Answer:
tex]Both \: the \: moon \: and \: earth \: are \: in \: \\ the \: shape \: of \: spheres. \\ Surface\: area \: of \: a \: sphere \: of \: radius \: 'r' \\ [/tex]
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
I don't know what the answer to number 1 is.
2. <u>Center</u>
25x² + 4y² - 50x - 24y - 39 = 0
25x² + 4y² - 50x - 24y = 39
25x² - 50x + 4y² - 24y = 39
25(x² - 2x) + 4(y² - 6y) = 39
25(x² - 2x + 4) + 4(y² - 6y + 9) = 39 + 25(4) + 4(9)
25(x² - 2x + 4) + 4(y² - 6y + 9) = 39 + 100 + 36
25(x² - 2x + 4) + 4(y² - 6y + 9) = 175
<u>25(x - 2)²</u> + <u>4(y - 3)²</u> = <u>175</u>
175 175 175
<u>(x - 2)²</u> + <u>4(y - 3)²</u> = 1
7 17
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Answer:
-10 degrees Celsius
Step-by-step explanation:
The more negative a temperature in degrees Celsius is, the colder it is.
8b+24=-4b
add 4b to each side
8b+4b=-24
12b=-24
divide by 12 on each side
b=-2