Point H(9, 1) is reflected across the x-axis. Which statements about H’ is true? select each correct answer.

a. the x-coordinate is -9
b. the x-coordinate is 9.
c. the y-coordinate is 1.
d. the y-coordinate is -1.

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?

About 9% of th population is hopelessly romantic. if 2 people are randomly selected from the population, what is the probability that at least 1 person is hopelessly romantic?

Scores on the cognitive scale of the bayley-scales of infant and toddler development range from 1 to 19, with a standard deviation of 3. calculate the margin of error in estimating the true mean cognitive scale score, with 99% confidence, if there are 12 infants and toddlers in a sample.