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vlada-n [284]
3 years ago
10

X to the 2 power = -169 solve for X

Mathematics
1 answer:
Snezhnost [94]3 years ago
7 0
x^2=-169\\\\in\ the\ real\ numbers\ set\ (\mathbb{R})\ no\ solution\to x\in\O\\\\in\ the\ complex\ _numbers\ set\ (\mathbb{C}):\\\\i=\sqrt{-1}\\\\therefore:\\\\x^2=-169\\\\x=\pm\sqrt{-169}

x=\pm\sqrt{-1\cdot169}\\\\x=\pm(\sqrt{-1}\cdot\sqrt{169})\\\\x=\pm(i\cdot\sqrt{13^2})\\\\\boxed{x=\pm13i}
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The price of a video game increases by 20%, then decreases by 10%. If the final price is $46.98,
Elena-2011 [213]

Answer:

The original price was $43.50

Step-by-step explanation:

Let

x ----> the original price of a video game

we know that

1) The price of a video game increases by 20%

so

100\%+20\%=120\%=120/100=1.20

The final price is equal to the original price multiplied by 1.20

so

1.20x

2) The price of a video game decreases by 10%

so

100\%-10\%=90\%=90/100=0.90

The final price is equal to the price at this moment multiplied by 0.90

so

0.90(1.20x)=1.08x

we have that

1.08x=46.98

solve for x

x=46.98/1.08\\x=\$43.50

4 0
3 years ago
The graph below compares plant height to the age of the plant, in weeks.
NemiM [27]

Answer:

if you look at the graph and follow up from 5 weeks it almost hits the point 6 inches so you would say six inches the answer is 6 inches

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Complete the following conversions. i) 1 mm = m ii) mm = 1 m iii) 1 cm = m iv) cm = 1 m v) 1 km = m vi) km = 1 m vii) 1 cm = mm
Gelneren [198K]

The unit conversion for the given values are explained below.

<h3>What is unit conversion?</h3>

Unit conversion is the process of changing a quantity's measurement between different units, frequently using multiplicative conversion factors.

The following measurements: length, weight, capacity, temperature, and speed are all measured in units.

Some basic unit conversions are-

  • 1 Km = 1000 m
  • 1 m = 100 cm
  • 1 m = 1000 mm
  • 1 cm = 10 mm

There are two methods to convert the units

  1. To convert smaller unit into larger divide the number by conversion factor.
  2. To convert larger value into smaller value multiply by the conversion factor.

The unit conversion for the following factors are-

i) 1 mm = _ m

Here, conversion is from smaller to larger. So, divide by conversion factor.

  1 mm = (1/100)m

ii) _ mm = 1 m

Here, conversion is from larger to smaller. So, multiply with conversion factor.

  1000 mm = 1 m

iii) 1 cm = _ m

Here, conversion is from smaller to larger. So, divide by conversion factor.

   1 cm = (1/100)m

iv) _ cm = 1 m

Here, conversion is from larger to smaller. So, multiply with conversion factor.

  100 cm = 1 m

v) 1 km = _m

Here, conversion is from larger to smaller. So, multiply with conversion factor.

  1 km = 1000 m.

vi) _ km = 1 m

Here, conversion is from smaller to larger. So, divide by conversion factor.

(1/1000) km = 1 m.

vii) 1 cm = _mm

Here, conversion is from larger to smaller. So, multiply with conversion factor.

   1 cm = 10 mm

viii) _cm = 1 mm

Here, conversion is from smaller to larger. So, divide by conversion factor.

   (1/10) cm = 1 mm.

To know more about the easy way to convert units, here

brainly.com/question/141163

#SPJ4

 

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2 years ago
Geometry help please. Thank you!
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Don’t click it just don’t
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3 years ago
Lexi bulletin board is 40 centimeters wide,and her photos are 12 centimeters wide. What combinations of ribbons and photos will
Mrac [35]

Three would fit cause 3 times 12 is 36 and 4 times 12 is 48 which would be too big

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3 years ago
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