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LenKa [72]
2 years ago
14

Plz help me well mark brainliest!!

Mathematics
2 answers:
baherus [9]2 years ago
8 0

Answer:

735 mm³

Step-by-step explanation:

49 x 15 = 735

mars1129 [50]2 years ago
6 0

Answer:

735mm

Step-by-step explanation:

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Quadratic<br>Factorisation<br>3x + 7x+ 2<br>x+2x-35<br> 2x + 5x<br>-12<br>​
irinina [24]

Answer:

what exactly are you asking?

I am very good at math so I can help you but I dont understand the question you are asking, I need more information.

Step-by-step explanation:

6 0
3 years ago
Each day, Robin commutes to work by bike with probability 0.4 and by walking with probability 0.6. When biking to work injuries
kvasek [131]

Answer:

64.65% probability of at least one injury commuting to work in the next 20 years

Step-by-step explanation:

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}&#10;

In which

x is the number of sucesses

e = 2.71828 is the Euler number

\mu is the mean in the given interval.

Each day:

Bikes to work with probability 0.4.

If he bikes to work, 0.1 injuries per year.

Walks to work with probability 0.6.

If he walks to work, 0.02 injuries per year.

20 years.

So

\mu = 20*(0.4*0.1 + 0.6*0.02) = 1.04

Either he suffers no injuries, or he suffer at least one injury. The sum of the probabilities of these events is decimal 1. So

P(X = 0) + P(X \geq 1) = 1

We want P(X \geq 1). Then

P(X \geq 1) = 1 - P(X = 0)

In which

P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}&#10;

P(X = 0) = \frac{e^{-1.04}*1.04^{0}}{(0)!} = 0.3535&#10;

P(X \geq 1) = 1 - P(X = 0) = 1 - 0.3535 = 0.6465

64.65% probability of at least one injury commuting to work in the next 20 years

3 0
3 years ago
What is the distance, in units, between (3, -5) and (8, 7) in the coordinate plane?
Rufina [12.5K]
Yes, 13 is correct
If you draw the right triangle, the two legs will be 5 and 12.
5 and 12 are parts of a Pythagorean triple. 13 completes the triplet.
4 0
3 years ago
Does 2x+4=3x+1/2 have one solution or more or none?
Contact [7]

Answer:

one solution the solution being ×=7/2

Step-by-step explanation:

one solution

3 0
2 years ago
The average age of a preschool class is 4.5 years old. If there is one 3-year-old, five 5-year-olds, and two other children both
kompoz [17]

Answer:

3.1

Step-by-step explanation:

5 x5 =25

25+3=28

8 0
2 years ago
Read 2 more answers
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