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irakobra [83]
3 years ago
12

Please someone help me

Mathematics
1 answer:
Bad White [126]3 years ago
3 0

Answer:

Step-by-step explanation:

x≥3

x<5

x≤ 11/4

x>7

x<2

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Is the square root of 19 rational
kicyunya [14]

Answer:

No

Step-by-step explanation:

The square root needs to be a perfect square root to be a rational number, for example: the square root of 25 which equals 5.

3 0
3 years ago
How do you express sin x + cos x in terms of sine only?
frez [133]

Answer:

\sin x + \sqrt{1-\sin^2x}

Step-by-step explanation:

Given: sin x + cos x

To change the given trigonometry expression in term of sine only.

Trigonometry identity:-

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  • \cos x=\sqrt{1-\sin^2x}

Expression: \sin x+\cos x

We get rid of cos x from expression and write as sine form.

Expression: \sin x + \sqrt{1-\sin^2x}        \because \cos x=\sqrt{1-\sin^2x}

Hence, The final expression is only sine function.

4 0
4 years ago
A markup of 33% based on cost is desired for a load of 800 bushels of peanuts. They were purchased at $5.85 per bushel. What sho
Alenkasestr [34]

Answer: Option 'c' is correct.

Step-by-step explanation:

Since we have given that

Number of bushels of peanuts = 800

Price of each bushels of peanuts = $5.85

And there is mark up rate = 33%

So, Total price would be

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If there is spoilage rate = 21%

So, the remaining rate would be 1-0.21=0.79

so, Number of remaining bushels of peanuts would be

0.79\times 800\\\\=632

So, Selling price per bushel would be

\dfrac{622.4}{632}\\\\=\$9.85

Hence, Option 'c' is correct.

4 0
3 years ago
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