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My name is Ann [436]
3 years ago
5

Triangle J K L is shown. Angle J K L is a right angle. An altitude is drawn from point K to point M on side J L, forming a right

angle.
Which similarity statements are true? Check all that apply.


△JKL ~ △KML

△JKM ~ △JKL

△JKM ~ △KML

△JMK ~ △JKL

△JMK ~ △KML

Mathematics
2 answers:
Murljashka [212]3 years ago
5 0

Answer:

yah its 1, 4, and 5. Best of luck on the assignment.

Step-by-step explanation:

<h3 />
vredina [299]3 years ago
4 0

Answer:

1, 4, 5

Step-by-step explanation:

Consider right triangle JKL with right angle JKL and height KM. This height divides triangle into two right triangles KML and KMJ.

Note that

m\angle MKL=90^{\circ}-m\angle MLK=m\angle KJM\\ \\m\angle JKM=90^{\circ}-m\angle KJM=m\angle MLK

So, by AA theorem, we have three similar triangles

\triangle JKL\sim \triangle JMK\sim \triangle KML

So, options 1, 4 and 5 are true

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A The length of a rectangle is 4 m more
Lady bird [3.3K]

Given :

  • The length of a rectangle is 4m more than the width.
  • The area of the rectangle is 45m²

⠀

To Find :

  • The length and width of the rectangle.

⠀

Solution :

We know that,

\qquad { \pmb{ \bf{Length \times Width = Area_{(rectangle)}}}}\:

So,

Let's assume the length of the rectangle as x and the width will be (x – 4).

⠀

Now, Substituting the given values in the formula :

\qquad \sf \: { \dashrightarrow x  \times  (x - 4) = 45 }

\qquad \sf \: { \dashrightarrow {x}^{2}  - 4x = 45 }

\qquad \sf \: { \dashrightarrow {x}^{2}  - 4x - 45 = 0 }

\qquad \sf \: { \dashrightarrow {x}^{2}    - 9x+ 5 x - 45 = 0 }

\qquad \sf \: { \dashrightarrow x(x - 9) + 5(x - 9) = 0 }

\qquad \sf \: { \dashrightarrow (x  - 9) (x  + 5) = 0 }

\qquad \sf \: { \dashrightarrow x = 9, \: \: x =  - 5}

⠀

Since, The length can't be negative, so the length will be 9 which is positive.

⠀

\qquad { \pmb{ \bf{ Length _{(rectangle)} = 9\:m}}}\:

\qquad { \pmb{ \bf{ Width _{(rectangle)} = 9 - 4=5\: m}}}\:

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

8 0
2 years ago
What is the square root of 81 and multiplied that by 2?
vovikov84 [41]

Answer: 18


Step-by-step explanation:

Square root of 81 is 9 because 9*9=81 then 9*2=18

4 0
3 years ago
Ty’s experimental probability of winning a certain game is 1/3. Jana’s expiremental probability of winning the same game is 3/4.
Dafna1 [17]

Answer:

Jana is expected to win 40 more games over Ty.

Step-by-step explanation:

If Ty plays the game 120 times, he is expected to win in 1/3 part of 120 games, which is ( 1/3 * 120 =) 40 games.

If Jana plays the game 120 times, she is expected to win in 2/3 part of 120 games, which is ( 2/3 * 120 =) 80 games.

If Jana is expected to win 80 times an Ty is expected to 40 times, then Jana is expected to win ( 80 - 40 =) 40 more games over Ty.

4 0
3 years ago
Which graph below is a tree graph?
Vitek1552 [10]

Answer:

D)

Step-by-step explanation:

I think that the response is d), because there is only a single path between any 2 nodes. Like in a tree, a leaf cannot belong to 2 branches.

5 0
3 years ago
A building 64 ft high casts a 288-ft shadow. Sarah casts a 18-ft shadow. The triangle formed by the building and its shadow is s
Anastaziya [24]

Answer:

The answer to your question is 4 ft

Step-by-step explanation:

Data

Building's shadow = 288 ft

Building's high = 64 ft

Sarah's shadow = 18 ft

Sarah's height = ?

Process

1.- Use proportions to solve this problem

                               \frac{Sarah's height}{Sarah's shadow} = \frac{building's height's}{building's shadow}

2.- Solve for Sarah's height

  Sarah's height = \frac{Sarah's shadow x building's height}{building shadow}

3.- Substitution

  Sarah's height = \frac{18 x 64}{288}

4.- Simplification

  Sarah's height = \frac{1152}{288}

5.- Result

  Sarah's height = 4 ft

5 0
3 years ago
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