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Svetllana [295]
3 years ago
11

2x-y=-4-2x+y=3How to solve using systems elimination ​

Mathematics
1 answer:
VikaD [51]3 years ago
4 0
Two -2x and 2x cancel out since there opposites

As well as y

Then your answer should be 0=-1
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If f(x) = ||x|| , find f(−14)
bogdanovich [222]

Answer:

14

Step-by-step explanation:

f(-14) = ||-14|| = |14| = 14

3 0
3 years ago
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What is an equation of the line that passes through the point (-6, -7) and is
Alexandra [31]

Answer:

Step-by-step explanation:

Product of slope of perpendicular lines = -1

6x + 5y = 30

Write this equation in y = mx + b  form

        5y = -6x + 30

          y = \frac{-6}{5}x+\frac{30}{5}

          y=\frac{-6}{5}x + 6

Slope of this line m₁ = -6/5

m₁ * m₂ = -1

      m₂ = -1÷m₁ = -1 * \frac{5}{-6}  

m_{2}=\frac{5}{6}     & (-6 , -7)

Equation of the required line: y - y₁ = m (x - x₁)

y - (-7) = \frac{5}{6}(x - [-6])\\\\y + 7 = \frac{5}{6}x + 6 *\frac{5}{6}\\\\y = \frac{5}{6}x +5-7\\\\y=\frac{5}{6}x-2

8 0
3 years ago
A roulette wheel has 38 pockets numbered 0,00,and 1 to 36. Of all 38 pockets 18 are red, 18 are black and 2 are green. Each time
Fiesta28 [93]

Answer:

P(R) = (18/38)

P(G) = (2/38)

P(B) = (18/38)

Step-by-step explanation:

Each spin is independent of the others, so the probabilities of the three possible outcomes (R,G,B) for each spin are:

P(R) = (18/38)

P(G) = (2/38)

P(B) = (18/38)

4 0
3 years ago
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alexandr402 [8]

Answer:

yes

Step-by-step explanation:

If x = 5,

4x=4*5=20

15+x=15+5=20

They're both the same.

4 0
3 years ago
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A prize machine randomly dispenses small toys. There are 15
Natasha_Volkova [10]
The probability is 1/5 (or if you want it in decimals then it is 0.2) (if you want it in percent then it is 20%)

Hope that helped!!!
3 0
3 years ago
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