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Genrish500 [490]
3 years ago
7

A fence post is 12 feet tall. A chain is attached to the top of the fence post and fastened to the ground 9 feet from the base o

f the fence post. What is the length of the chain?
Mathematics
2 answers:
nirvana33 [79]3 years ago
8 0

Answer:

15 feet

Step-by-step explanation:

Use the Pythagorean theorem which is a^2 + b^2 = c^2

a and b represents the legs of the triangle

c represents the hypotenuse (which is the chain)

Natasha2012 [34]3 years ago
7 0

Answer: 15ft chain length

Step-by-step explanation: A right triangle is formed from the picture. Using pythagorean theoreom

12^2+9^2=c^2

225=c^2

15=c

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frutty [35]
<span>Its given that the sum of the values of total angles of a triangle is 180. It is also given that angles a and b are equal and that value of c is 72. Thus we get the following equation:
   
a + b + c = 180
   
a + a + 72 = 180 since a = b

2a = 108
   
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7 0
3 years ago
F(x) = x + 6 , find the ordered pair when x = -2.
ss7ja [257]

-------------------------------------------------------------------------------------------------------------

Answer:  \textsf{Option A, (-2, 4)}

-------------------------------------------------------------------------------------------------------------

Given:  \textsf{f(x) = x + 6}

Find:  \textsf{f(-2)}

Solution:  We need to plug in the value -2 into every variable x that we have in the expression and simplify to get the solution.

<u>Plug in the values</u>

  • \textsf{f(x) = x + 6}
  • \textsf{f(-2) = -2 + 6}

<u>Simplify</u>

  • <u />\textsf{f(-2) = -2 + 6}
  • \textsf{f(-2) = 4}

Therefore, the ordered pair that would match would have a x-coordinate of -2 and a y-coordinate of 4 producing (-2, 4) which matches option A.

7 0
2 years ago
When Justin goes to work, he drives at an average speed of 60 miles per hour. It takes about 1 hour and 30
dexar [7]

Answer:

$13.14

Step-by-step explanation:

60 mi/1 hour = x mi/1.5 hours

x = 90 mi to drive to work

25 mi/1 gallon = 90 mi/y gallons

y = 3.6 gallons to get to work

$3.65/1 gallon = $z/3.6 gallons

z = $13.14

6 0
4 years ago
Solve the inequality n - 10 &gt; 6.
givi [52]

Answer:

\large\boxed{n>16\to n\in(16,\ \infty)}

Step-by-step explanation:

n - 10 > 6                  <em>add 10 to both sides</em>

n - 10 + 10 > 6 + 10

n > 16

4 0
3 years ago
Cut a 60 cm ribbon into such that one part is one third of the other half
oee [108]

Answer:

15cm and 45cm

Step-by-step explanation:

If one part is one third of the other, then the long one is three times as long as the short one.

If the short one has length x

x + 3x = 60cm

4x = 60cm

x = 15cm

So short one is 15cm and the long one is 3*15cm = 45cm

6 0
3 years ago
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