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Marianna [84]
3 years ago
11

2x - 12 for x = 18 evaluate each expression for the given value of x.

Mathematics
2 answers:
monitta3 years ago
8 0

Answer:

24

Step-by-step explanation:

Original equation:

2x - 12 = ?

We know x = 18

So, just plug the value into the equation

2(18) - 12

Multiply 2 by 18

36

Subtract 12 from 36

The answer is 24

Hope this helped :)

rjkz [21]3 years ago
3 0

Answer:

x=10

Step-by-step explanation:

2x-12 = 18

    +12  +12

2x=20

20/2 = 10

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Whats the domain and range of f (x)=7x^5 .
Furkat [3]

Answer:

The domain of this function: (-∞,∞), or {x|x∈ℝ}

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8 0
3 years ago
A student incorrectly determined that the length of DE is 29 cm explaining that 12-7 = 5 and 36-7 = 29 explain what mistake the
FinnZ [79.3K]

Answer:

The length of the hypotenuse ≈ 39.7 cm

Explanation:

Since the given triangle is a right-angled triangle, this means that we can apply the Pythagorean theorem.

The equation for Pythagorean calculation is:

(hypotenuse)² = (first leg)² + (second leg)²

In the given, we have:

first leg = 30 cm

second leg = 26 cm

Substitute with the givens in the above equation to get the hypotenuse as follows:

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(hypotenuse)² = 1576

This means that:

either hypotenuse = √1576 = 39.69 ≈ 39.7 cm ..........> accepted

or hypotenuse = -√1576 = -39.69 ......> rejected as length can't be negative

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