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3 years ago

4 more than a number is 12

Mathematics

2 answers:

lianna [129]3 years ago

8 0

Answer:

555

Step-by-step explanation:

ira [324]3 years ago

6 0

Answer:

4 + x = 12

x = 8

Step-by-step explanation:

4 more than a number is 12

I will represent the mystery number as "x"

4 + x = 12

x = 8

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The angle of elevation of an unfinished tower from a point of 120m away from its base is 25 degrees. How much higher will the to

Sav [38]

Answer:

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Step-by-step explanation:

Given that the angle of elevation of an unfinished tower from a point of 120m away from its base is 25 degrees.

Using trigonometry ratio, the height of the tower can be calculated by

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The commutative property implies that, the order of multiplication is not important.

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If $a \times b = b \times a$

The expression is given as:

$(-\frac 89)\cdot (-13) \cdot (18)$

To get the commutative expression, we simply change the position of each factor in the expression.

So, some possible equivalent expressions are:

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$(-13) \cdot (18) \cdot (-\frac 89)$

There are several other equivalent expressions.

From the list of options;

$(-\frac 89) \cdot (18) \cdot (-13)$ is true

Read more about commutative property at:

brainly.com/question/7037119

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