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irina [24]
3 years ago
13

35 POINTS

Mathematics
2 answers:
Artemon [7]3 years ago
5 0

Answer:

<em>there are parrele</em>

Step-by-step explanation:

dmitriy555 [2]3 years ago
3 0
If the lines are parallel, they have no solutions because they never touch
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Solve the following system of equations.<br> 4x-2y-z=-5<br> x-3y+2z=3<br> 3x+y-2z=-5
Stels [109]
4x - 2y - z = - 5 ______×2x - 3y + 2z = 3 _______×13x + y - 2z = - 5 ______×1
8x - 4y - 2z = - 10x - 3y + 2z = 33x + y - 2z = - 5
8x - 4y - 2z = - 10(+) x - 3y + 2z = 3_____________9x - 7y = - 77y = 9x + 7y = 9/7x + 1
x - 3y + 2z = 3(+) 3x + y - 2z = - 5_____________4x - 2y = - 24x - 2(9/7x + 1) = - 24x - 18/7x - 2 = - 210/7x = 0x = 0
y = 9/7(0) + 1y = 1
0 - 3(1) + 2z = 32z = 6z = 3
3 0
3 years ago
A roll of ribbon is used to tie 12 gifts which will be given to teachers on Teacher's
Wewaii [24]

Answer:

22.2m

Step-by-step explanation:

1 roll to 12 gifts

one gifts uses 1,85m of ribbon

1,85m is the length

12 × 1.85 = 22.2m

3 0
2 years ago
As part of a traffic safety campaign a speed detector was used to record speed in the entrance driveway to the Jefferson High Sc
Firlakuza [10]
<span>1. The highest speed is 39 mph. 2. 50 percent of the students drove between 15 and 28 mph. 3. A box and whisker plot shows the median speed. 4. 20 is the median speed for this data set. 5. A box and whisker plot is helpful in plotting variations in data and making it easy to read. It is also useful when there are multiple sets of data.</span>
5 0
3 years ago
Suppose that you and a friend are playing cards and you decide to make a friendly wager. The bet is that you will draw two cards
Serjik [45]

Answer:

Step 1: Expected value = -2.53 dollars

He makes - 1,803.89 dollars over 713 of these bets.

Step 2:

Step-by-step explanation:

Expected value of bet = (Winning probability * winning amount) - (losing probability * losing amount)

Winning probability = (13/52) * (12/51) = 0.0588

Losing probability = 1 - 0.0588 = 0.9412

Expected value = (37 * 0.0588) - (5 * 0.9412)

Expected value = -2.53 dollars

If this same bet of expected value -2.53 dollars is made 713 times, our expected losses are:

2.53 * 713 = 1,803.89 dollars

Thus he makes - 1,803.89 dollars over 713 of these bets.

5 0
3 years ago
What are translations, Reflections, and Rotations also known as
alukav5142 [94]

Answer:

The are known as rigid transformations

Step-by-step explanation:

8 0
3 years ago
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