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2 years ago

Why do some numerical expressions contain parentheses

1 answer:

6 0

The most basic and common reason to use parentheses, brackets, and braces is to control the order of operations.

<h3>What are parentheses?</h3>

In mathematics, parenthesis is used to arrange numbers in the sequence of operations, clarify numbers, and denote multiplication.

Suppose you have an expression as:-

E = { ( 5-2 )8} 6

In this case, you would calculate 5 minus 2 first (parentheses), then multiply by 8 (brackets), then complete the part inside the curly braces, and finally multiply by 6.

Therefore the most basic and common reason to use parentheses, brackets, and braces is to control the order of operations.

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The ratio of pants to shots that John has is 2:3. If John has 8

boyakko [2]

Answer:

12 shirts

Step-by-step explanation:

Since John has 8 pants and 2 x 4 is equal to 8. Then you must multiply the number of shirts by 4 (3 x 4) to give you the number of shirts, which is 12.

Check:

2/3 is equivalent to 8/12

Hope this helps :)

3 0

3 years ago

How do you solve: 2(5+r)<br><br><br>A :7+r<br><br>B: 10+2r<br><br>C: 12r<br><br>D: 7+2r

maksim [4K]

Answer:

i think it´s b

Step-by-step explanation:

3 0

3 years ago

Equation of a line of best fit for the scatterplot is Y = 7X -9 what is the slope of the equation

d1i1m1o1n [39]

Answer:

Step-by-step explanation:

Or 7/1. the equation is y = mx + b. m is the slope. b is the y intercept. so m (the slope) would be 7. And b (the y intercept) would be -9.

3 0

3 years ago

Use the Factor Theorem to determine if x – 2 is a factor of g(x) = 2³ − 5x²+x+2

MA_775_DIABLO [31]

Answer:

(x -2) is a factor

Step-by-step explanation:

The factor theorem tells you that (x-2) is a factor of g(x) if g(2) = 0.

g(2) = 2·2³ -5·2² +2 +2 = 16 -20 +2 +2 = 0

Since g(2) = 0, (x -2) is a factor of g(x).

The graph shows us the complete factorization is ...

g(x) = (2x +1)(x -1)(x -2)

4 0

3 years ago

Bonjour j’ai un exercice de maths et je ne comprends rien

Minchanka [31]

Donc pour trouver la réduction de 30% nous allons trouver 30% de 49 alors nous allons faire 30 × 100 × 49 = 14,7 14,7 est la réduction maintenant nous devons faire 49 € -14,7 € soit 34,3 €, le prix est maintenant de 34,3 €, désolé d'utiliser Google Translate pour vous aider, mais j'espère que c'est correct :)

4 0

3 years ago