Prove that the measure of angle JKL is 90 degrees.

Prove That The Measure Of Angle JKL Is 90 Degrees.

Answers

Answer 1

∡ NKM + ∡KNM + ∡ NMK = 180° Because Angles in a triangle ΔNKM sum to 180°

∡ NKM + 90° + 60° = 180°

∡ NKM = 30°

∡ NKM = ∡JKN = ∡ MKL = 30° because ΔJKM∼ΔNKM∼ΔMKL

Finally:

∡ JKL = ∡ NKM + ∡JKN + ∡ MKL

∡ JKL =  30° +  30° +  30°

∡ JKL = 90°

Answer 2

With the help of properties of triangle ∠JKL = 90 degrees.

To prove:

∠JKL = 90 degrees.

Here,

Angle sum property of triangle:

In any triangle sum of angles is 180 degrees.

So,

In ΔNKM

∡ NKM + ∡KNM + ∡ NMK = 180°

∡ NKM + 90° + 60° = 180°

∡ NKM = 30°

Now,

ΔJKM∼ΔNKM∼ΔMKL (By AAA)

Thus,

∡ NKM = ∡JKN = ∡ MKL = 30°

Next,

∡ JKL = ∡ NKM + ∡JKN + ∡ MKL

∡ JKL =  30° +  30° +  30°

∡ JKL = 90°

Hence proved.

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Related Questions

Let f (x) = -5x + 4. Write a function g whose graph is a reflection in the y-axis of the graph of f.

Answers

If the function is reflected across the yaxis of the graph of f, the resulting function will be g(x) = 5x + 4

Translation of functions

Translation is the technique that is used to change the position of a figure on an xy-plane.

For instance, if the function f(x) is reflected in the y-axis, the resulting function will be g(x) = -f(x)

Given the function f(x)=|x|-3, if the function is reflected in the y-axis of the graph of f.f, the resulting function will be;

g(x) = f(-x)

g(x) = (-5x) + 4)

g(x) = 5x + 4

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How much more interest is earned on an investment of $12,585 at 3.5% interest over 5 years if the interest is compounded annually rather than earning simple interest? a. They are the same. b. $159.65 c. $2,362.03 d. $12,744.65

Answers

$159.65 is earned if compounded annually rather than simple interest.

The simple interest is calculated using the formula:

I = PRT I = 12,585 * 0.035* 5I = $2,202.375

For the compound interest

A = P(1+r)^n

A = 12585(1+0.035)^5

A = 12585*1.18768

A =14,946.95

Compound interest = 14,946.95 -12585

Compound interest  = $2,361.9528

Taking the difference in the interest = 2,361.9528 - 2,202.375

Difference = $159.65

$159.65 is earned if compounded annually rather than simple interest.

Hence the $159.65 is earned if compounded annually rather than simple interest.

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Answer:

B

Step-by-step explanation:

There are 2.54 cm in 1 inch. they are 100 cm in 1 m, to the nearest meter, how many meters are in 474 inches

Answers

Multiply total meters by 100 to get total centimeters:

6 meters x 100 = 600 centimeters.

Now divide total centimeters by 2.554 to get total inches:

600 centimeters / 2.54 = 236.22 inches.

Rounded to the nearest inch = 236 inches.

What is the slope of the line through the points (2,5) and (6,13)?

A. 1/2
B. -2
C. 7/3
D. 2

Answers

Answer:

1/2

Step-by-step explanation:

The doctor's office where you work needs to store 8 filing cabinets with patient information in one of three secure storage rooms. The filing cabinets need a total of 55 square feet of space. The doctor has asked you to identify which room the filing cabinets will fit

Answers

Answer:

Square B 9 × 7.5

Step-by-step explanation:

The computation is shown below:

9 × 7 = 63 > 55

8 × 5 = 40 < 55

5 × 10 = 50 < 55

As it can be seen that in only one condition the total of square feet is less and in the other conditions the total of square feet is more

Therefore the option Square B is correct

And, the rest of the options are incorrect

The same to be considered

*The sum of 5
and the twice a
number is at
most 27*

Answers

Answer:

Well i think that is true. and the mystery number i believe is 11

Step-by-step explanation:

Well, first subtract 5 from 27, you get 22. Then divide that by two (because that is half). And you get 11.

11 · 11 = 22

22 + 5 = 27

Really hope this helps!

