Science need help ?????///
An astronomer observes two galaxies, A and B, which have redshifts of: Galaxy A = 0.020 and Galaxy B = 0.010. Which galaxy is closest to us and what is its distance away from us? You may assume that the Hubble constant is H0 = 75 km s–1 Mpc−1 and that the speed of l...
english
Is it more closely?
english
WRITE the adverb form that correctly completes the sentence. Hawks resemble falcons (close) of all birds.
Physics
A mirror produces an image that is located 50.0 cm behind the mirror, when the object is located 5.50 cm in front of the mirror. (a) What is the focal length of the mirror? (b) Is the mirror 1 - concave or 2 - convex? (Give the number of the correct answer.)
Combinations and Permutations, Steve and Ms. Sue☺
#8. the answer is 6,840 yourwelcome.
Combinations and Permutations, Steve and Ms. Sue☺
#8. the answer is 6,840 yourwelcome.
math
There are 27 students in Mrs. Reeds class. The number of boys and number of girls are both composite numbers. There are 3 more girls than boys. How many girls and how many boys are in the class?
math
11 and 13. Thank you. We didnt learn prime and composite numbers but still have homework on it.
math
There are 24 students in Mr.Hills class. The number of boys and number of girls are both prime numbers. There are 2 more boys then girls. How many boys and how many girls are in each class?
Chemisrty
What volume of oxygen, measured at STP, can be prepared by heating 2.16g HgO?
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