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3 years ago

5

A store is offering a 30% discount off the regular price of a jacket them amount off the discount was $21 what was the regular p

rice of the jacket

1 answer:

SSSSS [86.1K]3 years ago

4 0

Answer:

(21/30)*100 = $70

Step-by-step explanation:

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292 students each get 10 ounces. How many ounces are needed?

sasho [114]

Answer:

2,920 ounces

Step-by-step explanation:

To find this, just multiply:

292 × 10 = 2,920

So, 2,920 ounces are needed

Hope this helps :)

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3 years ago

Aaron bought a new TV for $1,224. He is paying it off over a period of 12 months. How much will Aaron pay per month for his new

boyakko [2]

1224 / 12 = 102

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3 years ago

Read 2 more answers

erik [133]

$2.=c.\\\\2\sin4x\cos4x=2\sin(2\cdot4x)=2\sin8x\\\\Used:\\\sin2\alpha=2\sin\alpha\cos\alpha$

$1.=b.\\\\\csc x-\sin x=\dfrac{1}{\sin x}-\dfrac{\sin^2x}{\sin x}=\dfrac{1-\sin^2x}{\sin x}=\dfrac{\cos^2x}{\sin x}\\\\=\dfrac{\cos x\cos x}{\sin x}=\cos x\cdot\dfrac{\cos x}{\sin x}=\cos x\cot x\\\\Used:\\\csc x=\dfrac{1}{\sin x}\\\\\sin^2x+\cos^2x=1\to\cos^2x=1-\sin^2x\\\\\cot x=\dfrac{\cos x}{\sin x}$

$3.=a.\\\\\dfrac{\sin x-1}{\sin x+1}=\dfrac{\sin x-1}{\sin x+1}\cdot\dfrac{\sin x+1}{\sin x+1}=\dfrac{\sin^2x-1^2}{(\sin x+1)^2}=\dfrac{\sin^2x-1}{(\sin x+1)^2}\\\\=\dfrac{-(1-\sin^2x)}{(\sin x+1)^2}=\dfrac{-\cos^2x}{(\sin x+1)^2}\\\\Used:\\(a-b)(a+b)=a^2-b^2\\\\\sin^2x+\cos^2x=1\to \cos^2x=1-\sin^2x$

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3 years ago

Help please I need an answer for this fast

castortr0y [4]

Answer:

B 9, -9

Step-by-step explanation:

x^2 - 81 = 0

Add 81 to each side

x^2 = 81

Take the square root of each side

sqrt(x^2) = sqrt(81)

x = ±9

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2 years ago

Find the recipricol of -b/3

Licemer1 [7]

Answer:

-0.333333333

Step-by-step explanation:

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3 years ago