Help help help please

Mathematics

1 answer:

Olin [163]3 years ago

4 0

Answer:

Step-by-step explanation:

a² + b² = c²

a² + 9² = 12²

a² + 81 = 144

a² = 63

a = √63

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A sweater is marked 30% off during an end or season sale. If the sweater was originally $56.00, what is the sale price of the sw

Ludmilka [50]

Answer:

Sweater costs 56.00

To calculate the discounted price of the sweater

56 * (30/100) = 16.8

We used (30/100) to find out the 30 percent of the sweater which will be on discount/reduced.

56-16.8=39.2 is the discounted price

Then we subtract the amount of discount from the original price of sweater to find out the discounted price.

Step-by-step explanation:

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2 years ago

True or False ? The distance formula is equivalent to the Pythagorean theorem if you are

ElenaW [278]

I believe that it is true due to it, the distance formula uses x and y coordinates. So, they're the same thing in two different types, or so..

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I hope this helps, as always. I wish you the best of luck and have a nice day, friend..

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3 years ago

URGENT!!

ss7ja [257]

Answer:

A. 14.7cm

Step-by-step explanation:

In Triangle ABC

$\angle A=60^\circ\\\angle B=45^\circ\\b=12cm$

We are to determine the measure of side a.

Using Law of Sines

$\dfrac{a}{\sin A}= \dfrac{b}{\sin B}\\\dfrac{a}{\sin 60^\circ}= \dfrac{12}{\sin 45^\circ}\\\\$Cross multiply\\a*sin 45^\circ=12*\sin 60^\circ\\$Divide both sides by sin 45^\circ\\\dfrac{a*sin 45^\circ}{sin 45^\circ}= \dfrac{12*\sin 60^\circ}{\sin 45^\circ}\\\\a=14.7$ cm (to the nearest tenth of a cm)$