Maple). This means that there are 9 possible outcomes, therefore, the sample space for the experiment is:

S={WG, WE, WM, YG, YE, YM, BG, BE, BM}

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2 years ago

Will give u brainliest if i get it write hurry!!!

Liono4ka [1.6K]

Answer:

c trust me

and well i just did that 20 mins ago

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3 years ago

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