Answer:
First one: 16 units^2
Second One: 15 units^2
Step-by-step explanation:
First One:
A=
Second One:
Answer:
Statistic
Step-by-step explanation:
2% is an example of an statistic.
Statistics are characteristics that describe a sample of the population. In this case, 2% refers to the fraction of defective toys in the 500 toys sample, and not the whole population of toys.
Parameters, on the other hand, are characteristics that pertain to a population. The percentage of all toys that is defective would be a parameter.
Answer:
In the first one answer is r²
In second one answer is 3
Step-by-step explanation:
Yes it is Algebra with different powers
In first one (6r4+4r) +(__- 2r4 + 3r) = 4r4 + r2 + 7r
Like terms are added:
6r^4- 2r^4 + 4r + 3r +____ = 4r^4 + r2+ 7r
4r^4+7r +___ = 4r^4 + r^2 + 7r
Therefore ___ = r^2
In second one:
(__ -8x - x^2)-(4x^2 -7 +6x) = -5x^2 +14x +10
Open the brackets
__ -8x - x^2-4x^2 +7 -6x = -5x^2 +14x +10
Add like terms
__ -14x -5x^2 + 7= -5x^2 +14x +10
Therefore
___ + 7 = 10
___ = 10 -7 = 3
Answer:
16
Step-by-step explanation:
Substitute s = - 3 into the expression
7 - 3(- 3) = 7 + 9 = 16
Answer: 1
Step-by-step explanation: you need to get “like terms” by themselves. So to start, you can subtract 3x from both sides. Since the right side contains 3x and you are subtracting 3x, it will cancel on the right hand side, leaving you with the equation: 5x-4=1. Now, since the 4 is just 4, it does not fit in with the 5x. So, you need the 4 on the other side with the 1 because they are alike! So you will add 4 to both sides in order to cancel out the minus 4 on the left. Leaving you with 5x=5. You want to find what x stands for, so now since 5 and x are multiplying, we will divide both sides by 5 because we want x by itself! This leaves you with x=1.