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Vaselesa [24]
2 years ago
9

A. 1) Given

Mathematics
1 answer:
SCORPION-xisa [38]2 years ago
8 0

<u>Reasons</u>

  1. Given
  2. A midpoint splits a segment into two congruent parts
  3. A triangle with a right angle is a right triangle
  4. HL

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Help please ...........<br>number 13, 14, 15<br>​
AfilCa [17]

Answer:

13.  108 inches

14.  not similar (sides have different ratios)

15.  68

Step-by-step explanation:

13. You have two relationships between length and width:

  2L + 2W = 336 . . . . . the perimeter is 336 inches

  L/W = 9/5 . . . . . . . . . .the ratio of length to width is 9/5

Multiplying the second equation by 5/9W, we get

  5/9L = W

Now we can substitute that into the first equation to get ...

  2L +2(5/9L) = 336

Multiplying by 9 gives us ...

  18L +10L = 3024

And dividing by 28 gives ...

  3024/28 = L = 108 . . . . inches

___

14. Shortest to longest, the ratios of sides are 6 : 8 : 9 and 2 : 4 : 5. There is no value that will multiply the first ratio to give the second ratio. For example, multiplying by 1/3 gives ...

  2 : 2 2/3 : 3 . . . . <u>not</u> 2 : 4 : 5

Similar triangles have the same side ratios. These do not, so they are not similar triangles.

__

15. MP is a midsegment of triangle JKL and parallel to base JL. A midsegment is half the length of the parallel base. Then JL is twice as long as MP. JL is 68 units long.

3 0
3 years ago
What is the quotient of 11/12 divided by 5/7
shusha [124]
The answer is D 1 and 17/60

3 0
3 years ago
Read 2 more answers
Two identical square pyramids were joined at their bases to form the composite figure below. 2 square pyramids have a base of 24
Airida [17]

Answer:

8[\frac{1}{2}(24)(5)] cm²

Step-by-step explanation:

Surface area of the composite figure = Surface area of the lateral surfaces of the given pyramids

Lateral surface area of a square pyramid = 4

Therefore, lateral surface area of the pyramid

= 4[\frac{1}{2}(24)(5)]

Now lateral surface area of the composite figure = 2(lateral surface area of two pyramids)

= 8[\frac{1}{2}(24)(5)]

Therefore, Expression for the surface area of the given composite figure is,

8[\frac{1}{2}(24)(5)] cm²

6 0
3 years ago
Read 2 more answers
Identify the slope and y-intercept of the line y = ×/2 -7​
arlik [135]

Answer:

Slope: -\frac{1}{5}   Y-intercept: (0,0)

Step-by-step explanation:

By putting this into a graph you can see that the y-intercept is (0,0). Also, by looking at the chart and using the walk, rise rule you can see that the slope is -\frac{1}{5}.

7 0
1 year ago
Determine if this is a function.
Kruka [31]

Answer: This is <u>not</u> a function

Why not?

The input x = 2 leads to more than one output. In this case, it leads to y = 20 and y = 40 simultaneously. This is the reason why we don't have a function. A function is only possible if each input x leads to exactly one y output.

Put another way: we cannot have x repeating any values if we want a function.

Side note: We could have y repeat however. So it's possible to have a function with the two points (1,5) and (3,5).

6 0
3 years ago
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