1) By the inscribed angle theorem,
2) By the inscribed angle theorem, arc RT measures twice 63 degrees, or 126 degrees.
Help I’ll give 25 points!! it’s a test btw
1 answer:
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Answer:
16.7% of GMAT scores are 647 or higher
Step-by-step explanation:
The Empirical Rule states that 68% of the values are within 1 standard deviation of the mean(34% above, 34% below). It also considers that 50% of the values are above the mean and 50% are below the mean.
In this problem, we have that the mean is 547 and that the standard deviation
is 100.
a. What percentage of GMAT scores are 647 or higher?
647 is 1 standard deviation above the mean.
So, 50% of the values are below the mean. Those scores are lower than 647.
Also, there is the 34% of the values that are above the mean and are lower than 647.
So, there is a 50% + 34% = 84% percentage of GMAT scores that are 647 or lower.
The sum of the probabilities must be 100
So, the percentage of GMAT scores that are 647 or higher is 100% - 84% = 16%.
Answer:
A) is the expression to represent total amount of money she earns babysitting for Smith family.
B) she will earn for Smith family for 7 hours
C) It would take for Margie to make
when babysitting for the Smith family
Step-by-step explanation:
Given.
Mr. and Mrs. Smith pay Margie an hour to babysit their son, Shea.
Mr. and Mrs. Jones pay Margie $8 an hour to babysit their children, Sarah, Susan, and Dawn.
Let x be number of hours.
Solving for Part A.
Amount of Money earn from Smith family = Pay per hour Number of hours =
Solving for Part B.
x=7
Margie earns from smith family for 7 hours =
Solving for part C.
Margie earned =
To find number of hours
No of hour Margie has done babysitting for Smith family