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2 years ago

13 POINTS!! ANSWER THIS PLEASE

Mathematics

2 answers:

Andrei [34K]2 years ago

8 0

Hi sorry I’m what’s the question?

tatuchka [14]2 years ago

7 0

Answer:

13= 10+3

Step-by-step explanation:

I hope this helps

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Solve the equation. Show your work, or explain your reasoning.<br><br> -3x - 5 = 16

Pani-rosa [81]

First add 5 to 16, so -3x=21
then divide by -3, so the answer is
x= -7

3 0

2 years ago

Solve. Write the solution in interval notation. -2x>-8 and -5x<20.

Novosadov [1.4K]

Answer:

The interval notation of the solution is (-4 , 4)

Step-by-step explanation:

* Let us explain a very important point in solving inequality

- When you multiply or divide an inequality by negative number we

must reverse the symbol of the inequality

- Ex:

∵ 2 < 3

- If we multiply the both sides of the inequality by -1, then the

inequality will be -2 < -3 and this is completely wrong, so we must

reverse the symbol of the inequality

∴ -2 > -3

* Now let us solve the problem

∵ -2x > -8

- Divide both sides by -2 and remember to reverse the symbol of the

inequality

∴ x < 4

∵ -5x < 20

- Divide both sides by -5 and remember to reverse the symbol of the

inequality

∴ x > -4

- From both solutions

∴ -4 < x < 4

∴ The solution is {x : -4 < x < 4}

- Interval notation is a way of writing the solutions of inequalities

( , ) if x does not equal the end numbers

[ , ] if x equals the end numbers

[ , ) , ( , ] if x equals one of the two end numbers

* The interval notation of the solution is (-4 , 4)

4 0

3 years ago

05.06)Which of the following best describes interval C on the graph shown?

Korolek [52]

Linear decreasing

I haven't learned this is class yet, but I had a bf that taught me this

8 0

3 years ago

Read 2 more answers

What is - 5 = -2 what is the questionwhat is the question

Anni [7]

Answer:

-5 + 3 = -2

Step-by-step explanation:

I don't really understand what you're trying to ask here...

5 0

3 years ago

What is the argument of -5\sqrt{3}+ 5i?

Shtirlitz [24]

Answer:

150 degrees

Step-by-step explanation:

Graphing the complex number we see the angle terminates in the second quadrant. This means the argument, the angle, will be between 90 degrees and 180 degrees.

So if we create a right triangle with that point after graphing it. We see the height of that triangle is 5 because that is the imaginary part. The base of that triangle has length $5\sqrt{3}$ . The problem is this doesn't give us any part of the angle we want, but it does give us the complementary of the part of the angle that is in second quadrant.