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Svetach [21]
3 years ago
6

Is this a function?

Mathematics
2 answers:
elena-s [515]3 years ago
5 0
No, because it does not pass the vertical line test.
Mnenie [13.5K]3 years ago
3 0

Answer:

NO

Step-by-step explanation:

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Help, with solving rational equations! I am no good at it :( Solve for x: 2 over 5 plus 3 over 5 x equals quantity x plus 5 over
mamaluj [8]
If this is your equation: \frac{2}{5} + \frac{3}{5x} = \frac{x+5}{10}
Solution:
LCD for 5 and 5x is 5x
\frac{x}{x} ( \frac{2}{5} )+ \frac{3}{5x} = \frac{x+5}{10}
\frac{2x}{5x} + \frac{3}{5x} = \frac{x+5}{10}
\frac{2x+3}{5x} = \frac{x+5}{10}
10(2x+3)=5x(x+5) ←cross product
20x + 30 = 5x² + 25x  ←simplify with distributive property
0 = 5x² + 5x - 30 ←use inverse operations to collect all terms on one side
0 = x² + x - 6  ←if possible divide by numerical GCF (This case 5)
0 = (x + 3)(x - 2) ←Factor
x = -3 or x = 2
Please check by substitution in original equation... Both work
4 0
3 years ago
Suppose that the amount of algae in a pond dobles every 6 hours. If the pond initially contains 50 ponds of algae, how much alga
Vikki [24]
Well we know the algae doubles three times.
So take 50 x 2 = 100
take 100 x 2= 200
200 x 2 = 400

So the answer is A
5 0
3 years ago
A glass plummet weighs 14.35 g in air 5 points 11.40 g when immersed in water, and 8.95 g when immersed in sulfuric acid. Calcul
elena-s [515]

Answer:

0.865

Step-by-step explanation:

Specific gravity is a ratio of the weight of a substance to the weight of an equal volume of a substance chosen as a standard. The standard for liquid and solids is water while for gas is hydrogen.

Amount of displaced oil = 12.64 g — 9.12 g = 3.52 g

Amount of displaced water = 12.64 g — 8.57 g = 4.07 g

Specific gravity of oil = 3.52 g / 4.07 g = 0.865

6 0
3 years ago
See if you guys can figure this out.
Aleonysh [2.5K]
There isn't anything there
6 0
3 years ago
Suppose that you measure a pen to be 10.6 cm long. Convert this to meters. Express the length in meters to three significant fig
Travka [436]

Use dimensional analysis:

\frac{10.6cm}{1}*\frac{1m}{100cm}=0.106m

Since we multiplied a numerator and a denominator by centimeters, we are only left with meters.

This answer is already is three significant figures by default.

7 0
3 years ago
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