-5x(10x-5)-2x-4squared+ 7
SHOW YOUR WORK PLS

-50xsquared + 23x-9

Step-by-step explanation:

distribute -5x through the parentheses and evaluate the power to get -50xsquared+25x-2x-16+7. ten add the like terms to get -50xsquared+23x-16+7. Add the like terms to get -50xsquared+23x -9

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;

it is not that hard all u have to do is plot the graph

step-by-step explanation: