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Serhud [2]
3 years ago
9

Someone help me on this question.

Mathematics
1 answer:
AfilCa [17]3 years ago
4 0

Answer:

green box: 13

Step-by-step explanation:

The altitude from the right-angle vertex divides a right triangle into similar triangles. Corresponding sides of similar triangles are in proportion, so you have ...

... short side / long side = 4/y = y/9

Multiplying by 9y gives ...

... 36 = y²

... 6 = y . . . . taking the square root

___

z is the hypotenuse of the right triangle with sides 6 and 9. So the value of z will be ...

... z² = 6² +9² . . . . . . Pythagorean theorem

... z = √(36 +81) = √(9·(4 + 9)) = 3√13

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If a car is traveling at 64 mph how many miles will it travel in 6 hours
kozerog [31]

Answer:

384

Step-by-step explanation:

64*6=384

Hope it helped!

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3 years ago
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The perimeter of an isosceles triangle is 110 m two of the links are 40 and 30 m what is the area of the triangle
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3 years ago
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balandron [24]

Answer:

  • The sequence of transformations that maps triangle XYZ onto triangle X"Y"Z" is <u>translation 5 units to the left, followed by translation 1 unit down, and relfection accross the x-axis</u>.

Explanation:

By inspection (watching the figure), you can tell that to transform the triangle XY onto triangle X"Y"Z", you must slide the former 5 units to the left, 1 unit down, and, finally, reflect it across the x-axys.

You can check that analitically

Departing from the triangle: XYZ

  • <u>Translation 5 units to the left</u>: (x,y) → (x - 5, y)

  • Vertex X: (-6,2) → (-6 - 5, 2) = (-11,2)
  • Vertex Y: (-4, 7) → (-4 - 5, 7) = (-9,7)
  • Vertex Z: (-2, 2) → (-2 -5, 2) = (-7, 2)

  • <u>Translation 1 unit down</u>: (x,y) → (x, y-1)

  • (-11,2) → (-11, 2 - 1) = (-11, 1)
  • (-9,7) → (-9, 7 - 1) = (-9, 6)
  • (-7, 2) → (-7, 2 - 1) = (-7, 1)

  • <u>Reflextion accross the x-axis</u>: (x,y) → (x, -y)

  • (-11, 1) → (-11, -1), which are the coordinates of vertex X"
  • (-9, 6) → (-9, -6), which are the coordinates of vertex Y""
  • (-7, 1) → (-7, -1), which are the coordinates of vertex Z"

Thus, in conclusion, it is proved that the sequence of transformations that maps triangle XYZ onto triangle X"Y"Z" is translation 5 units to the left, followed by translation 1 unit down, and relfection accross the x-axis.

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Convert 12,000+7*10^(4) to scientific notation
Nostrana [21]

Answer:

Step-by-step explanation:

Enter numbers or scientific notation.

For scientific notation, use a carat ^ for the powers of 10 or use e notation.

Scientific Notation: 3.45 x 10^5

E Notation: 3.45e5

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Answer:

answer for question 7. 0.17×70 = $11.9

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