Find the following product. (4a +6) (3a? - 3a+6) (4a + 6) (3a2- 3a +6) =

Mathematics

1 answer:

katen-ka-za [31]2 years ago

3 0

Answer:

12a^3+6a^2+6a+36

Step-by-step explanation:

Sana makatulong!

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Sonja [21]

The solution point where the two lines intersect is (-2,0).

For online graphing, I like to use Desmos Online Graphing Calculator. It is a very useful tool. Hope my answer helps!

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Y_Kistochka [10]

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18,18,15,18,18,24,21,21,24,14 which one is mean

julsineya [31]

Answer:19.1

Step-by-step explanation: Put the numbers in order and then add the numbers and then divide it by how many number there is

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191/10=19.1

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2 years ago

Find The art length of a sector with an area of 8 square units.

frez [133]

$\bf \textit{area of a sector of a circle}\\\\
A=\cfrac{\theta \pi r^2}{360}\quad 
\begin{cases}
r=radius\\
\theta =angle~in\\
\qquad degrees\\
------\\
A=8\\
r=4
\end{cases}\implies 8=\cfrac{\theta \pi 4^2}{360}\implies \cfrac{8\cdot 360}{4^2\pi }=\theta 
\\\\\\
\cfrac{2880}{16\pi }=\theta \implies \boxed{\cfrac{180}{\pi }=\theta }\\\\
-------------------------------\\\\$

$\bf \textit{arc's length}\\\\
s=\cfrac{\theta \pi r}{180}\quad 
\begin{cases}
r=radius\\
\theta =angle~in\\
\qquad degrees\\
------\\
\theta =\frac{180}{\pi }\\
r=4
\end{cases}\implies s=\cfrac{\frac{180}{\underline{\pi} }\underline{\pi} \cdot 4}{180}\implies s=\cfrac{\underline{180}\cdot 4}{\underline{180}}
\\\\\\
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if you do a quick calculation on what that angle is, you'll notice that it is exactly 1 radian, and an angle of 1 radian, has an arc that is the same length as its radius.

that's pretty much what one-radian stands for, an angle, whose arc is the same length as its radius.

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3 years ago

A building 190 feet tall casts a 90 foot long shadow. if a person stands at the end of the shadow and looks up to the top of the

Ivahew [28]

Answer:

About 64.65 degrees

Step-by-step explanation:

$\tan(x) = \frac{190}{90}$

$x = { \tan}^{ - 1} \frac{190}{90} = 64.65$

Make sure your calculator is in degree mode.

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1 year ago