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mezya [45]
2 years ago
13

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
Mathematics
1 answer:
rosijanka [135]2 years ago
5 0

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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PLEASE HELP I DONT HAVE MUCH TIME
vaieri [72.5K]

Answer: Choice A.   1/64

Work Shown:

f(x) = 4^x

f(-3) = 4^(-3)

f(-3) = 1/(4^3) ... see note below

f(-3) = 1/64

Note: I'm using the rule that a^(-b) = 1/(a^b)

4 0
3 years ago
Read 2 more answers
after eating at a restaurant, mr. Madison's bill before tax is$65.50. the sales tax rate is 6%. Mr madison decides to leave a 10
Murrr4er [49]

$13.10 will be his tip if I’m wrong let know

7 0
3 years ago
Michael practiced batting and kept track of his hits. He missed 2 balls but hit 8 balls that were pitched to him. How many balls
trapecia [35]

Answer:

he can be predicted to hit 16 balls

Step-by-step explanation:

because he missed 2 and hit 8, that's 10 balls, times that by 2 it is he missed 4 balls and hit 16, that's 20 balls


3 0
3 years ago
It appears that the derivatives of sine and cosine are related. What about the second derivatives?.
Andru [333]

Answer:

Step-by-step explanation:

\frac{d}{dx} (sin~x)=cos~x\\\frac{d}{dx}(cos~x) =-sin~x\\\frac{d^2}{dx^2} (sin~x)=\frac{d}{dx} (cos~x)=- sin~x\\\frac{d^2}{dx^2} (cos~x)=\frac{d}{dx} (-sin~x)=-cos~x

5 0
2 years ago
An ice cream cone has a radius of 4 inches and a height of 9 inches. What is the exact value of the volume of the ice cream cone
Nata [24]
<span>π<span>r^2</span></span><span>h/<span>3
this is a formula if it is a right angle cone
</span></span>π(4)^2 (9)/3
exponent, 4^2 then times by π
<span>after times by (9/3)=
≈150.8

I think, double check and see if right</span>
6 0
3 years ago
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