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mrs_skeptik [129]
2 years ago
15

Solve equation 1102 Base 3= 212 Base n​

Mathematics
1 answer:
Norma-Jean [14]2 years ago
8 0

Answer: 4

Step-by-step explanation:

1102_{3}=2+0(3)+1(9)+1(27)=38\\\\212_{n}=2+1(n)+2(n^2)=2n^2 + n+2\\\\\implies 2n^2 + n+2=38\\\\2n^2 + n-36=0\\\\(n-4)(2n+9)=0\\\\n=-\frac{9}{2}, 4

However, as the base must be positive, n=4.

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Which equation does not represent a direct variation?
tatuchka [14]
Okay I think there has been a transcription issue here because it appears to me there are two answers. However I can spot where some brackets might be missing, bear with me on that.

A direct variation, a phrase I haven't heard before, sounds a lot like a direct proportion, something I am familiar with. A direct proportion satisfies two criteria:

The gradient of the function is constant s the independent variable (x) varies

The graph passes through the origin. That is to say when x = 0, y = 0.

Looking at these graphs, two can immediately be ruled out. Clearly A and D pass through the origin, and the gradient is constant because they are linear functions, so they are direct variations.

This leaves B and C. The graph of 1/x does not have a constant gradient, so any stretch of this graph (to y = k/x for some constant k) will similarly not be direct variation. Indeed there is a special name for this function, inverse proportion/variation. It appears both B and C are inverse proportion, however if I interpret B as y = (2/5)x instead, it is actually linear.

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I hope this helps you :)
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4 years ago
12.
g100num [7]

Answer:

Step-by-step explanation:

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3 years ago
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irina [24]
Using how tall it is over how wide
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5 0
3 years ago
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Answer:

numerator

Step-by-step explanation:

.,.............

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3 years ago
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