3 years ago

Help? please and thanks

Mathematics

1 answer:

GuDViN [60]3 years ago

5 0

For the following it would be 33

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Please help! Due very soon!

Arada [10]

Answer:

multiply

row

Step-by-step explanation:

The answer to each blank, in order from top to bottom

8 0

4 years ago

How to you get 104 using the numbers 2 3 5 8

jasenka [17]

You can multiply something by the 2,3,5,or 8 so you get to 104.

3 0

3 years ago

How do I simplify this?

storchak [24]

Rise over run or the change in Y over the change in X

3 0

3 years ago

There is a cafe at the carpark it is 13 metres long and 8 metres wide what is the area of the cafe

ozzi

13*8= 104
I hope this helps

4 0

3 years ago

Read 2 more answers

If sinx+sin^2x=1 then what is the value of cos^12x+3cos^10x+3cos^8x+cos^6x

mr_godi [17]

$\sin x+\sin^2x=1\implies\sin x=1-\sin^2x=\cos^2x$

$\cos^{12}x+3\cos^{10}x+3\cos^8x+\cos^6x=\sin^6x+3\sin^5x+3\sin^4x+\sin^3x$
$=\sin^3x(\sin^3x+3\sin^2x+3\sin x+1)$
$=\sin^3x(\sin x+1)^3$

Let $y=\sin x$ . Then

$\sin^2x+\sin x-1=0\iff y^2+y-1=0\implies y=-\varphi,y=\varphi-1$

where $\varphi=\dfrac{1+\sqrt5}2\approx1.61803$ is the golden ratio.

$\begin{cases}y=-\varphi\\y=\varphi-1\end{cases}\implies\begin{cases}\sin x=-\varphi\\\sin x=\varphi-1\end{cases}$

Since $|\sin x|\le1$ for all real $x$ , we can omit the first equation, leaving us with

$\sin x=\varphi-1\approx0.61803$

$\cos^{12}x+3\cos^{10}x+3\cos^8x+\cos^6x=\sin^3x(\sin x+1)^3$
$=(\varphi-1)^3\varphi^3$
$=1$

where the last equality follows from the fact that $\varphi=1+\dfrac1\varphi$ .

7 0

3 years ago

Help? please and thanks​

Help? please and thanks