Answer: Rational number
Step-by-step explanation:
Let's write out the properties of rational and irrational numbers.
Rational
- Integers
- Whole numbers
- finite decimals
- repeating decimals
Irrational
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Looking at the list we made, we can say that -20 is a rational number. -20 is an integer and a whole number. Therefore, it is a rational number.
Answer: The first table represents a function!
Step-by-step explanation:
Hope this helps!
<!> Brainliest is appreciated! <!>
Answer:
80 ft
Step-by-step explanation:
<em>hey there,</em>
<em />
< We know that the rope is 3 pieces long. To make this into an equation, let's just write x + y + z = 150.
Assuming "y" is our second piece, we can tell y = 2x, because it is two times the size of the first piece, which is "x". We also know "z" (our third piece): z = 30.
We can try inputting all the things we know now. x + (2x) + 30 = 150. From here, we can find that x = 40. Since y is our second piece, y = 2x, so 2 x (40) = 80. The second piece would be 80 feet long. >
<u>Hope this helped! Feel free to ask anything else.</u>
![log_{x}(1/8)=-3/2](https://tex.z-dn.net/?f=log_%7Bx%7D%281%2F8%29%3D-3%2F2)
This is equal to...
![x^{-3/2}=1/8](https://tex.z-dn.net/?f=x%5E%7B-3%2F2%7D%3D1%2F8)
We want "x" so we need to isolate it using laws of exponents...
![x^{(-1)(3/2)}=1/8](https://tex.z-dn.net/?f=x%5E%7B%28-1%29%283%2F2%29%7D%3D1%2F8)
because ![x^{-a}=1/x^{a}](https://tex.z-dn.net/?f=x%5E%7B-a%7D%3D1%2Fx%5E%7Ba%7D)
because ![x^{a/b}=\sqrt[b]{x^{a}}](https://tex.z-dn.net/?f=x%5E%7Ba%2Fb%7D%3D%5Csqrt%5Bb%5D%7Bx%5E%7Ba%7D%7D)
x = 4
answer: B
Answer: The third one or C