Factor x2 + 29x - 30.
O (*+ 15)(x - 2)
o (x + 1)(x - 30)
O (x - 1)(x + 30)

Step-by-step explanation:

x²+29x-30

=x²+30x-x-30

=x(x+30)-1(x+30)

=(x+30)(x-1)

x= -30 or, x= 1

bull

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;