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Grace [21]
3 years ago
13

Assume that X has a normal distribution, and find the indicated probability.

Mathematics
1 answer:
GrogVix [38]3 years ago
6 0

Answer: 0.6827

Step-by-step explanation:

I believe it is 0.6827

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Simplify and determine the coefficient of (-2/5x)(5y)(-2x).
Juli2301 [7.4K]
Solution/Answer : 4

Solution: the first you do is multiply the last two parentheses to get -10xy


Now we are left with ( -2/5x)(-10xy)
Then we multiply that out into
(-2*-10)/5*x^2y = 20/5x^2y =
4x^2y

The coefficient in this case would be four. (In case you were confused about what a coefficient actually is, it’s the number you multiply a variable by)

Hopes this helps :)

4 0
2 years ago
84.8 divided by blank = 10.6
enot [183]
I believe the blank would equal the number 8
8 0
4 years ago
Read 2 more answers
Nina and Jo both ran a 13 km race.
yKpoI14uk [10]

We will see that Jo's speed, rounded to 2 digit places, is:

S =  6.42 km/h

<h3>How to get Jo's speed?</h3>

Remember that:

<em>speed = distance/time.</em>

Nina takes 2 hours and 10 minutes to finish the race, first, let's write the time in hours:

1 hour = 60 min.

Then:

10 min = (10/60) hours = 0.167 hours.

So we can write the time as:

2.167 hours.

And the distance is 13km, so her speed is:

S = 13km/2.167h = 6 km/h

The time that she takes to reach a distance of 11km (where she meets with Jo) is:

T = 11km/(6 km/h) = 1.83 hours.

Now, Jo starts 7 minutes after Nina, then the time in which he travels the 11 km is:

1.83 hours - 7 minutes.

Where:

7 min = (7min/60 min) hours = 0.117h

Then the time is:

T= 1.83h - 0.117h = 1.713 hours.

So he travels 11km in 1.713 hours, then his speed is:

S = 11km/ 1.713 hours = 6.42 km/h

If you want to learn more about speed:

brainly.com/question/4931057

#SPJ1

6 0
2 years ago
Use the simple interest formula to find the ending balance.
devlian [24]
A = 4000(1 + [0.065 * 5])
A = $5300
8 0
3 years ago
Find the value of x and the unknown angle in each problem
Gnom [1K]
Hello!

Angle POQ and angle MON are vertical which means they are congruent

x - 28 = 149

Add 28 to both sides

x = 177

Angle NOQ and angle NOM are supplementary meaning they add to 180

NOQ + NOM = 180

Put in the known angle

NOQ + 149 = 180

Subtract 149 from both sides

NOQ = 31

The answers are x = 177 and angle NOQ = 31

Hope this helps!
4 0
3 years ago
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