3 years ago

How many solutions does the following system of equations have? v=x+2 2y=5x18

Mathematics

1 answer:

geniusboy [140]3 years ago

6 0

Answer:

gbn

Step-by-step explanation:

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Help anyone ;) Will mark brainliest! Thank you sm <3

Alenkinab [10]

Answer:

the first one is a and the second one is 1750 revolutions per minute

Step-by-step explanation:

8 0

3 years ago

3x² + 8x - 4=0 Use the quadratic formula to solve the equation

Lisa [10]

Answer:

x=4/14

Step-by-step explanation:

step one:

3x^2+8x-4=0 turns into -

6x+8x-4=0

Step two:

6x+8x-4=0 turns into -

14x-4=0 because you have to combine like terms

Step three:

14x-4= 0 turns into

14x=4 to get x by itself

Step four:

14x=4 turns into -

x=4/14

5 0

3 years ago

Read 2 more answers

5/9*18/25 i need help

Akimi4 [234]

Answer:

$\frac{2}{5}$

Step-by-step explanation:

$\frac{5}{9} * \frac{18}{25} = \frac{5 * 18}{9 * 25} = \frac{90}{225} = \frac{45 * 2}{45 * 5} = \frac{2}{5}$

4 0

4 years ago

give an example of parallel lines in the real world. then describe how you could prove that lines are parallel.

worty [1.4K]

Answer:

An example would be the way that the shelves of a bookcase are positioned, they are parallel. Parallel lines are two or more lines that when drawn out infinitely long never intersect.

Step-by-step explanation:

6 0

3 years ago

Rearrange then factorise x^2-5x+19=5x+3

Tema [17]

Answer:

x = ±4i or x = ±√-16

Step-by-step explanation:

x² - 5x + 19 = 5x + 3

x² + 16 = 0

x² = -16

x = ±√-16 (a negative square root is an imaginary number)

4 0

3 years ago