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3 years ago

Express ratio in simplest form 18 feet : 5 yards

Mathematics

1 answer:

lions [1.4K]3 years ago

8 0

3 ft = 1 yard

with that information you should be able to simply the ratio you provided

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If 3x - 2y = 9 , 27x³- 8y³= 1377 , prove that xy = 4 <br><br><br><br>plzz answer this question...

solniwko [45]

Step-by-step explanation:

Here we are given that , the Value of

$3x - 2y = 9$
$27x^3 - 8y^3 = 1377$

And we need to find the prove that ,

$xy = 4$

We know a identity as ,

$(a-b)^3 = a^3-b^3-3ab(a-b)$

On cubing both sides of the given equation,

$(3x-2y)^3 = 9^3$

Simplify and then substitute ,

$27x^3-8y^3 -3(3x)(2y)(3x-2y ) = 729$

$1377 - 18xy (9) = 729$

$162xy = 1377-729$

$xy =\dfrac{648}{162}$

$xy = 4$

Hence Proved !

8 0

3 years ago

Round 72.46387 to the nearest tenth

denis23 [38]

Answer:

Step-by-step explanation:

$72.46387 = 72.5$

6 0

3 years ago

Read 2 more answers

What is the equation of the line that best fits the given data? A graph has points (1, 7), (1, 6), (2, 5), (2.5, 5), (3, 3), (4,

Mice21 [21]

answer is d

Step-by-step explanation:

hope it is helpful

6 0

3 years ago

This question has two parts, First, answer Part A Then, answer Part B

krek1111 [17]

1/2x-7=1/3x-4,

1/2x-3=1/3x,

1/2x-1/3x=3

1/6x=3/1/6

Final answer x=18

I hope you understand and best wishes!!

4 0

3 years ago

The propeller blades on a submarine have a radius of 6 feet. At full speed, they turn at 120 revolutions per minute. What is the

bogdanovich [222]

Using proportions, it is found that the angular velocity at the tip of the blade is of 753.98 radians per minute.

<h3>What is a proportion?</h3>

A proportion is a fraction of a total amount, and the measures are related using a rule of three.

Each revolution has $2\pi$ radians, hence in one minute, the 120 revolutions will have a measure in radians of:

M = 120 x 2pi = 240pi = 753.98

Hence the angular velocity is of 753.98 radians per minute.

More can be learned about proportions at brainly.com/question/24372153

#SPJ1

8 0

2 years ago