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3 years ago

Can someone help me please

Mathematics

1 answer:

Kay [80]3 years ago

4 0

Answer:

the number that is not rational is -3.1311331113...

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Which expressions have an estimated quotient of 200? Select all that apply.

marta [7]

Answer:

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3 years ago

Find the area of the composite figure. Use 3.14 for pi.

german

Answer:

118.5in

Step-by-step explanation:

Acircle=πr2

=π5^2

=78.5

Arectangle = l *w

= 10*4

3 0

3 years ago

What is the period of the sinusoid given by y=-4sin( <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B2%CF%80%7D%7B3%7D%20" id="Te

Sonja [21]

$\bf \qquad \qquad \qquad \qquad \textit{function transformations}
\\ \quad \\
% function transformations for trigonometric functions
\begin{array}{rllll}
% left side templates
f(x)=&{{ A}}sin({{ B}}x+{{ C}})+{{ D}}
\\\\
f(x)=&{{ A}}cos({{ B}}x+{{ C}})+{{ D}}\\\\
f(x)=&{{ A}}tan({{ B}}x+{{ C}})+{{ D}}
\end{array}
\\\\
-------------------\\\\$

$\bf \bullet \textit{ stretches or shrinks}\\
\left. \qquad \right. \textit{horizontally by amplitude } |{{ A}}|\\\\
\bullet \textit{ flips it upside-down if }{{ A}}\textit{ is negative}\\
\left. \qquad \right. \textit{reflection over the x-axis}
\\\\
\bullet \textit{ flips it sideways if }{{ B}}\textit{ is negative}\\
\left. \qquad \right. \textit{reflection over the y-axis}$

$\bf \bullet \textit{ horizontal shift by }\frac{{{ C}}}{{{ B}}}\\
\left. \qquad \right. if\ \frac{{{ C}}}{{{ B}}}\textit{ is negative, to the right}\\\\
\left. \qquad \right. if\ \frac{{{ C}}}{{{ B}}}\textit{ is positive, to the left}\\\\
$

$\bf \bullet \textit{vertical shift by }{{ D}}\\
\left. \qquad \right. if\ {{ D}}\textit{ is negative, downwards}\\\\
\left. \qquad \right. if\ {{ D}}\textit{ is positive, upwards}\\\\
\bullet \textit{function period or frequency}\\
\left. \qquad \right. \frac{2\pi }{{{ B}}}\ for\ cos(\theta),\ sin(\theta),\ sec(\theta),\ csc(\theta)\\\\
\left. \qquad \right. \frac{\pi }{{{ B}}}\ for\ tan(\theta),\ cot(\theta)$

with that template in mind, let's see

$\bf \begin{array}{llll}
y=&-4sin(&\frac{2\pi }{3}x)\\
&A&B
\end{array}\qquad period\implies \cfrac{2\pi }{B}\implies \cfrac{2\pi }{\frac{2\pi }{3}}\implies \cfrac{\frac{2\pi }{1}}{\frac{2\pi }{3}}
\\\\\\
\cfrac{2\pi }{1}\cdot \cfrac{3}{2\pi }\implies 3$

8 0

3 years ago

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Find the solution set 3x^2+5x+2=0

Elis [28]

Answer: x = -1, and x = -2/3

Step-by-step explanation:

3x^2+5x+2=0

(x+1)(3x+2) = 0

x = -1, and x = -2/3

8 0

3 years ago

Simplify: 5^2(3d - 2)

stiks02 [169]

Answer: 25d

Step-by-step explanation:

3d - 2 = 1d

5(5) = 25

25(1d) = 25d

5 0

3 years ago

Read 2 more answers