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Simora [160]
3 years ago
8

Which of the triangles are right triangles? Please be 100% sure about your answers. I will mark Brainliest!

Mathematics
1 answer:
Kisachek [45]3 years ago
6 0
1 is wrong because the measurements do not work for the pythagorean theorem.
3 is wrong because using the pythagorean theorem with those measurements would not work.
4 is wrong because the only way that 4 would work is if the hypotenuse was 3√2 not 3√3

The correct answer is 2 because that is the only one that actually works with the pythagoran theorem. 

√41^2 = 41
5^2 + 4^2 = 25 + 16 = 41
41 = 41
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3 years ago
Pls help im like 5 hrs behind in math
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Answer:

The composite area is a total of 62 square inches.

Step-by-step explanation:

You're given three rectangles of different width and height.  To find the correct answer, you need to find the sum of each rectangles' area.

first though we need to find the height of the middle rectangle.  We are told the total height and the other two rectangles' heights, so we just need to subtract the others' heights from the total:

10 - (4 + 1.5)

10 - 5.5

= 4.5

So the middle rectangle is 4x4.5 inches, giving it an area of 18 square inches

The top one is 8x4 inches for a total of 32 square inches.

And the bottom one is 1.5x8 inches, for a total  12 square inches.

If we add them all up, that's 18 + 32 + 12 square inches, or 62 square inches.

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3 years ago
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Answer:

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4 0
2 years ago
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Natasha_Volkova [10]

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We can find the first equation simply. He gets 20 every hour up to 42 hours. Therefore, the function gives us our first equation of y = 20x when x < 42.

The second one, we must know what the base amount he would make before starting to make 28 an hour. The 28 an hour would be 28x, but he would have already made 840 before hand. Which we can determine by multiplying the base of 42 hrs by 20.

42 * 20 = 840.

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Can u include a picture?
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