Answer:
A 61
Step-by-step explanation:
Cos A = 0.4848
A = cos ^-1(0.4848)
A = 61
Answer:
Points A and C are on the unit circle
Step-by-step explanation:
The unit circle is a circle of radius 1, that is, all the points that are inside the circle have the sum of the squares of its coordinates that are at most 1. Here, we have to test this for each option.
In options B and D, the coordinates 13/7 and 4/3, respectively, means that this sum will be larger than 1, and this points will not be on the unit circle. Now we text for options A and C.
A. ( 5/13, 12/13)
Since the sum of the squares is 1, the point is on the unit circle.
C. (1/3, 2/3)
Since the sum of the squares is less than 1, the point is on the unit circle.
Answer:
tenths place
Step-by-step explanation:
tens ones . tenths hundredths
2 3 . 4 5
The four is in the tenths place
The speed of Emily is assumed to be constant and is calculated by dividing the distance she traveled from her home to the post office by the time.
speed = (0.75 mile) / (4.5 minutes) = 1/6 miles/minute
Then, calculate the time it will take her to travel from home to school.
time = (3.42 miles) / (1/6 miles/minute) = 20.52 minutes
Adding this to 8:25 will give us an answer of 8:45:31 am. Thus, she will not be late.
Both of the magazines could cost $6 or one magazine could cost $3 and the other $9.