3 years ago

Plot the x-intercept of the function f(x)=(x+4)2

Mathematics

2 answers:

anastassius [24]3 years ago

8 0

This is the answer.

-4,0

olga55 [171]3 years ago

3 0

Answer:the answer is -4

Step-by-step explanation:

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In a circle with a radius of 27 2/5 in., an arc is intercepted by a central angle of 7π/4 radians. What is the arc length? Use

nexus9112 [7]

$\bf \textit{arc's length}\\\\
s=r\theta \quad 
\begin{cases}
r=radius\\
\theta =angle~in\\
\qquad radians\\
------\\
r=27\frac{2}{5}\\
\theta =\frac{7\pi }{4}
\end{cases}\implies s=27\frac{2}{5}\cdot \cfrac{7\pi }{4}\implies s=\cfrac{27\cdot 5+2}{5}\cdot \cfrac{7\pi }{4}
\\\\\\
s=\cfrac{137}{5}\cdot \cfrac{7\pi }{4}\implies s=\cfrac{959\pi }{20}$