The answer is rather symbol just combine the like terms! -2X^2 has no like terms for it is the only exponent so cancel out C because it doesn't start with -2X^2. Next we add all variables with X but no exponent so 3X and -5x Add those together to get 3X +-5X which is -2X because the + is cancelled out so ghe equation is 3X-5X which equals -2X so get rid of everything but B. Finally to confirm it is B add all the basic numbers so the five and three to get eight. So (f+g)(x) = -2X^2 -2X + 8. The answer is B. (You guys said it was A so I changed it but now I know I am right.)
Answer:
{ - 2, 1 }
Step-by-step explanation:
To determine the values let y = 0, that is
(x + 2)(2x - 2) = 0 ← in standard form
Equate each factor to zero and solve for x
x + 2 = 0 ⇒ x = - 2
2x - 2 = 0 ⇒ 2x = 2 ⇒ x = 1
The set of values are { - 2, 1 }
The answer would be 3 to 1 as there are 3 dogs and 1 cat and the question asks for the ratio of dogs to cats.
Answer:
The standard deviation of the distribution of sample means for samples of size 60 is of 1.2264.
Step-by-step explanation:
Central Limit Theorem
The Central Limit Theorem establishes that, for a normally distributed random variable X, with mean 
and standard deviation 
, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean and standard deviation 
.
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
Standard deviation is 9.5 for a population.
This means that 
Sample of 60:
This means that 
What is the standard deviation of the distribution of sample means for samples of size 60?
The standard deviation of the distribution of sample means for samples of size 60 is of 1.2264.
Answer:
18x + 16
Step-by-step explanation:
2 x length + 2 x width = perimeter
2(5x + 2) + 2(4x + 6)
= 10x + 4 + 8x + 12
= 18x + 16
