Answer:
ī=80; s = 10
Step-by-step explanation:
When the standard deviation is from a finite group it is denoted by s. The number of transactions from an atm are countable in a day. So the standard deviation will be represented by s.
and ī represents the mean.
The other choices are incorrect because mean is usually represented by a bar over the alphabet such as x.
a simple alphabet does not denote the mean of the sample or population.
Answer:
Q1 d, Q2 c, Q3 d
Step-by-step explanation:
Q1
g(x)=-3x+1
g(x)=16 means that
-3x+1=16 subtract 1 from both sides
-3x=16-1 combine like terms and divide both sides by -3
x=-15/3=-5
Q2
g(x)=3x²+4x-1
g(2) means that x=2 so substitute
g(2)=3*2²+4*2-1=12+8-1=19
Q3
domain are the x values
range are the y values
Answer:
<u>There are 34 dimes and 6 quarters in the jar.</u>
Step-by-step explanation:
1. Let's check the information given to us to answer the question correctly:
Number of dimes and quarters = 40
Total value of the 40 coins = US$ 4.90
2. How many of each coin are there?
x = Number of dimes
y = Number of quarters
System of equations:
x + y = 40
0.10x + 0.25y = 4.90
Solve for y on the 1st equation:
x + y = 40
y = 40 - x
Substitution of y for solving for x on the 2nd equation:
0.10x + 0.25y = 4.90
0.10x + 0.25 (40 - x) = 4.90
0.10x + 10 - 0.25x = 4.90
-0.15x = 4.90 - 10
-0.15x = -5.10
x = -5.10/-.015
x = 34 ⇒ y = 6
<u>There are 34 dimes and 6 quarters in the jar.</u>
In exact form that would 2 over 49 and in decimal form that would be 0.04.
Answer:
2w2-5w-11 just subtract the second set of numbers from the first but it has to be like terms such as anything that is squared would only be applicable to another term with that is squared. a term is any group of number separated by a plus or a minus but it is not a term if it is separated by a multiplication symbol or a division symbol