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Radda [10]
3 years ago
13

Solve 3x2 − 7x − 2 = 0.

Mathematics
1 answer:
Daniel [21]3 years ago
8 0

The answer think will be x=4/7

Or 4-7x

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In analyzing hits by certain bombs in a​ war, an area was partitioned into 553 ​regions, each with an area of 0.95 km2. A total
Leto [7]

Answer:

Probability of having two hits in the same region = 0.178

mu: average number of hits per region

x: number of hits

e: mathematical constant approximately equal to 2.71828.

Step-by-step explanation:

We can describe the probability of k events with the Poisson distribution, expressed as:

P(x=k)=\frac{\mu^ke^{-\mu}}{k!}

Being μ the expected rate of events.

If 535 bombs hit 553 regions, the expected rate of bombs per region (the events for this question) is:

\mu=\frac{\#bombs}{\#regions} =\frac{535}{553}= 0.9674

For a region to being hit by two bombs, it has a probability of:

P(x=2)=\frac{\mu^2e^{-\mu}}{2!}=\frac{0.9674^2e^{-0.9674}}{2!}=\frac{0.9359*0.38}{2}=0.178

4 0
3 years ago
Alaska has a Land area of about 1,700,000 square kilometers. Florida has a land area 1 10 the size of Alaska. What is the land
xenn [34]
 The answer to your question is: 187,000,000 because 110 x 170,000,000
6 0
3 years ago
I know I'm like helping many, but I still need help too people's so please help
quester [9]
Sylvia is correct because a right triangle needs to have 1 right angle and 2 acute angles, it cannot have more than 1 right angle.
6 0
3 years ago
A bicyclist travels at a constant speed of 12 miles per hour for a total of 45 minutes. Use set notations for the domain and ran
Mama L [17]

A bicyclist travels at a constant speed of 12 miles per hour for a total of 45 minutes

Domain x is number of hours

Range y is distance traveled

speed = 12 miles per hour

time = 45 minutes = \frac{45}{60} = 0.75 hours

We know distance formula

Distance = speed * time

Distance = 12 * 0.75= 9 miles

Number of hours x is 0 to 0.75 hours

So domain is { x | 0}

Distance is 0 to 9 miles

So range is { x | 0}

5 0
3 years ago
The rectangle below has a height of 5 meters and a base of 8 meters. What is the area of the triangle inscribed inside?
pogonyaev

Answer:

20

Step-by-step explanation:

formula for triangle= 1/2*base*height

=1/2*8*5

=20

8 0
3 years ago
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