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insens350 [35]
2 years ago
11

What does [ ] mean in math? ​

Mathematics
2 answers:
xz_007 [3.2K]2 years ago
6 0

it is a bracket used in maths

maksim [4K]2 years ago
3 0

Answer:

They are kind of like outer brackets, so if you have some expression like this:

5 + (4 × 6 + (7 - 8)),

it's better to write it like this:

5 + [4 × 6 + (7 - 8)],

so you can read it more easily.

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ava had 30 dollars. she spent half of what she had at the friday night football game and then earned 8 dollars babysitting. how
Tresset [83]

30/2+8

30/2=15

15+8=23

she finished with $23

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3 years ago
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In the figure below, which term best describes point L?
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Answer: the answer is c I believe

Step-by-step explanation:

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The angle of depression from a balloon on a 75ft string to a person on the ground is 36°. How high is the balloon?
Rainbow [258]

Answer:

Step-by-step explanation:

sin36=h/75

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3 years ago
Factorise fully the following:<br>a) x² + 2x<br>b) 2x² - 6x<br>c) 15x - 10x³<br>d) 9x² + 3x³​
Lostsunrise [7]

Answer:

a) x(x+2)

b) 2x(x-3)

c) 5x(3-2x^2)

d) 3x^2(3+x)

Step-by-step explanation:

a) x^2+2x

When factoring a binomial (a polynomial with two terms), what we will be looking for are the terms that are shared between them.

In this problem, it can be seen that both of these terms have and x. This means that we can factor it out to get

x(x+2)

b) 2x^2-6x

What are the common terms here?

It can be seen that each of these share a 2x, so our factored form would be

2x(x-3)

c) 15x-10x^3

What about this one?

The common factor of this one is 5x, so our factored form would be

5x(3-2x^2)

d) 9x^2+3x^3

The common factor of this one is 3x^2, so our factored form would be

3x^2(3+x)

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3 years ago
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