3 years ago

Is this a function? Explain your thinking.

Mathematics

1 answer:

kodGreya [7K]3 years ago

3 0

Step-by-step explanation:

You can tell whether a relation is a function by plotting the numbers on a graph and applying the vertical line test. If no vertical line passing through the graph intersects it at more than one point, the relation is a function.

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TEA [102]

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3 years ago

What is the result when 16x + 9 is subtracted from 4x + 6

romanna [79]

Answer:

(4x+9)-(16x+9) = 4x+9-16x-9

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How do you write this statement as a equation? 2 more than 3 times a number is 17

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Read 2 more answers

Could someone help me with this trigonometry question.

Aleksandr-060686 [28]

Answer:

About 75 degrees

Step-by-step explanation:

Let's call the point between C and B D. Using the Pythagorean Theorem, you know that CD is $\sqrt{112}$ cm, meaning that BC has length $8+\sqrt{112}$ cm. Additionally, we know that AB has length $\sqrt{208}$ . Using the law of cosines:

$(8+\sqrt{112})^2=16^2+208-2(16)(\sqrt{208})\cdot \cos(A) \\\\345.328=256+208-461.511\cos(A) \\\\-461.511\cos(A)=-118.672 \\\\A=\cos^{-1}(0.2571)\approx 75^{\circ}$

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3 years ago

Lisa [10]

Answer:

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Step-by-step explanation:

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