The triangle below models a section of the supports you might see in a construction crane. a. What is the sum of the angle measures of the triangle? Show your work.

1. Alt interior = 60

2. angle A + angle B + 2 =180

3. x supplemental

4. Alt interior = 90

5. Supplimentary = 90

(A is already solved)

b. Check your answer to problem 3a. Show your work.

(Please answer b)

answer: $34.31

step-by-step explanation:

$11.99 x 3 = $35.97

$35.97 - 10% = $32.37

$32.37 + 6% = $34.31

whats the

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;