3 years ago

Describe the process in proving that the solution of an inequality is valid.

1 answer:

6 0

Ok so you have to work backwards so lets say
x=50
work backwards does the answer you got make sense for it to be that answer

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QUESTION 4 If 1 foot = 0.37 metres and 1 mile = 5,180 feet, find the number of kilometres in 15 miles. show how to work out the

Andreas93 [3]

Answer:

28.749 km

Step-by-step explanation:

in reality

1 foot = 0.3048 meters not 0.37

1 mile = 5,280 feet not 5,180

15 miles = 24.14016 kilometers

---------------------------

Using the numbers stated in the problem

0.37m/ft * 5180ft/mile * 15mile * 1km/1000m = 28.749 km

4 0

3 years ago

What is the length of x?

Marat540 [252]

Answer:

The length of 'x' is 4

Step-by-step explanation:

We can use the pythagorean theorem to solve this.

The pythagorean theorem is:

$a ^{2} + b^{2} = {c}^{2}$

$a ^{2} + b^{2} = c^{2} \\ {3}^{2} + {b}^{2} = 5^{2} \\ 9 + {b}^{2} = 25 \\ \frac{ - 9 \: \: \: \: \: \: \: \: = - 9}{b ^{2} = \sqrt{16} } \\ b = 4$

Therefore x = 4

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3 years ago

Help with question 17

Kruka [31]

Ok if you show me the question I can try to help but you got to show it

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3 years ago

Solve the equation: 3(x - 4) = -21 *

romanna [79]

Answer:

x = -3

Step-by-step explanation:

simplify

3(x - 4) = -21

3x - 12 = -21

3x = = -9

x = -3

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3 years ago

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HELP ASSSAP WITH THIS QUESTION

bulgar [2K]

The answer is linear and increasing. look at it.... it goes up.

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3 years ago