Answer:

x [tex]\leq[/tex] 11

Step-by-step explanation:

The phrase "at most" is telling us that we have an inequality where the answer will be less than or equal to 27. If we let x be our missing number:

2x + 5 [tex]\leq[/tex] 27

2x [tex]\leq[/tex] 22

x [tex]\leq[/tex] 11

i need help solving this problem

Answers

Answer:

[tex]3x^7{\cdot} (4x^{-5})^2=\dfrac{48}{x^3}[/tex]

Step-by-step explanation:

We need to simplify the given expression :

[tex]3x^7{\cdot} (4x^{-5})^2[/tex]

Use property : [tex]x^{-a}=\dfrac{1}{x^a}[/tex]

[tex]3x^7{\cdot} (\dfrac{4}{x^5})^2\\ =3x^7{\cdot} \dfrac{16}{x^{10}}\ \ [\because (x^a)^b=x^{a\times b}]\\\\=\dfrac{48}{x^3}[/tex]

So, the simplified form of the given expression is [tex]\dfrac{48}{x^3}[/tex]

Find h as indicated in the figure. Round to the nearest foot.

Answers

By using trigonometric functions and law of sines, the length h indicated in the figure is approximately 87.997 feet.

What is the value of a length of a triangle within a geometric system?

In this system we find a picture of a geometric system formed by the two triangles, one of which with a right angle. We need to use trigonometric functions, law of sines and law of cosine to determine the missing length. First, use the law of sines:

(129 ft) / sin 33.7° = r / sin 26°

r = 129 ft × sin 26° / sin 33.7°

r ≈ 101.920 ft

Lastly, we find the value of the length h by trigonometric functions:

h = r · sin 59.7°

h = (101.920 ft) · sin 59.7°

h ≈ 87.997 ft

The length h indicated in the figure is approximately 87.997 feet.

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Sally examined the three triangles pictured below. What is a possible conjecture

Answers

Answer:

where are the triangles

A baseball bat factory produces 24,000 bats per day and uses 50 boxes for packing the bats. If the number of boxes needed for packing is proportional to the number of bats produced, how many boxes would be needed on a day when 36,000 bats are produced?

Answers

Answer:

Total boxes= 75

Step-by-step explanation:

Giving the following information:

A baseball bat factory produces 24,000 bats per day and uses 50 boxes for packing the bats.

First, we need to determine the number of bats that fits into a box:

Bats per box= 24,000 / 50

Barts per box= 480

Now, the number of boxes for 36,000 bats:

Total boxes= total bats / bats per box

Total boxes= 36,000/480

Total boxes= 75

Answer:75

Step-by-step explanation:

Bats 24000/50

Box 480

The price paid for a $250 table after a 30% discount is applied

Answers

Answer:

GAFD

Step-by-step explanation:

250*0.3 is 75

250-75 175

so D

GAFD

Hope this helps plz hit the crown :D

Answer:

GEFD

Step-by-step explanation:

Please help asap!! I will mark you as brainliest :)

Answers

Answer:

It does slope= 5/4

Step-by-step explanation:

There is a slope

-2-3/ -3-1

-5/-4

5/4

Answer:

Yes, the line is proportional.

Step-by-step explanation:

As the graph is linear, when x increases, y will increase by an unchanging amount. In this case, when x increase by 1, y will always increase by 1.

If anyone could help me I would really appreciate it. Thank You

Answers

Answer:

with what?

Step-by-step explanation:

help you with what problem or question ?

I need help!! Which is correct???

Answers

Answer:

D

Step-by-step explanation:

The domain of this graph is (-infinity, +infinity) and the range is y > 0.

It is not always increasing, it actually keeps on decreasing as it gets closer to its horizontal asymptote.

Answer: D

Answer: The answer is D.

Struggling, need help solving and a double check lolz

Answers

Answer:

Hello,

answer d

Step-by-step explanation:

I deduced yes.

So 3r+12=4r-2 ==> r=14

And m angle 1+m angle2=7r+10=7*14+10=108

answer d

What is the slope of the line in the graph?
4-
4 5

there is a picture ^

Answers

Answer: x+1 is the equation and the slope will be 1/1

Step-by-step explanation:

A cylindrical mailing tube has a length of 20 inches and diameter of 4 inches.
O
What is the approximate volume of the cylinder, to the nearest tenth of a cubic inch?
(Use 3.14 for pi.)

Answers

Answer:

Volume = 251.2 cubic inches

Step-by-step explanation:

You get the volume of a cylinder by multiplying the area of the base with the height.

Since the diameter is 4 inches, the radius of the base is 4/2 = 2 inches

So, volume = base area* height

                  = 2² * 3.14 * 20

                  = 251.2

The approximate volume of the cylinder mailling tube, to the nearest tenth of a cubic inch is 251.2 in³.

What is of volume of cylinder?

Volume of cylinder is the amount of quantity, which is obtained by the solid or object in the 3 dimensional space.

Volume of cylinder is the can be given as,

[tex]V=\pi r^2h[/tex]

Here, (r) is the radius of the base of the cylinder and (h) is the height of the cylinder.

