The correct answer would be B because .47 is bigger than 42/100 or .42
Answer:
The correct option is b) 1.70
Step-by-step explanation:
Consider the provided information.
The weekly sulfur dioxide emissions follow a normal distribution with a mean of 1000 ppm (parts per million) and a standard deviation of 25.
Thus, μ=1000 and σ = 25
The CEO wants to know if the mean level of emissions is different from 1000.
Therefore the null and alternative hypothesis is:
and
The sample size is n = 50 and ppm.
Now calculate the test statistic by using the formula:
Substitute the respective values in the above formula.
Hence, the correct option is b) 1.70
Answer:
Step-by-step explanation:
y=ax^2+bx+c
a parabola open down when a is negative
y intercept equal 3 when x=0 then y=c=3
vertical stretch : is a stretch away from the x-axis
the equation is (-0.5x^2+4x+3)
i hope it helps
Frank = F
Sue = S
John = J
F=3*S
F = J+15
S = J-1
If you want to find Frank's age, then his age would be equivalent to John's plus 15 years.
A.-Would not work because Frank is three times Sue's age, not John's (left hand side of the equation).
B.-Notice that the right hand side of the equation is equivalent to Sue's age, which we know is John-1, however it is currently written to be "three times Sue's age minus one" which would give us John's age, plus two more years than his actual age on the left hand side.
C.-Frank's age is equal to John's plus fifteen (right side of the equation) and Frank is equal to Sue's age times 3. But, if Sue is in terms of Johns, then Sue's age is John's minus one. Therefore, Frank's age is equal to three times Sue's age of John minus one, which is the left-hand side of our equation.
Therefore C is the answer. C:
It totals out to 2496 in^2
Hope this helped