2•2.5=3•-7 I'm not sure honestly that's my best guess
2x + 12 = 18
18 - 12 = 6
2x = 6
x = 3
The answer is the option <span>A.) More than $0 but less than $4100
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Because, when currency is exchanged for another currency, the bank or trader usually </span>charges commission <span>for changing it.
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Answer:
z= 2.38
P = 0.008656
Step-by-step explanation:
Here n= 500 and p~= 464/500= 0.928 and q`= 1- 0.928 = 0.072
We formulate our null and alternate hypothesis as
H0 = 0.9 ; H0 > 0.9
The degree of confidence = 90%
z₀.₀₅ = 1.645 for α= 0.05
We use the test statistic
z= x- np/√npq
z= 466-500 *0.9/ √500 * 0.9(1-0.9)
z= 466- 450/ √45
z= 16/6.7082
z= 2.38
As the calculated value of z= 2.38 is greater than α =1.645 so we reject H0.
If H0 is true the P value is calculated as
P = 1- Ф( 2.38)
P = 1-0.991344=0.008656
Let 
be the line given by the vector equation
.
First, we use the director vectors of the lines L1 and L2 to get the
vector equation of the plane containing them, which we denote by 
. This is,
We observe that 
. Therefore, the vector equation of defines a plane and 
is a normal vector to 
Finally, the vector equation for the wanted plane, which we denote by 
, is
Thus, if 
, then 
and since is parallel to , then it is perpendicular to .
