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Alina [70]
3 years ago
7

(7x-49x^2)/(7x) can smeone solve this? Thank you! I hope you have a great day!

Mathematics
1 answer:
svp [43]3 years ago
3 0

Answer:

x = 1/7

Step-by-step explanation:

\frac{(7x-49x^2)}{7x}\\\\\frac{7x(1-7x)}{7x} \\\\1-7x=0\\\\1=7x\\\\

x = 1/7

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Find the cosine of each acute angle
Lemur [1.5K]

Answer:

cos P = 53 degrees

cos Q = 37 degrees

Step-by-step explanation:

cos P = \frac{adjacent}{hypothenuse}

cos P = \frac{24}{40}

cos P = 0.60

Cos-1 of 0.60 is 53.13 (round to the nearest whole number)

cos P = 53 degrees

cos Q = \frac{adjacent}{hypothenuse}

cos Q = \frac{32}{40}

cos Q = 0.80

Cos of 0.80 is 36.86 (round to the nearest whole number)

cos Q = 37 degrees

To check anser:

90 + 53 + 37 = 180

180 = 180

4 0
3 years ago
Why is the derivative equals to 0?
Lisa [10]

Answer:

see explanation

Step-by-step explanation:

Using the trigonometric identity

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7 0
3 years ago
The density of a block of wood with a volume of 50 cubic centimeters and mass off 100 grams is...................
Natalija [7]
Mass  = 100  g

Volume = 50 cm³

Density :

D = m / V

D = 100 / 50

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answer A

hope this helps!.
4 0
3 years ago
What is the answer of <br> reciprocal of 1/7
serg [7]
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3 0
3 years ago
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harkovskaia [24]

Answer:

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Step-by-step explanation:

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Shows that when 2 powers with the same base are being multiplied then the exponents are added.

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3 years ago
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