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shutvik [7]
3 years ago
7

Help me also with #8 !!!

Mathematics
1 answer:
iVinArrow [24]3 years ago
4 0

Answer:216 is your answer

Step-by-step explanation:

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Pls I neeed help very hard
Fynjy0 [20]

Answer:

96 ft

Step-by-step explanation:

Well add the given numbers up and calculate unkown sides using given measurments

6 0
3 years ago
What is the cubic root of 343
MatroZZZ [7]

The answer of Cubic root of 343 is 7

8 0
3 years ago
If a,b,c are all non-zero numbers and a+b+c=0, prove that
Butoxors [25]

<em>Given - a+b+c = 0</em>

<em>To prove that- </em>

<em>a²/bc + b²/ac + c²/ab = 3</em>

<em>Now we know that</em>

<em>when x+y+z = 0,</em>

<em>then x³+y³+z³ = 3xyz</em>

<em>that means</em>

<em> (x³+y³+z³)/xyz = 3 ---- eq 1)</em>

<em>Lets solve for LHS</em>

<em>LHS = a²/bc + b²/ac + c²/ab</em>

<em>we can write it as LHS = a³/abc + b³/abc + c</em><em>³</em><em>/abc</em>

<em>by multiplying missing denominators,</em>

<em>now take common abc from denominator and you'll get,</em>

<em>LHS = (a³+b³+c³)/abc --- eq (2)</em>

<em>Comparing one and two we can say that</em>

<em>(a³+b³+c³)/abc = 3</em>

<em>Hence proved,</em>

<em>a²/bc + b²/ac + c²/ab = 3</em>

6 0
3 years ago
A line passes through the point (2,8) and has a slope of 7
grandymaker [24]

Answer:

y=7x-6

Step-by-step explanation:

Use point-slope equation.

y-y1=m(x-x1)

y-8=7(x-2)

y-8=7x-14

y=7x-6

6 0
3 years ago
In a survey 27% of people chose salads over meat. In all 81 people chose salads. how many people are in the survey?
Lynna [10]
.27(x) = 81

x = 81/.27

x=300 people
7 0
3 years ago
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