Area of a triangle with h = 90 cm and b = 1 in.

45 in squared

Step-by-step explanation:

To find area of a triangle, you have to find the area of a square, and divide it in half. A 90 inch high square with a 1 inch base would be 90 inches, however, if you are solving for a triangle, it would be 45 inches

nswer: a   y-axis

step-by-step explanation:

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;