Answer:
25 years
Step-by-step explanation:
Solution:-
- Data for the average daily temperature on January 1 from 1900 to 1934 for city A.
- The distribution X has the following parameters:
Mean u = 24°C
standard deviation σ = 4°C
- We will first construct an interval about mean of 1 standard deviation as follows:
Interval for 1 standard deviation ( σ ):
[ u - σ , u + σ ]
[ 24 - 4 , 24 + 4 ]
[ 20 , 28 ] °C
- Now we will use the graph given to determine the number of years the temperature T lied in the above calculated range: [ 20 , 28 ].
T1 = 20 , n1 = 2 years
T2 = 21 , n2 = 3 years
T3 = 22 , n3 = 2 years
T4 = 23 , n4 = 4 years
T5 = 24 , n5 = 3 years
T6 = 25 , n6 = 3 years
T7 = 26 , n7 = 5 years
T8 = 27 , n8 = 2 years
T5 = 28 , n9 = 1 years
- The total number of years:
∑ni = n1 + n2 + n3 + n4 + n5 + n6 + n7 + n8 + n9
= 2 + 3 + 2 + 4 + 3 + 3 + 5 + 2 + 1
= 25 years
D. 7
a constant is a term without any variables
Answer: a.) Combine like terms.
Step-by-step explanation:
When solving equations that involve unknown variables, there are many steps to take to help one solve for the unknown variable. These steps include,
1.) combining like terms so that you can have similar terms on one side of the equation.
2.) Subtracting or adding A term that may be common to both side of the equation so you can be left with simpler terms to deal with
3.) diving or multiplying by a common factor to both sides of the equation so you can have a simpler equation to deal with.
Going by the above conditions and checking With the available options, combining like terms is the feasible step to take among the given options.
1/3 x 2/4 = 2/12
For multiplying fractions do the top and bottom separately, so 1 x 2 and 3 x 4 giving the top part (numerator) as 2 and bottom part (denominator) as 12
9514 1404 393
Answer:
smaller : larger = 3 : 4
Step-by-step explanation:
The scale factor is the ratio of corresponding dimensions. If we use the width dimensions, we have ...
smaller/larger = 9/12 = 3/4
The scale factor is 3/4.
