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antiseptic1488 [7]
2 years ago
13

The variables x and y have a proportional relationship: when x is 4, y is 11.

Mathematics
1 answer:
4vir4ik [10]2 years ago
4 0
This 2727818 and that juicier 78388
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The speed of sound in water is 1498 m/s. a sonar signal is sent straight down from a ship at a point just below the water surfac
bulgar [2K]
The 1.8 s is the time for the signal to reach the ocean floor and return to the ship so the time to reach ocean floor = 1.8 / 2 = 0.90 seconds.
depth of ocean = speed * time

=  1498 * 0.90  =  1348.2 m  Answer
8 0
3 years ago
if a rectangle has am area of 2x²+11x+15, what would be an expression for the length, and for the width?
lozanna [386]

Answer:

Length = 2x + 5

Width = x + 3

Step-by-step explanation:

Area of rectangle = length × width

Expression for area of the rectangle = 2x² + 11x + 15

Factorising the quadratic expression

2x² + 11x + 15 = 2x² + 6x + 5x + 15 = (2x² + 6x) + (5x + 15) = 2x(x + 3) +5(x + 3) = (2x + 5)(x + 3)

Length = 2x + 5

Width = x + 3

3 0
3 years ago
64 is 10 more than wha
Sever21 [200]
It is ten more than 54
7 0
3 years ago
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Please help it is for a test. The question is in the photo.
Anettt [7]

Answer:

umm?

Step-by-step explanation:

6 0
3 years ago
The Bermuda Triangle is roughly defined by Hamilton, Bermuda; San Juan, Puerto Rico; and Fort Lauderdale, Florida. The distances
zloy xaker [14]

Answer:

442554 square miles

Step-by-step explanation:

The area of a triangle is given by :

0.5*A*B*Sin(∅) where A and B are two sides and ∅ is the angle between them.

We will find ∅ by applying cosine rule:

c^2 = a^2 + b^2 − 2ab cos(∅)

Where ∅ is angle between sides a and b.

In this example:

a=1028, b=1046, c= 965

Plugging in the values, we get ∅=55.4°

Applying the formula for Area:

0.5*A*B*Sin(∅)

0.5*1028*1046*Sin(55.4)= 442554 square miles

8 0
3 years ago
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