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Natali [406]
2 years ago
10

What is

="absmiddle" class="latex-formula">
6280 \div 30
​
Mathematics
1 answer:
marishachu [46]2 years ago
8 0
The first one is132.8
The second one is209.3
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I need help on how to do combinations
Veronika [31]
Ok sure! Let's start with the marbles first. We have one red one blue and one green. There is a red and a blue cube. All we do is list the possible combinations of one marble and one cube. The answer would be : 1 blue marble, 1 blue cube. 1 red marble, 1 blue cube. 1 green marble, 1 blue cube. Then again but with the red cube. So in all, there are 6 possible combinations. Hope this helps. ☺️
3 0
2 years ago
The annual 2-mile fun-run is a traditional fund-raising event to support local arts and sciences activities. It is known that th
victus00 [196]

Answer: 0.0228

Step-by-step explanation:

Given : The  mean and the standard deviation of finish times (in minutes) for this event are respectively as :-

\mu=30\\\\\sigma=5.5

If the distribution of finish times is approximately bell-shaped and symmetric, then it must be normally distributed.

Let X be the random variable that represents the finish times for this event.

z score : z=\dfrac{x-\mu}{\sigma}

z=\dfrac{19-30}{5.5}=-2

Now, the probability of runners who finish in under 19 minutes by using standard normal distribution table :-

P(X

Hence, the approximate proportion of runners who finish in under 19 minutes = 0.0228

8 0
2 years ago
The graph represents a function related to a train's movement over time.
siniylev [52]

Answer:

Where is the question?

Step-by-step explanation:

8 0
3 years ago
Which equation represents a circle that contains the point (-5,-3) and has a center at (-2,1)
MatroZZZ [7]

Answer:

The equation of circle is:

Solution:

The general form of equation is given as:

Where, "r" is radius of circle and (a, b) is center of circle

Given that center at (-2, 1)

a = -2 and b = 1

Substitute (a , b) = (-2, 1) and (x, y) = (-5, -3) in general equation

Substitute r = 5 and (a, b) = (-2, 1) in general equation

Thus the equation of circle is found

4 0
3 years ago
Which of the following describes a linear function
liq [111]

Answer:

D

Step-by-step explanation:

Linear function means that the y values depend upon the x values and any other numbers that are being added to it.

3 0
3 years ago
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