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Deffense [45]
2 years ago
11

Which number is the additive inverse of -5?

Mathematics
2 answers:
valentinak56 [21]2 years ago
5 0

Final Answer: 5

Steps/Reasons/Explanation:

Write down -5 + x = 0 because this is our equation with -5 plugged in to get an additive inverse. We will have to add 5 to both sides. This means our additive inverse is positive 5.

Question: Which number is the additive inverse of -5?

-5 + x = 0

<u>Step 1</u>: Regroup terms.

x - 5 = 0

<u>Step 2</u>: Add 5 to both sides.

x = 5

~I hope I helped you :)~

mariarad [96]2 years ago
3 0

Answer:

5

Step-by-step explanation:

Because -5 is a negative number and the opposite of negative is positive and 5 is positive.

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What would be the measure of the exterior angle for each<br> vertex of an equilateral triangle?
Mars2501 [29]

Step-by-step explanation:

The exterior angles of an equilateral triangle will always have a measure of 120°.

3 0
3 years ago
R(x) = -0.21x^3 + x^2 - 8.1x - 3 for x= -1 and x = 2
Minchanka [31]

Answer:

r(-1) = 6.31 and r(2) = -16.88

Step-by-step explanation:

* Lets read the problem and solve it

- Evaluate means find the value, so evaluate r(x) means find the value

 of it at the given values of x

∵ r(x) = -0.21x³ + x² - 8.1x - 3

∵ x = -1 and x = 2

- Then find r(-1) by substitute x by -1 and find r(2) by substitute x by 2

# At x = -1

∴ r(-1) = -0.21(-1)³ + (-1)² - 8.1(-1) - 3  

∴ r(-1) = -0.21(-1) + (1) - 8.1(-1) - 3

∴ r(-1) = 0.21 + 1 + 8.1 - 3

∴ r(-1) = 6.31

# At x = 2

∴ r(2) = -0.21(2)³ + (2)² - 8.1(2) - 3  

∴ r(2) = -0.21(8) + (4) - 8.1(2) - 3

∴ r(2) = -1.68 + 4 - 16.2 - 3

∴ r(2) = -16.88

* r(-1) = 6.31 and r(2) = -16.88

3 0
3 years ago
Customers of a phone company can choose between two service plans for long distance calls. The first plan has no monthly fee but
larisa [96]

0.17x = 0.12x +18

subtract 0.12x from each side

0.05x = 18

divide both sides by 0.05

x = 18/0.05 = 360

 360 minutes would be the answer



Please mark brainliest


7 0
3 years ago
Read 2 more answers
(Giving brainliets to who ever helps me!!
maria [59]

Answer:

6.1555

Step-by-step explanation:

the 5 is infinite in 6.15 such as 6.155555555 it does not stop

7 0
2 years ago
Read 2 more answers
Applying the properties of exponents, which mathematical operation changes 2 1/3 to 2?
e-lub [12.9K]

Hope this helps!

Stay safe and have a great day :D

6 0
3 years ago
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