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9966 [12]
3 years ago
15

If you flip a coin 8 times, what is the best prediction possible for the number of times it will land on tails?

Mathematics
1 answer:
Eduardwww [97]3 years ago
3 0

Answer:

Step-by-step explanation:

2! ¨6! “1`8`28“37. Since there are a total of 28“256 possible outcomes, the number of outcomes which contain at least three heads is 256´37“219.

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a port and a radar station are 2 mi apart on a straight shore running east and west. a ship leaves the port at noon traveling no
Rom4ik [11]

Answer:

The rate of change of the tracking angle is 0.05599 rad/sec

Step-by-step explanation:

Here the ship is traveling at 15 mi/hr north east and

Port to Radar station = 2 miles

Distance traveled by the ship in 30 minutes = 0.5 * 15 = 7.5 miles

Therefore the ship, port and radar makes a triangle with sides

2, 7.5 and x

The value of x is gotten from cosine rule as follows

x² = 2² + 7.5² - 2*2*7.5*cos(45) = 39.04

x = 6.25 miles

By sine rule we have

\frac{sin A}{a} = \frac{sin B}{b}

Therefore,

\frac{sin 45}{6.25} = \frac{sin \alpha }{7.5}

α = Angle between radar and ship α

∴ α = 58.052

Where we put

\frac{sin 45}{6.25} = \frac{sin \alpha }{x} to get

\frac{x}{6.25} = \frac{sin \alpha }{sin 45} and differentiate to get

\frac{\frac{dx}{dt} }{6.25} = cos\alpha\frac{\frac{d\alpha }{dt}  }{sin 45}

\frac{15sin45 }{6.25cos\alpha } =\frac{d\alpha }{dt}  }= 3.208 degrees/second = 0.05599 rad/sec.

6 0
3 years ago
If granola costs $2.40 per pound, how much does 0.9 pound of granola cost?
Mnenie [13.5K]
$2.16 per 0.9 pounds of granola

8 0
3 years ago
Read 2 more answers
Please answer this correctly without making mistakes
andrew-mc [135]

Answer:

14.3 km

Step-by-step explanation:

Using the paths shown, we would need to add the path length from Belmont to Yardley and Yardley to Oxford. When we add 8.5 and 5.8, we get 14.3 km.

Hence,

the distance from Belmont to Oxford is 14.3 km.

Hope this helps!!! PLZ MARK BRAINLIEST!!!

3 0
3 years ago
Let log p/n=6 and log m/n=8 what is the relationship between p and m?
Mrac [35]
By the laws of logs
log p/n =  log p - log n  = 6
log m/n = log m - log n   = 8        subtract
 
 log m - log p =  2
 
log m/p = 2

So m / p = 100 
6 0
4 years ago
Read 2 more answers
ASAP!!!<br> Which function has a range of {y | y 2 -10}?
4vir4ik [10]

Answer:

It’s B. (y=√x-5 - 10)

Step-by-step explanation:

I used a math app soooo yeah— hope this helps ya’ll.

4 0
3 years ago
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