The data reflects the amount of time spent on homework (x), paired with a corresponding test grade (V).
How can the y-intercept of the line be interpreted?
y
100
90
80
y = 7.9x + 72
O The minimum time spent on homework is
approximately 72 hours.
O The average time spent on homework is
approximately 7.9 hours.
If no time is spent on homework, the test grade is
approximately 72.
If no time is spent on homework, the test grade is
approximately 7.9.
704
60
Test Grade
50+
40
30
20
10
10 20 30 4.0 5.0
Time Spent on Homework (Hours)
Markets and

step-by-step explanation:

descending order means to order the polynomials from the term with the largest exponent to the term with the smallest exponent.  

therefore, the correct answer is d.  

a. 12.5 kg

step-by-step explanation:

f = ma

so

m = f/a = (2500 n)/(200 m/s²) = 12.5 kg

1 n = 1 kg·m/s²

hello,

b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

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step-by-step explanation:

step-by-step explanation: