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lara31 [8.8K]
3 years ago
11

Hurry hurry

Mathematics
1 answer:
Anna [14]3 years ago
5 0

Answer:

<h3>THE SCIENCE OF COLLECTING, REVIEWING AND ANALYSING DATA.</h3>
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Two vertical poles of lengths 11 ft and 14 ft stand 16 ft apart. A cable reaches from the top of one pole to some point on the g
Alex17521 [72]

We are given

total length of cable is 30 feet

and this cable is on hypotenuse sides of the triangles

so, we can draw triangle as

Let's assume those hypotenuse as 'a' and 'b'

so, we will have

a+b=30

now, we can find 'a' and 'b' from triangle

Smaller triangle:

a=\sqrt{x^2+11^2}

Larger triangle:

b=\sqrt{(16-x)^2+14^2}

we know that

a+b=30

so, we can plug this value

and we get

\sqrt{x^2+11^2}+\sqrt{(16-x)^2+14^2} =30

now, we can solve for x

\left(\sqrt{x^2+11^2}\right)^2=\left(30-\sqrt{\left(16-x\right)^2+14^2}\right)^2

32x-1231=-60\sqrt{x^2-32x+452}

1024x^2-78784x+1515361=3600x^2-115200x+1627200

now, we can use quadratic formula

we get

x=\frac{-\sqrt{36416^2-1152389056}+36416}{5152},\:x=\frac{\sqrt{36416^2-1152389056}+36416}{5152}

x=4.510,x=9.627

so,

The point should be located 4.510 feet , 9.627 feet from the smaller pole to use 30 feet cable............Answer

6 0
3 years ago
One label on a package of bolts says that each bolt has a diameter of 0.45 inch. To be in the package, the percent error of the
Lemur [1.5K]

Answer:

  • No, should not

Step-by-step explanation:

The diameter is 0.45 in

The percent error is < 4%

<u>The lower limit of allowance is:</u>

  • 0.45 - 4% =
  • 0.45*(1 - 0.04) =
  • 0.45*0.96 =
  • 0.432

Less than 4% error means the diameter should be greater than 0.432 in.

The bolt with the diameter 0.43 in is outside of the allowance and should <u>not</u> go into the package

7 0
3 years ago
What is the solution to this system of equations?
faltersainse [42]
(0,8) infinitely many solutions
5 0
3 years ago
Solve equation for x. X+16+3x=18+2x
mr_godi [17]
Let me know if u can see this picture

6 0
4 years ago
a square with side lengths of 6 cm is enlarged using a factor of 2.5. What will the perimeter and area of the enlarged square?
enot [183]

Answer:

15

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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