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2 years ago

A customer wants to book a room with a seaview.

Mathematics

1 answer:

Anika [276]2 years ago

7 0

3/4 is the fraction

lol

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What is 1.1 (.1 repeating) as a fraction?

melamori03 [73]

Answer:

$\frac{10}{9}$

Step-by-step explanation:

1 .1 ( .1 repeating) = $\frac{10}{9}$

Let x=0.1

Then 10x = 1.1111...

= 10 + 0.(1)

= 10+ x.

So, 9x=10 and lastly, x= $\frac{10}{9}$

6 0

2 years ago

I need help I’ll give brainliest

galben [10]

Answer:

what the problem?

Step-by-step explanation:

8 0

2 years ago

What’s 8 squared into a decimal

ycow [4]

Answer:

2.828 i think

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

Rewrite 9cos 4x in terms of cos x.

rosijanka [135]

$\bf \qquad \textit{Quad identities}\\\\
sin(4\theta )=
\begin{cases}
8sin(\theta )cos^3(\theta )-4sin(\theta )cos(\theta )\\
4sin(\theta )cos(\theta )-8sin^3(\theta )cos(\theta )
\end{cases}
\\\\\\
cos(4\theta)=8cos^4(\theta )-8cos^2(\theta )+1\\\\
-------------------------------\\\\
9cos(4x)\implies 9[8cos^4(x)-8cos^2(x)+1]
\\\\\\
72cos^4(x)-72cos^2(x)+9$

---------------------------------------------------------------------------

as far as the previous one on the 2tan(3x)

$\bf tan(2\theta)=\cfrac{2tan(\theta)}{1-tan^2(\theta)}\qquad tan({{ \alpha}} + {{ \beta}}) = \cfrac{tan({{ \alpha}})+ tan({{ \beta}})}{1- tan({{ \alpha}})tan({{ \beta}})}\\\\
-------------------------------\\\\$

$\bf 2tan(3x)\implies 2tan(2x+x)\implies 2\left[ \cfrac{tan(2x)+tan(x)}{1-tan(2x)tan(x)}\right]
\\\\\\
2\left[ \cfrac{\frac{2tan(x)}{1-tan^2(x)}+tan(x)}{1-\frac{2tan(x)}{1-tan^2(x)}tan(x)}\right]\implies 2\left[ \cfrac{\frac{2tan(x)+tan(x)-tan^3(x)}{1-tan^2(x)}}{\frac{1-tan(x)-2tan^3(x)}{1-tan^2(x)}} \right]
\\\\\\$

$\bf 2\left[ \cfrac{2tan(x)+tan(x)-tan^3(x)}{1-tan^2(x)}\cdot \cfrac{1-tan^2(x)}{1-tan(x)-2tan^3(x)} \right]
\\\\\\
2\left[ \cfrac{3tan(x)-tan^3(x)}{1-tan^2(x)-2tan^3(x)} \right]\implies \cfrac{6tan(x)-2tan^3(x)}{1-tan^2(x)-2tan^3(x)}$

4 0

2 years ago

The height of a triangle is 5 inches less than twice the base of the triangle. Which equation ents this relationship if x repres

Vika [28.1K]

Let height = h
Let base = x

h = 2x - 5

4 0

2 years ago