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labwork [276]
3 years ago
14

Simplify the expression (-a)^-18

Mathematics
1 answer:
koban [17]3 years ago
3 0

Answer:

It's letter C

Step-by-step explanation:

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What is a positive angle less than 360 degrees that is conterminal with 540 degrees
jekas [21]

Answer:

Please check the explanation.

Step-by-step explanation:

As we have to determine a positive angle less than 360 degrees that is conterminal with 540 degrees.

so

  • Subtract 360° from 540°

540° - 360° = 180°

The resulting angle of 180° is positive, less than 360°, and coterminal with 540°.

7 0
3 years ago
Explain what makes 3.23 a decimal number.
nignag [31]

Answer:

the point

Step-by-step explanation:

the point makes a decimal a decimal

7 0
3 years ago
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9x = 63 what is x<br> <img src="https://tex.z-dn.net/?f=9x%20%3D%2063" id="TexFormula1" title="9x = 63" alt="9x = 63" align="abs
tankabanditka [31]

Answer:

x = 7

Step-by-step explanation:

Please give me brainliest :)

5 0
2 years ago
Find the area of the
erik [133]

Answer:

Option A: 2338.3 cm² is the correct answer.

Step-by-step explanation:

Given that:

The given figure is a regular hexagon.

Length of side = 30 cm

Area of a hexagon is given by;

Area = \frac{3\sqrt{3}}{2}a^2

Putting a=30 in the formula

Area = \frac{3\sqrt{3}}{2}(30)^2

Area = \frac{3\sqrt{3}}{2}*900

Area = 3\sqrt{3}*450

Area = 2338.26 cm²

Rounding off to one decimal place,

Area = 2338.3 cm²

Hence,

Option A: 2338.3 cm² is the correct answer.

3 0
3 years ago
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Help pls i need this done asap ty
zhuklara [117]

Answer:

b) 7.89*10^4

c) 3.15*10^3

Step-by-step explanation:

2-42)

the coefficient in scientific notation (the number that is not 10^x) has to be greater or equal to 1 and less than 10. so c and b are incorrect.

b) 0.789*10^5

c) 31.5*10^2

b) 0.789*10^5

in order to make 0.789 greater than 1, I would just multiply it by 10. shown below

=0.789*10*10*10*10*10

=7.89*10*10*10*10

=7.89*10^4

c) 31.5*10^2

same concept but this time divide by 10 to make 3.15 which will add another *10 to the exponent

=31.5*10*10

=3.15*10*10*10

=3.15*10^3

6 0
3 years ago
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