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chubhunter [2.5K]
3 years ago
12

If f(x) = 2x2 + 7, find f(-3) = What’s the f(-3)

Mathematics
2 answers:
emmasim [6.3K]3 years ago
6 0
Answer:
43
Step by step:
f(x)=2x^2+7
f(3)=2(3)^2+7
f(3)=6^2+7
f(3)=36+7
f(3)=43
Allisa [31]3 years ago
5 0

Answer:

replace the x with -3

Step-by-step explanation:

if you ever have f(x) = 'insert equation' and then it says find f('insert number'), you replace what ever variable is after the first 'f' with the number after the second 'f'. hope this helped!

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Answer:

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Step-by-step explanation:

Notice that you are in a case of an obtuse triangle (one of its angles is larger than 90 degrees), the side opposite to the obtuse triangle is shorter than the side adjacent to the angle, so no actual triangle can be formed.

This can be found by simply trying to apply the Law of Sines to solve for the value of angle "B" opposite to side "b":

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Therefore, there is no angle we can find to build a triangle with the given data.

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3 years ago
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sleet_krkn [62]

Answer:

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