A cylindrical mailing tube has a length of 20 inches and diameter of 4 inches. The radius is half of the diameter of the cyilnder. Thus the radius of the cylinder is,

[tex]r=\dfrac{4}{2}\\r=2\rm\; in[/tex]

Put the value of radius and height of the cylinder in the above formula as,

[tex]V=3.14 (2)^2(20)\\V=251.2\rm\; in^3[/tex]

Thus, the approximate volume of the cylinder mailling tube, to the nearest tenth of a cubic inch is 251.2 in³.

(Use 3.14 for pi.)

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if i flip a coin 4 times what is the probability of getting at least 1 head​

Answers

Answer:

at least 80%

Step-by-step explanation:

The person above me is correct

ASAP can someone please help me

Answers

What do you need to know?

HELPPP I WILL BRAINLIST!!

Answers

Answer:

Step-by-step explanation:

8 (x -3) +7 = 2x (4 -17)

8(x -3) +7 = 2x (-13)   here was the error because the had 13 that is incorrect

8x -24 +7 = -26x

8x -17 = -26x

-17 = -26x -8x

-17 = -34x

-17/-34 = x

1/2 =x

NEED ANSWER ASAP!!!!!!!!!
An airplane is flying at 32,000 feet when it starts it’s decent. It is
descending at a rate of 2000 feet per minute. Let x represent the minutes
of the flights descent and y represent the plane’s altitude.

a. Fill in the table.
b. Write an equation in slope-intercept form for the plane’s altitude.
c. Graph the equation from part (b).

Answers

Answer:

10,000

Step-by-step explanation:

f = feet above ground

r = rate of descent

m = minutes

 

f = 30000 - r · m

f = 30000 - 20000m

 

After five minutes:

 

f = 30000 - 2000(5)

f = 30000 - 10000

f = 20000

 

After five minutes the plane is at 10,000. feet.

If f(5) = a , what is the value of a?

Answers

Answer:A=5F

Step-by-step explanation: Flip the equation.

EASY POINT FOR Y'ALL

Answers

Answer:

A

Step-by-step explanation:

its A

when somethinng is imput, the output can only be 1 answer

the rest have an imput with two different outputs

take care

Perry currently has $238 dollars and is spending $6 per day. Nick has no money but is earning $8 each day. After how many days will they have the same amount of money?

Answers

Answer:

are you sure it is not 180? if it is it is 12.87

but if it is 238 it is 21 days or something close

A group of friends wants to go to the amusement park. They have $116 to spend on parking and admission. Parking is $10.25, and tickets cost $35.25 per person, including tax. Which equation could be used to determine pp, the number of people who can go to the amusement park?

Answers

Answer:

2 people

Step-by-step explanation:

no. of people = x

total parking costs = 10.25x

total tickets cost = 35.25x

total = 10.25x + 35.25x

suppose 3 people go, then the total cost will be

10.25(3) + 35.25(3) = 136.5 and this is greater than 116

Suppose 2 people go then the cost will be

10.25(2) + 35.25(2) = 91 which is less than 116

so only 2 people can go.

Please help :( 20 points + Brainiest to the best answer :)

Answers

Answer/Step-by-step explanation:

Part A and B:

B to A   0.5 + -1.5 = -2 or I-2I Distance = 2

B to x    0.5 + 0 = 0.5 Distance = 0.5

x to A    0 + - 1.5 = -1.5 or I-1.5I Distance = 1.5

The Demir family has a monthly budget of $5,500. Mrs. Demir works fulltime and takes home $4,000 each month. Mr. Demir works part-time and brings home earns $16 per hour. How many hours per month must Mr. Demir work at his part-time job to make sure that he and Mrs. Demir have met their monthly budget?

Answers

Answer:

93.75 hours

Step-by-step explanation:

The Demir family has a monthly budget of $5,500. Mrs. Demir works fulltime and takes home $4,000 each month.

Hence, the amount of money Mr Demir is meant to bring at the end of the month is :

Monthly budget - Amount of money that Mrs Demir takes home

= $5,500 - $4,000

= $1,500

From the question, we are told that:

Mr. Demir works part-time and brings home earns $16 per hour. How many hours per month must Mr. Demir work at his part-time job to make sure that he and Mrs. Demir have met their monthly budget?

This is calculated as:

$16 = 1 hour

$1,500 = x

Cross Multiply

16 × x = 1500 × 1

x = 1500 /16

x = 93.75 hours

Therefore, Mr Demir must work for 93.75 hours in a month at his part time job.

Write the equation in slope intercept form of line picture in the grapo

Answers

Answer:

y = 3/2x+5

Step-by-step explanation:

It’s the second option!


Twice a number added to another number is 15. The sum of the two numbers is 11. Find the numbers. Write the numbers from least to greatest

Answers

Answer:

(6,8)

I know because I did it coool

Match each slope with the correct line.

3
2/4
2/3
Need help asap!!​

Answers

2, 3, 1! that’s the order
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