The question is incomplete. Here is the complete question.
Semicircles and quarter circles are types of arc lengths. Recall that an arc is simply part of a circle. we learned about the degree measure of an ac, but they also have physical lengths.
a) Determine the arc length to the nearest tenth of an inch.
b) Explain why the following proportion would solve for the length of AC below:
c) Solve the proportion in (b) to find the length of AC to the nearest tenth of an inch.
Note: The image in the attachment shows the arc to solve this question.
Answer: a) 9.4 in
c) x = 13.6 in
Step-by-step explanation:
a) , where:
r is the radius of the circumference
mAB is the angle of the arc
arc length =
arc length =
arc length = 9.4
The arc lenght for the image is 9.4 inches.
b) An <u>arc</u> <u>length</u> is a fraction of the circumference of a circle. To determine the arc length, the ratio of the length of an arc to the circumference is equal to the ratio of the measure of the arc to 360°. So, suppose the arc length is x, for the arc in (b):
c) Resolving (b):
x =
x = 13.6
The arc length for the image is 13.6 inches.
Answer:
option D. Car A has the same speed as car B.
Was there more to this question?
Answer: D
Explanation:
For every 1 sugar cookie, the bakery sells 4 chocolate chip cookies.
1 x 5 = 5 sugar cookies
4 x 5 = 20 chocolate chip cookies
The relation between 1 sugar cookie and 5 sugar cookies is that it’s multiplied by 5. If we were to apply that to the chocolate chip cookies, the product would be 20 (4 x 5).
Olivia's price would be determined by 5x-2.50, because she bought 5 greeting cards and got 2.50 off.
Alexandra's price would be determined by 4x-1, because she bought 4 cards and got 1.00 off. Since they both paid the same, you set the two equations equal to each other
5x-2.50=4x-1, subtract 4x to the other side so now you have
x-2.50=-1, add 2.50 to the other side so now you have
x=1.50
The price of each card is 1.50