3 years ago

What is 20% of $ a dollar and 50 Cent

Mathematics

1 answer:

raketka [301]3 years ago

8 0

1.50x.20=.30
It's 30 cents

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Here are two similar rectangles.

asambeis [7]

Answer:

$40.32cm^{2}$

Step-by-step explanation

4*1.2=4.8

7*1.2=8.4

8.4*4.8=40.32

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3 years ago

Let $f(x)$ be a function defined for all positive real numbers satisfying the conditions $f(x) > 0$ for all $x > 0$ and $f

algol [13]

Suppose we choose $x=1$ and $y=\dfrac12$ . Then

$f(x-y)=\sqrt{f(xy)+1}\implies f\left(\dfrac12\right)=\sqrt{f\left(\dfrac12\right)+1}\implies f\left(\dfrac12\right)=\dfrac{1+\sqrt5}2$

Now suppose we choose $x,y$ such that

$\begin{cases}x-y=\dfrac12\\\\xy=2009\end{cases}$

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$\dfrac{1+\sqrt5}2=\sqrt{f(2009)+1}\implies f(2009)=\dfrac{1+\sqrt5}2$

Note that you can always find a solution to the system above that satisfies $x>y>0$ as long as $x>\dfrac12$ . What this means is that you can always find the value of $f(x)$ as a (constant) function of $f\left(\dfrac12\right)$ .

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3 years ago

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1÷1+cosa+1÷1_cos a please solve question

zloy xaker [14]

ok so THIS IS UR ANSWER I THINK PLEASE MAKE ME BRAINLIEST