What is the discount on a stethoscope that is marked down from $300 to $250?

1 answer:

3 0

To find this answer you simply divide 250$ by 300$ you would then get 83% that is not the answer though you then subtract 83 from 100 and get 17 and that is the discount

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How to find the lowest common denominator of two fractions?

vesna_86 [32]

See what number both can go into: If you have 2/4 and 1/8 both have a multiple of 8. Since the multiples of 4 are : 4,8 and 8 can go into 8.

4 0

3 years ago

4. Find the derivative of sin x from first principle. <br><br>

olga_2 [115]

Step-by-step explanation:

$\text{By First Principle,}$

$\begin{align}\dfrac{d}{dx}\sin x&=\lim_{h\to0}\frac{\sin(x+h)-\sin x}{h}\\&=\lim_{h\to0}\frac{\sin x\cos h+\sin h\cos x-\sin x}{h}\\&=\lim_{h\to0}\left(\frac{\cos h-1}{h}\cdot\sin x\right)+\lim_{h\to0}\left(\frac{\sin h}{h}\cdot\cos x\right)\\&=\sin x\cdot\left(\lim_{h\to0}\frac{\cos h-1}{h}\right)+\cos x\cdot\lim_{h\to0}\left(\frac{\sin h}{h}\right)\\&=\sin x\cdot 0+\cos x\cdot1\\&=\cos x\end{align}$

$\color{blue}\text{Note: This proof is in fact circular without the geometric proof of the value of the two limits, but for the sake of this question it is done in this way.}$

7 0

3 years ago

*NOT 84* WILL GIVE BRAINLIEST

Marizza181 [45]

Answer:

I don't know I get 84 even the internet gets that

Step-by-step explanation:

8 0

3 years ago

ASAP ASAP ASAP HELP

Yakvenalex [24]

Answer:

You have the right answer selected (139°)

Step-by-step explanation:

Similar means that their angles are the same.

77 + 62 = 139

You have to add 180, but then you have to subtract it.

3 0

3 years ago

Its really bad how im not educated in math but atleast this is my final worksheet xd.

Alex73 [517]

Answer:

For the first question the answer is 7/8 and for the second 1 the answer is 10/10 or 1/10

Step-by-step explanation:

you subtract 1/2 from 1 3/4 and get 7/8 same for the bottom question subtracted 1/4 from 2 1/2 for you answer.

4 0

2 years ago