3 years ago

Please help me on this !!

Mathematics

1 answer:

Vilka [71]3 years ago

8 0

Answer:

perpendicular

Step-by-step explanation:

the photo shows a diagram. it does not intersect. the line was extrapolated to show it was perpendicular.

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The total length of wires a b and c is 445 cm wire a is 45 cm longer then wire b and wire b is half as long as wire c how long i

Oksana_A [137]

Answer:

$a = 145\ cm$

Step-by-step explanation:

Given

$a + b + c = 445$

$a = 45 + b$

$b = \frac{1}{2}c$

Required

Determine the length of a

Solve for c in $b = \frac{1}{2}c$

$2 * b = \frac{1}{2}c * 2$

$2b = c$

$c = 2b$

Substitute $c = 2b$ and $a = 45 + b$ in $a + b + c = 445$

$a + b + c = 445$

$45 + b + b + 2b = 445$

$45 + 4b = 445$

Solve for 4b

$4b = 445 - 45$

$4b = 400$

Solve for b

$b = 400/4$

$b = 100$

Recall that: $a = 45 + b$

$a=45+100$

$a = 145\ cm$

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anyanavicka [17]

Answer:

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Step-by-step explanation:

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2 years ago

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kirill115 [55]

Answer:

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Step-by-step explanation:

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Salsk061 [2.6K]

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Step-by-step explanation:

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