Which of the following algebraic expressions represent the word phrase "seven subtracted from a number"?
a. both (x – 7) and (7 – x) represent the given phrase.
b. only (x – 7) represents the given phrase.
c. only (7 – x) represents the given phrase.
d. none of the above represents the given phrase.

f(x) is going down by 4

step-by-step explanation:

(its either that or its going left by 4)

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;

2

step-by-step explanation:

h * s * a

h = history teacher

s = science teacher

a =   art teacher.

i see no data table, but just multiply the number of history teachers, science teachers, and art teachers.