Answer:
x+6
Step-by-step explanation:
The given expression is (2+x)+4.
The associative property is :
(a+b)+c= a+(b+c)
Here,
a = 2, b = x and c = 4
So,
(2+x)+4 = 2+(x+4)
= x+6
So, the equivalent expression is x+6.
Answer:
divide the 13 motorcycles by the total number of vehicles and then multiply by 100%
43 cars
Step-by-step explanation:
Q3
To find the percent of motorcycles in traffic
divide the number of motorcycles by the total number of vehicles and then multiply by 100%
Q4
Mode means most often. In a histogram, it is the tallest column. It is the first column, which looks like 43 cars
The candle would burn for 18 hours.
45 / 15 = 3
If the candle is three times longer than normal, it will burn three times longer than normal.
3 x 6 = 18
Answer:
a(n) = -16b + (n - 1)(3b)
Step-by-step explanation:
First term is -6b.
Common difference is 3b; each new term is equal to the previous one, plus 3b.
Formula for this arithmetic sequence is
a(n) = -16b + (n - 1)(3b)
Answer:
B -0.104
Step-by-step explanation:
Step 1: Write the formula for correlation
r = total xy
√Total x² x Total y²
Step 2: Make a table to calculate all values
Table is attached in the picture below
Step 3 : Solve
Mean of X = Total X/ Total number of X
= 507/12
= 106.33
Mean of Y = Total Y/ Total number of Y
= 1276/ 12
= 42.25
r = total xy
√Total x² x Total y²
r = -352.05/ √3656.25 x 3122.66698
r = -0.104
-0.104 is negative
This negative correlation means there is an inverse correlation between variables.
