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3 years ago

Kindly help me out..................

Mathematics

2 answers:

kenny6666 [7]3 years ago

4 0

Answer:

The second function represents an even function; $g(x)=2x^{2} +1$

Step-by-step explanation:

A function f(x) is said to be even if f(x) = f(-x). All we need to do is replace x with -x in each equation, simplify it and assess whether the equation remains unchanged. If the equation is identical to the original one then it is said to be even. Another good example of an even function is the cosine function. Moreover, even functions have y-axis symmetry

Masteriza [31]3 years ago

4 0

Answer:

Choice B is correct answer.

Step-by-step explanation:

We have given four functions.

We have to choose the even function.

A function is even when

f(x) = f(-x)

A. g(x) = (x-1)²+1

g(-x) = (-x-1)²+1

g(-x) ≠ g(x)

B. g(x) = 2x²+1

g(-x) = 2(-x)²+1

g(-x) = 2x²+1

hence, g(x) = g(-x)

C. g(x) = 4x+2

g(-x) = 4(-x)+2

g(-x) = -4x+2

hence, g(-x) ≠ g(x)

D. g(x) =2x

g(-x) = 2(-x)

g(-x) = -2x

hence, g(-x) ≠ g(x)

Choice B is correct answer.

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Answer:

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Step-by-step explanation:

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7 0

3 years ago

Read 2 more answers

Please help me with precalculus??<br>linear and angular speed

Anit [1.1K]

13)

there are 2π radians in 1 revolution, and there are 60 seconds in 1 minute, so keeping that in mind, then,

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14)

$\bf \textit{linear velocity}\\\\
v=rw\quad 
\begin{cases}
r=radius\\
w=angular~speed\\
----------\\
v=32\frac{m}{sec}\\
w=100\frac{rev}{min}
\end{cases}\\\\
-------------------------------\\\\
\textit{let's convert \underline{w} to }\frac{radians}{sec}$

$\bf \cfrac{100~\underline{rev}}{\underline{min}}\cdot \cfrac{2\pi }{\underline{rev}}\cdot \cfrac{\underline{min}}{60~sec}\implies \cfrac{100\cdot 2\pi }{60~sec}\implies \cfrac{10\pi }{3~sec}\implies \cfrac{10\pi }{3}\frac{radians}{sec}\\\\
-------------------------------\\\\
v=rw\implies \cfrac{v}{w}=r\implies \cfrac{\frac{30~m}{sec}}{\frac{10\pi }{3~sec}}\implies r=\cfrac{30~m}{\underline{sec}}\cdot \cfrac{3~\underline{sec}}{10\pi }
\\\\\\
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what is the radians per seconds "w" in revolutions per minute? just another conversion like in 13)

$\bf \cfrac{\underline{\pi} }{3~\underline{sec}}\cdot \cfrac{rev}{2\underline{\pi }}\cdot \cfrac{60~\underline{sec}}{min}\implies \cfrac{60 ~rev}{3\cdot 2 ~min}\implies \cfrac{60 ~rev}{6 ~min}\implies 10\frac{rev}{min}$

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4 years ago

Solve the measure of an angle is 161°. what is the measure of a supplementary angle?

lions [1.4K]

Supplementary angles sum up to 180°, suppose the supplement of 161° is x. Then
161+x=180
solving for x we subtract 161 from both sides
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3 years ago

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Simora [160]

Answer:

Step-by-step explanation:

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2 years ago

Please give a explanation :)<br> i will mark as brainliest!!

Fynjy0 [20]

Answer:

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Step-by-step explanation:

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3 years ago