Answer:
3 hours
Step-by-step explanation:
Given that:
Time taken by Kalon = 4 hours
Time taken by Marna =?
Time taken if the work together = 1 5/7 hours
Kalon's rate = 1/ time =. 1/4
Kalon + Marna = 1 ÷ 1 5/7 = 7/12
Hence,
Marna's rate = 7/12 - 1/4
Marna's Rate = (7 - 3) / 12 = 4/12 = 1/3
Marna's rate = 1/3
Hence, time it takes Marna = reciprocal of rate = 1÷ 1/3 = 1 * 3/1 = 3 hours
1. -2(3x+4)
because -2 times 3= -6 and 4+4=8
Answer:c
Step-by-step explanation:none of these are good answers as they can all exist in flat Euclidean space. The best answer is c because a great circle exists in spherical (non-flat) geometry . However it’s not really correct to say you could never describe a great circle in Euclidean space and whoever wrote this question (not you, the original author of the question) deserves to bite their tongue on their dinner tonight
Answer:
270 degrees because 1/4 of a circle is 90 degrees
Answer:
A, B
Step-by-step explanation:
Not C, D, E, because they show two points with the same x-coordinate but different y-coordinates.
In a function, each x is paired with <u>just one</u> y.
The graph of a function will never have two or more points <u>stacked verticall</u>y.