Answer:
A factor that is a prime number. In other words: any of the prime numbers that can be multiplied to give the original number. Example: The prime factors of 15 are 3 and 5 (because 3×5=15, and 3 and 5 are prime numbers).
Answer:
32
24
18
13.5
..............................
10 cubic centimeters of a 60% alcohol solution, would mean 10 x 60% = 6 cc is alcohol the other 4 cc is water.
To make a 90% solution, the water would be 10% of the solution.
If 4 cc is 10%, the total is 40 cc.
40 - 10 = 30 cc
30 cubic centimeters needs to be added.
Answer:
Domain- [-4,∞) ; Range- [-2,∞)
Step-by-step explanation:
![y=\sqrt{x+4} -2](https://tex.z-dn.net/?f=y%3D%5Csqrt%7Bx%2B4%7D%20-2)
For Domain, we need to find the range of value for x,
As the value for x+4 should be positive or 0 because it is under the square root bracket sign.
![x+4\geq 0](https://tex.z-dn.net/?f=x%2B4%5Cgeq%200)
![x\geq -4](https://tex.z-dn.net/?f=x%5Cgeq%20-4)
x ∈ [-4,∞)
For the range of values, we need to find all the possible value of y
As the value given by the square root will always be greater than equal to 0.
![\sqrt{x+4}\geq 0](https://tex.z-dn.net/?f=%5Csqrt%7Bx%2B4%7D%5Cgeq%200)
![\sqrt{x+4} -2\geq -2](https://tex.z-dn.net/?f=%5Csqrt%7Bx%2B4%7D%20-2%5Cgeq%20-2)
Therefore ,
y ∈ [-2,∞)