Answer:

Let d1 be the diameter of the moon and d2 and be the diameter of the earth.Let r1 be the radius of the moon and r2 be the radius of the earth.

hope it helps you
Answer:
The answer to the question is A
Answer:
13 sports books and 10 unknown books is 23 books
Step-by-step explanation:
we already know scott read 23 books total, we also know that he read 10 mystery books.
subtracting 10 unknown books from 23 total books, we get 13 sports books as your answer
To solve this, you would set up the equation to find the arithmetic mean of the data. This equation is (53+83+67+73+x)/5=70, where x=the score of the fifth exam. First, you combine the constants to get (276+x)/5=70. Then, multiply both sides by 5 to get rid of the denominator, to give you 276+x=350. Then subtract 276 from each side to get x=74. So, Thanh needs to score a 74 on his last exam to get a 70 in the class.
Answer:
0,0
Step-by-step explanation:
if you substitute the X and Y from the answer choices into each equation and check if they're true only 0,0 is true for both.