1. 151 students enrolled in math7 were assigned a survey. 127 students completed the survey. (a) what percent of students completed the survey? (b) 26 students who completed the survey state they have a c in the course. if all students in the class completed the survey, how many would have a c?

(a) would be about 84 percent

(b) would be 26 students, because out of 127 students only 26 students have a

(c) in math7.

so 151 is the total number so were going to use that as 100% now we have an equation as 100%= 151 and x=127 so we have to figure that out if we multiply both sides by the x equation and then we divide the answer would round to 84%

so a parallelogram is just like a square base times height. multiply 40 and 39 to get 1560 inches.

a triangle is base times height divided by two. so multiply 7.9 and 5 and then divide it by 2 to get 19.75inches.

the kite can be split into two separate triangles and added together to get the total area. 30 x 4 /2 which equals 60. make sure to double it for the two triangles making 120.

d. 24+-0.114

step-by-step explanation:

the question requires us to calculate the approximate 95% confidence interval for the mean number of ounces of ketchup per bottle in the sample given the following statistics;

sample mean = 24

standard deviation, σ = 0.4

sample size , n = 49

the confidence interval for a population mean is calculated using the formula;

sample mean ± z-score*(σ/sqrt(n))

the z-score associated with a 95% confidence interval, from the standard normal tables, is;

1.96

substituting these values into the formula;

24 ± 1.96*(0.4/7)

= 24 ± 0.112

from the alternatives given, choice d is closest to the above expression;