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Lunna [17]
3 years ago
12

Hello! I don’t really understand this so please help ASAP!!! Thank you!

Mathematics
1 answer:
zepelin [54]3 years ago
3 0
B for Figure 30 is 90 degrees! Hope this helps! God bless you and stay safe! <3✝️❤️
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An object is launched from a platform. Its height (in meters), xxx seconds after the launch, is modeled by: h(x)=-5x^2+20x+60h(x
EastWind [94]
It takes 6 seconds for it to hit the ground.

0 = -5x²+20x+60

We can solve this by factoring.  First factor out the GCF, -5:

0 = -5(x²-4x-12)

Now we want factors of -12 that sum to -4.  -6(2) = -12 an -6+2 = -4:
0 = -5(x-6)(x+2)

Using the zero product property, we know that either x-6=0 or x+2=0; this gives us the answers x=6 or x=-2.  Since we cannot have negative time, x=6.
3 0
3 years ago
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olasank [31]

Answer:

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Step-by-step explanation:

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2 years ago
Suppose that the number of drivers who travel between a particular origin and destination during a designated time period has a
andrew11 [14]

Answer:

Step-by-step explanation:

Given that the number of drivers who travel between a particular origin and destination during a designated time period has a Poisson distribution with parameter μ = 20 (suggested in the article "Dynamic Ride Sharing: Theory and Practice"†).

a) P(X\leq 15) = 0.1565=0.157

b) P(X>26) =1-F(26)\\= 1-0.9221\\=0.0779=0.078

c) P(15\leq x\leq 26)\\=F(26)-F(14)\\=0.9221-0.1049\\=0.8172=0.817

d) 2 std dev = 2(20) =40

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20-40, 20+40

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P(0

5 0
3 years ago
Solve for x.<br><br> −3x + 2b &gt; 8
RoseWind [281]
I think the answer is
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x < 2b/3 - 8/3
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3 years ago
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PLZ HELP ASAP! Brainiest if you answer all the questions and 50POINTS!
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Answer:A

Step-by-step explanation:

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3 years ago
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