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Novosadov [1.4K]
3 years ago
11

2. Find f(-1). f(x) = x2-4x+2 X+7 Round your answer to the nearest hundredth.

Mathematics
1 answer:
natka813 [3]3 years ago
6 0

Step-by-step explanation:

f(x)=\dfrac{x^2-4x+2}{x+7}\\\\f(-1)=\text{put}\ x=-1\ \text{to}\ f(x):\\\\f(-1)=\dfrac{(-1)^2-4(-1)+2}{-1+7}=\dfrac{1+4+2}{6}=\dfrac{7}{6}

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What is the value of this expression when a = 3 and b = negative 2? (StartFraction 3 a Superscript negative 2 Baseline b Supersc
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PLEASE PLEASE HELP ​
nekit [7.7K]

Answer:68.3 degrees

Step-by-step explanation:

The diagram of the triangle ABC is shown in the attached photo. We would determine the length of side AB. It is equal to a. We would apply the cosine rule which is expressed as follows

c^2 = a^2 + b^2 - 2abCos C

Looking at the triangle,

b = 75 miles

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Angle ACB = 180 - 42 = 138 degrees. Therefore

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8 0
3 years ago
URGENT! WILL GIVE BRAINLIEST!!!!
user100 [1]
Hello There!

85 / 4 = 21.25

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Hope this helps!
4 0
3 years ago
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