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4 years ago

Answer this math question pls I'm in a rush

Mathematics

1 answer:

777dan777 [17]4 years ago

6 0

Answer:

61/18

Step-by-step explanation:

Make the mixed fraction an improper fraction first. So instead of 1 1/3, it'll be 4/3.

Now in a rectangular prism, there's two of each congruent sides (three pairs in total).

You'll need to multiply (4/3)(3/4) by 2 because there's two of them.

This gives you (1)(2) which equals 2.

Next, take another set --> (4/3)(1/3)(2) again because there's two of them.

This gives you (4/9)(2) which equals 8/9.

Last, take the last set --> (3/4)(1/3)(2)

This gives you (1/4)(2) which equals 1/2.

Now that you have all the areas of the rectangles, add them all together.

2+8/9+1/2 which equals 61/18 inches squared.

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3 years ago

A 40-foot ladder is leaning against a wall. To use the ladder safely, the angle between the wall and the ladder must be no more

svetoff [14.1K]

Answer:

No,because the angle between the wall and the ladder is 17.45°

Step-by-step explanation:

Let's first outline the parameters in this particular question

--- the angle between the wall and ladder is 15°

--- the ladder is 40 foot tall

---the bottom of the ladder is placed 12 feet from the wall.

With the above,we can conclude that the ladder placed against the wall formed a shape that has the look of a right angle triangle, where the length if the ladder is the hypotenuse, the distance between the foot of the ladder and the wal is the adjacent, and the height of ladder against the wall is unknown.

Let's now try to find the value of the unknown (in this case,the opposite of that triangle shape formed)

Using Pythagorean theorem, where c = √(a² + b²)

(C is the hypotenuse, a and b are the adjacent and opposite respectively)

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X² = 40² - 12²

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X = √1456

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Now to find the angle made by the wall and the ladder

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4 years ago