2 years ago

Quiz 5:1 midsegments

Mathematics

1 answer:

Oksana_A [137]2 years ago

7 0

Answer:

Step-by-step explanation:

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A safety regulation states that the maximum angle of elevation for a rescue ladder is 72°. A fire department's longest ladder is

Julli [10]

Answer:

The maximum safe rescue height is 104.6 feet above the height of the ground.

Step-by-step explanation:

Consider a triangle ABC where C is the point where the rescue ladder is standing and AB be the building and Ladder making an angle of 72° as shown.

We have to find the height of the building.

Let x be the height of building

Using Trigonometric ratio,

$\sin C=\frac{\text{Perpendicular}}{\text{Hypotenuse}}$

$\sin 72^{\circ}=\frac{AB}{BC}$

$\sin 72^{\circ}=\frac{x}{110}$

$x=110 \times \sin 72^{\circ}$

$x=104.6$

So, the maximum safe rescue height is 104.6 feet above the height of

the ground.

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3 years ago

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What is the value of the expression 2.6x10^9 over 1.3x10^2?

riadik2000 [5.3K]

the value would be 2x10^7

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When was the first world war

MAVERICK [17]

Answer:

July 28, 1914--World War 1

Step-by-step explanation:

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Translate the verbal expression "Five less than the product of X and three" into an algebraic expression

Illusion [34]

Answer:

x+3-5 i think

Step-by-step explanation:

"and" means add so x+3 and subtract 5

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Which of the following are measurements of supplementary angels 89 and 1 , 60 and 90 , 90 and 180 , 110 and 70

Maru [420]

Answer:

110 and 70

Step-by-step explanation:

The supplementary angels, sum = 180 degrees

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2 years ago