3 years ago

Three times the sum of a number and two is equal to -9.

Mathematics

1 answer:

Svetllana [295]3 years ago

8 0

Answer:

Step-by-step explanation:

use a equation calculator it really helps

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Your vacation cabin on the lake has three rooms. The bathroom is 12' X 6', the bedroom is 14' X 18' and the great room is 20' X

GarryVolchara [31]

Answer: $9240\ ft^3$

Step-by-step explanation:

Given

Dimension of the bathroom is $12'\times 16'$

Dimension of the bedroom is $14'\times 18$

Dimension of the great room is $20'\times 30'$

Height of the ceiling is $h=10'$

Total area of the cabin

$\Rightarrow A=12\times6+14\times 18+20\times 30\\\Rightarrow A=72+252+600\\\Rightarrow A=924\ ft^2$

Volume of the cabin is $V=A\times h$

$\Rightarrow V=924\times 10\\\Rightarrow V=9240\ ft^3$

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3 years ago

A submarine was traveling along the surface of the ocean and decides to dive. If the dive angle is 28° with the horizontal surfa

Alex_Xolod [135]

Answer:

1.5 nautical miles

Step-by-step explanation:

See the attached diagram.

The submarine starts to dive at point A and diving along AB.

If the distance traveled underwater i.e. AB = 1.7 Nautical miles and C is the point directly above its current position at B.

Then Δ ABC is a right triangle having ∠ BAC = 28° {Given}

So, using trigonometry we can write

$\cos 28 = \frac{AC}{AB} = \frac{AC}{1.7}$

⇒ $AC = 1.7 \times \cos 28 = 1.5$ nautical miles.

Therefore, the surface distance that the submarine travels is 1.5 nautical miles. (Answer)

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3 years ago

Which statement is true?

Zepler [3.9K]

Answer: A

Step-by-step explanation:

Square root of 35 is 5.9161

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3 years ago

What is the exact value of tan -13pi/6 and also the explanation

mihalych1998 [28]

$tan\left(-\frac{13\pi}{6}\right)=-tan\left(2\frac{1}{6}\pi\right)=-tan\left(2\pi+\frac{1}{6}\piright)=-tan\frac{1}{6}\pi=-\frac{\sqrt3}{3}$

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3 years ago

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A group of friends were working on a student film that had a budget of $600. They used $198 of their budget on props. What perce

uranmaximum [27]

Pretty sure it is 33% because 198/600 is 33.

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2 years ago