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2 years ago

Help with this question please!

Mathematics

1 answer:

Anton [14]2 years ago

5 0

∠1 and ∠2 are alternate exterior angles where transversal BE crosses parallel lines AC and DF, therefore they are equal. ∠2 and ∠3 are opposite angles of a parallelogram, therefore they are equal.

... ∠1 = ∠2

... 3x -5 = 2x +15 . . . . substitute the given values

... x = 20 . . . . . . . . . . . add 5-2x

The measures of angles 1, 2, and 3 are 2·20+15 = 55 . . . degrees.

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2 years ago

A 20ft ladder is leaning against a house. The bottom of the ladder is 3 ft from the house. To the nearest tenth of a foot, abou

Tasya [4]

Answer: 19.8 ft

Step-by-step explanation:

Use the Pythagorean Theorem formula to solve for how high the top of the ladder reach.

The formula says a^2 + b^2 = c^2

Where a and b are the two legs and C is the hypotenuse.

In this situation, the hypotenuse will be length of the ladder , and either a or b will be the length of the ladder from the building or the length of how long the ladder.

a will be 3 , and c will be 20. Input in the values into the formula and solve for b.

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9 + b^2 = 400

-9 -9

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2 years ago

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arsen [322]

I think it is D. not sure tho

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The perimeter of a patio is 64 feet. The width of the patio is 12 feet and the length of the patio is (x+6) feet. What is the le

Ludmilka [50]

Here's how you do it!

12+12+x+6+x+6=64

36+2x=64

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2 years ago

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2 years ago