To complete the square we get the coefficient of x, divide it by 2 then square it.
-3/4 divided by 2 =
-3/8 and then squared it equals
9 / 64
answer is a
Answer:
317,988,000
Step-by-step explanation:
We have been given that according to the United States Census Bureau, on September 11, 2014, the population of the United States was increasing by 11 people every 12 seconds.
Let us find number of people increased in 1 minute as:

Now, we will convert 11 years into minutes and multiply by 55 to find increase in population in 11 years.



Upon multiplying 5,781,600 by 55, we will get:


Therefore, the population of United States would increase 317,988,000 in 11 years.
Answer:
B
Step-by-step explanation:
The angle at the centre is equal to the arc that subtends it , thus
∠ ABC = arc AB = 75° → B
Answer:
0.0445937
Step-by-step explanation:
-Given that the sample statistic has a mean of 406 grams, standard deviation of sq root(225) and the null statistic is 411 grams.
-Assuming normal distribution, the test statistic is calculated as:

-we then find the p-value of the test statistic from the z-tables:
P-value=0.0445937
Answer:
Answer is 11/2.
Step-by-step explanation:
I hope it's helpful!