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m_a_m_a [10]
2 years ago
12

Write an inequality relating m

Mathematics
1 answer:
matrenka [14]2 years ago
8 0
I’m pretty sure it’s d
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Please help on two math questions. I don’t understand how to do them.
Sidana [21]

When you represent intervals on the number line, you're including full dots, excluding empty dots, and you're considering numbers highlighted by the line.

In the first case, you've highlighted everything before -2 (full dot, thus included), and everything after 1 (empty dot, excluded). So, the set would be

x\leq -2 \lor\ x>1

or, in interval notation,

(-\infty,-2]\cup (1,\infty)

In the second case, you are looking for all numbers between -3 and 5. This interval is symmetric with respect to 1: you're considering all numbers that are at most 4 units away from 1, both to the left and to the right.

This means that the difference between your numbers at 1 must be at most 4, which is modelled by

|x-1|\leq 4

where the absolute values guarantees that you'll pick numbers to the left and to the right of 1.

3 0
2 years ago
Solve by using the quadratic formula: Simplify
larisa [96]

Answer:

-6 - square root 31, -6 + square root 31

8 0
2 years ago
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There were 10 students in a teacher's classroom. The next week, there were 19 students. What is the percent increase
mixas84 [53]

Answer:

Step-by-step explanation:

7 0
2 years ago
Darragh has a Golden Eagle coin in his collection with a mass of 13.551 g. An uncirculated Golden Eagle coin has a mass of 13.71
Sav [38]

The mass lost by Darragh's coin is 0.164 g

<u>Solution:</u>

Given that Darragh has a Golden Eagle coin in his collection with a mass of 13.551 g

An uncirculated Golden Eagle coin has a mass of 13.715 g

To find: mass lost by Darragh's coin

From given question,

Darrangh has coin of mass = 13.551 g

Golden Eagle coin mass = 13.715 g

Darrangh's coin lost mass = 13.715 - 13.551 = 0.164

Thus mass lost by Darragh's coin is 0.164 g

6 0
3 years ago
Which is the length of the unknown leg in the right triangle?
Scilla [17]
The answer might be 42.
6 0
3 years ago
Read 2 more answers
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