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bulgar [2K]
2 years ago
15

PLEASE HELP I don’t understand DONT USE ME FOR POINTS

Mathematics
1 answer:
katrin [286]2 years ago
7 0

Answer:

d = 364 feet

Step-by-step explanation:

Given that,

The pressure at depth d is given by :

P=13+\dfrac{8}{13}d

Pressure under water is found to be 237 pounds per square foot

Now, put P = 237 to find d. So,

237=13+\dfrac{8}{13}d\\\\237-13=13+\dfrac{8}{13}d-13\\\\224=\dfrac{8}{13}d\\\\d=\dfrac{224\times 13}{8}\\\\d=364\ ft

So, the depth is equal to 364 feet.

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Sean needs to figure out how much paint he needs in order to cover all of the sides of his ramp. what is the surface area of the
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Answer:

210

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find the area of each rectangle and add it to the area of both the triangles

9(6) +5(9) +9(7)+(6(8))/2 + (6(8))/2

4 0
3 years ago
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The ratio of pounds of vegetables to pounds of protein on the dinner plate is 5 to 2. IF
leva [86]

Answer:

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Step-by-step explanation:

25 is to 5    as   x is to 2

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8 0
2 years ago
two points on the same side of a tree are 65 feet apart. the angles of elevation of the top the tree are 21 19 from one point an
zloy xaker [14]
The question is find the height of the tree, given that at two points 65 feet apart on the same side of the tree and in line with it, the angles of elevaton of the top of the tree are  21° 19' and 16°20'.

1) Convert the angles to decimal form:

19' * 1°/60' = 0.32° => 21° 19' = 21.32°

20' * 1°/60' = 0.33° => 16° 20' = 16.33°

2) Deduce the trigonometric ratios from the verbal information.

You can form a triangle with

- horizontal leg  x + 65 feet
- elevation angle 16.33°
- vertical leg height of the tree, h

=> trigonometric ratio: tan (16.33) = h /( x + 65) => h = (x+65) * tan(16.33)

You can form a second triangle with:

-  horizontal leg x
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- vertical leg height of the tree, h
 
=> trigonometric ratio: tan(21.32) = h / x  => h = x * tan(21.32)

Now equal the two expressions for h:

(x+65)*tan(16.33) = x*tan(21.32)

=> x*tan(16.33) + 65*tan(16.33) = x*tan(21.32)
=> x*tan(21.32) - x*tan(16.33) = 65*tan(16.33)
=> x = 65*tan(16.33) / [ tan(21.32) - tan(16.33) ] = 195.73 feet

=> h = 195.73 * tan(21.32) = 76.39 feet.

Answer: 76.39 feet
5 0
3 years ago
To make hummingbird nectar you must use 4 cups of water and 1 cup of sugar. What is the ratio of water to sugar?
Reika [66]
The ratio of water to sugar would be 4:1 or 4 to 1.

Hope this helps!

Can u plz mark me as brainliest? I really need it!
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3 years ago
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Answer:

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