Since all the option shows the variation is direct..
I. E y=kx let's take the first one to find the k and as well the relationship
When y=24,x=20
24=k*20
K=24/20
k=6/5
K=1.2....
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
The question is the thing that needs help. What does that hanging "a leading 2" mean? And rational real coefficients? Obviously if they're rational they're gonna be real, but really.
I would say "a leading 2" means the highest power of x has a coefficient to two, which is none of the above.
The last two are of degree two, which is the lowest degree. They both have integer coefficients, so are necessarily real and rational as well.
Neither has a leading 2 as far as I can tell. The last one is monic (a leading coefficient of 1). I like monic polynomials so I'd pick that one, but that doesn't make it right.
None of the above
By all you have to do is and the nominators and leave the denominator the same
Answer: Theo bought a pair of shoe for 36$
Step-by-step explanation:
25% = 0.25
48.00 * 0.25 = 12.00
48.00 - 12.00 = 36.00
