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bekas [8.4K]
3 years ago
15

I need this done fast please!!!!!

Mathematics
1 answer:
4vir4ik [10]3 years ago
6 0

Answer:

The first one

Step-by-step explanation:

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The element silicon has a molar mass of 28.09 g/mol. Calculate the mass of 0.15 mol of Silicon.
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drek231 [11]

Answer:

A

Step-by-step explanation:

y = (-2/5)x + 1

By inspection of the equation, the slope of the line is -2/5 and the y-intercept is 1.

Therefore, we can immediately discount option B and D, as their y-intercepts are NOT 1.

Find the point where the line crosses the x-axis by setting the equation to 0 and solving for x:

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Therefore, the line of the function intersects the x-axis at x = 5/2 = 2.5

From inspection of the graphs, the line in option A intersects the x-axis at 2.5.  Therefore, this is the correct graph.

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2 years ago
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pishuonlain [190]
The answer is D) {-1,-6}
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What is the radius of the base of the cylinder 42in and 36 in
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