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3 years ago

10

A ladder is leaning against the side of a building. The bottom of the ladder makes an angle of 73 degrees with the ground and is

0.9 m from the bottom of the building. Determine the length of the ladder.

1 answer:

Darina [25.2K]3 years ago

5 0

Answer:

3.08

Step-by-step explanation:

you are looking for the hypotenuse, and have adjacent. So, use COS.

cos(73)=0.9/x

simplified 0.9/cos(73)

calculate.

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Alexxandr [17]

Answer:

$m \leqslant 10 \: or \: m > 4$

Step-by-step explanation:

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OR

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The measure of one side of a square is (s+3) inches long. which pair of expressions both represent the perimeter of this square?

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Answer:

D. 4(s + 3) & (s + 3) + (s + 3) + (s + 3) + (s + 3)

Step-by-step explanation:

We know this is a square (which is a polygon, which requires at least 3 sides), so A & B are out. C is also out because of the first expression. All 4 sides are s + 3; what the first expression on C is saying is we're adding a 5th side of 3 to 4 sides with length s. That leaves D as our answer. Bonus: Another expression that could work for this is 4s + 12 (which is both of D's expressions simplified.).

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yanalaym [24]

Answer

The cheaper dog sitter is Derrick's.

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3 years ago

The altitude of a triangle is a perpendicular segment from the vertex to a line containing the

azamat

Answer:

$H=\sqrt{91}$

Step-by-step explanation:

The altitude falls in the middle of the line.

So, the point at which it falls in the bottom line is the midpoint, so the length of the blue triangle would be 6/2 = 3

So, the blue triangle has length of 3 and height of H and hypotenuse of 10.

Now, we will use Pythagorean Theorem to solve for H. The theorem is:

Leg^2 + Another Leg^2 = Hypotenuse^2

We know one leg of the triangle is 3 and another leg is H and hypotenuse is 10, so we substitute and solve:

$3^2 + H^2 = 10^2\\9+H^2=100\\H^2=100-9\\H^2=91\\H=\sqrt{91}$

This is the exact answer for H

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