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sladkih [1.3K]
3 years ago
15

Determine if the following system of equations has no solutions, infinitely many

Mathematics
2 answers:
harina [27]3 years ago
6 0

Answer:

B) Infinitely Many

Step-by-step explanation:

0 = 0

Cerrena [4.2K]3 years ago
3 0

Answer:

Step-by-step explanation:

Combine the equations

-3x + 2y = -8

3x – 2y = 8

obtaining:

-3x + 2y = -8  

3x – 2y = 8

-------------------

  0 + 0 = 0

Since this is always true, this system  has an infinite number of solutions (B)

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Can two obtuse angles be complementary
Norma-Jean [14]

Complementary angles are angles that add up to 90 degrees. 

Obtuse angles are greater than 90 degrees, so there's no way
to add two of them together and get a sum that's smaller than
either one already is. 

The answer to the question is 'No'.
8 0
3 years ago
In a cave, a stalactite gets 44 millimeters longer each year. this year it is 72 centimeters long. how many years until it is 1
iragen [17]

Answer:

6.36 years (the .36 repeats), so rounded is 6.4.

Step-by-step explanation:

First, I'm going to convert all measurements to meters.

Since 1000 mm = 1 m, divide 44 by 1000.

44/1000 = 0.044 m

Since 100 cm = 1 m, divide 72 by 100.

72/100 = 0.72 m

Next, I'm going to setup an equation using y = mx + b.

b is the beginning amount which is 0.72.

m in the equation represents the rate which is 0.044.

y represents the total which is 1.

Plugin the numbers and solve for x.

1 = 0.044x + 0.72

1 - 0.72 = 0.044x + 0.72 - 0.72

0.28 = 0.044x

0.28/0.044 = 0.044x/0.044

6.36 = x

7 0
2 years ago
( 2 x - 3 ) ( 7 x + 4)
weeeeeb [17]

Answer:5x times -7

Step-by-step explanation:

You ignore the brackets and move the 2x to the other side. Then move the 4 to the other side

3 0
3 years ago
The mean temperature for the first 4 days in january was -8 °C.
castortr0y [4]
Hey user

the answer to this is going to be 


2 c


hope this helped

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8 0
3 years ago
The area of the triangle
Sonja [21]

Answer:

100.763 (cm.²)

Step-by-step explanation:

1. the formula of the required area is:

A=\frac{1}{2} *side_1*side_2*sin45;

2. according to  the formula above:

A=0.5*15*19/√2≈100.763

4 0
2 years ago
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