b)suppose only 1 in every 1,000 stars in the observable universe has a planetary system. how many planetary system are there? Fi rst Answer gets brainliest and 20 pts if want more ill put up another question of hundred pts so answer this one first
1 answer:
Answer:
Please read below :)
Step-by-step explanation:
so you have 1 in a 1000, or 1/1000. But you're missing a part of the answer. If you post the whole answer I can give you the correct answer :)
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A.
f(x) = -5/2x + 4
f(3) = (-5/2)(3) + 4
f(3) = -15/2 + 4
f(3) = -7.5 + 4
f(3) = -3.5
Answer: B. –3.5
X=0 is definitely the answer but I belive how u solve it is 7×X=0 and that leaves -4 because it would be 0-4 so u just take out the zero. I think, but the answer is 0.
Answer : 19.6cm
I hope this helps you! Have a good day!
Answer:
9in
Step-by-step explanation:
radius is half the diameter
18/2 is 9 so the radius is 9in
