Answer:
Grade A: 
Grade B: 
Grade C: 
Grade D: 
Step-by-step explanation:
Problems of normally distributed samples can be solved using the Z score table.
The Z score of a measure represents how many standard deviations it is above or below the mean of all the measures.
Each Z score has a pvalue. This represents the percentile of the measure.
In this problem, we have that:
The upper 16% of the class get A grades. The upper 16% has a pvalue of at least 100% = 16% = 84% = 0.84. This is .
The middle 34% of the class get B grades. The middle 34% has a pvalue of at least 84%-35% = 50% = 0.5 and at most 0.84. This is 
.
Those between a pvalue of 0.5-0.34 = 0.16 and 0.5 get get grade C. 
has a pvalue of 0.16. So a grade C is in the interval .
Those with Z lesser than -1 get grades D and F
Answer:
2.53800027 ^9
Step-by-step explanation:
the product of both numbers is this.
just add both of them together. If im wrong, i will tell you another answer.
Answer:
A. 9/2 × 3/8
Step-by-step explanation:
______________
Sqrt(x^16) is x^8.
As you can see, x^8 * x^8 = x*x*x*x*x*x*x*x * x*x*x*x*x*x*x*x which equals x^16
I don't know why Cortesalondra28 deleted my answer to the question and sayid it was wrong..
Make a system of equations.
Re-arrange the 2nd equation:
Subtract y to both sides:
Plug in -y + 22 for 'x' in the first equation.
Subtract 3y to both sides:
Subtract 22 to both sides:
Divide -4 to both sides:
Plug this into any of the two equations to find 'x':
Subtract 5 to both sides:
So one of the numbers is 5 and one of them is 17.
