In ΔIJK, k = 57 inches, i = 37 inches and ∠J=141°. Find ∠I, to the nearest degree.

Answers

Answer 1

Answer:

<I= 15degrees

Step-by-step explanation:

Using the cosine rule formulae;

j² = i²+k²-2i cos <J

j² = 37²+57² - 2(37)(57)cos <141

j² = 1369+ 3249- 4218cos <141

j² = 4618- 4218cos <141

j² = 4618-(-3,278)

j²= 7,896

j = √7,896

j = 88.86inches

Next is to get <I

i² = j²+k²-2jk cos <I

37² = 88.86²+57² - 2(88.86)(57)cos <I

1369 = 7,896.0996+ 3249- 10,130.04cos <I

1369 = 11,145.0996 - 10,130.04cos <I

1369 - 11,145.0996 = - 10,130.04cos <I

-9,776.0996=- 10,130.04cos <I

cos <I =9,776.0996 /10,130.04

cos<I = 0.96506

<I = 15.19

<I= 15degrees


Related Questions

What is the amount of material required to creat a Toblerone box? The triangular base is equilateral.

Answers

Answer:

21 x 3.1 / 2 = 32.55

Step-by-step explanation:

PLS HELP GIVING BRAINLIEST

Answers

Answer:

1. reflection- a figure is flipped over

2. translation- a figure is slide

3. rotation- a figure is turned

1. Reflection —> a figure is flipped over
2. translation—> a figure is slid
3. Rotation—> a figure is turned

Hope this helps!

Write an equation for the data shown in each table.

Answers

Answer:

1) f(x) = 500·(1.1)ˣ

2) f(x) = 500·(0.9)ˣ

Step-by-step explanation:

1) The given values in the table are;

x; 0, 1, 2, 3

f(x); 500, 550, 605, 665.5

By observation, we have that each two subsequent term of f(x) have a common ratio, given as follows;

550/500 = 11/10 = 1.1 = 605/550 = 665.5/605

From which we have;

The values of f(x) are in a geometric progression

The nth of a geometric progression = a·rⁿ

The common ratio, r = 1.1

The first term, a = 500

The number of terms, n = x

Therefore, xth term, f(x) = a×(r)ˣ

Substituting the values gives;

The equation for the data shown in the table is f(x) = 500·(1.1)ˣ

2) The given table of values is presented as follows;

x; 0, 1, 2, 3

f(x); 500, 450, 405, 364.5

The common ratio, f(xₙ)/f(xₙ₋₁) = 450/500 = 9/10 = 0.9 = 405/450 = 364.5/405

The terms of f(x) are in a geometric progression

The first term. a = 500

The common ratio, r = 9/10 = 0.9

The nth term of a geometric progression, G.P. = a·rⁿ

By plugging in the values of 'a', 'r', and 'n', the value of the xth term, f(x), therefore;

The equation for the data shown in the table is f(x) = 500·(0.9)ˣ.

Application: Sandy wants to cover a wooden cylinder with a diameter of 1 ft and a height of 4 ft with carpet to build a scratching post for her cats. What are the steps she needs to take to complete this task?

Answers

Step-by-step explanation:

Finding the (maximum) respective prime powers would yield the answer. Also we need not ... Is perfectly divisible by 720^n? ... So we can say that for any positive value of n it not divisible.

Question is in photo.
Thanks

Answers

Answer:

what do you mean for this question. What do you need help on?

Write the equation of the line in fully simplified slope-intercept form.
12
11
10
-12-11-10-9-8
1 2 3
5 6
8 9 10 11 12
-3
-4
-9
-10

Answers

Answer:

y=1/2x+6

Step-by-step explanation:

solve for " x "

[tex]x = 42 - 9[/tex]

Answers

[tex]\implies {\blue {\boxed {\boxed {\purple {\sf {x\:=\:33}}}}}}[/tex]

[tex]\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\red{:}}}}}[/tex]

[tex]x = 42 - 9[/tex]

➼[tex]\:x = 33[/tex]

Therefore, the value of [tex]x[/tex] is 33.

[tex]\sf\pink{Thank\:you. \:ヅ}[/tex]

Answer:

x =33

Step-by-step explanation:

x = 42-9

We are solving for x, which is already isolated

42-9 = 33

x = 33

Check 33+9 = 42

A group of people were asked if they had run a red light in the last year where 140 responded "yes," and 208 responded "no." If a person is randomly chosen, find the probability that he/she has run a red light in the last year. Give your answer as a fraction or decimal.

Answers

Answer:

35/87

Step-by-step explanation:

To find the probability, we must find (total number of favorable outcomes)/ (total number of outcomes). We thus need to find the total number of outcomes. As people have only answered "yes" or "no", the total number of outcomes is 208+140 = 348.

The total number of favorable outcomes, or what we're looking for, is 140 (140 people responded that they had run a red light). Thus, our fraction is 140/348, or 35/87

The two lines graphed below are not parallel. How many solutions are there to
the system of equations?
5
5
A. Infinitely many
B. One
C. Two
D. Zero

Answers

Answer:B

Step-by-step explanation:

simple, there is one point of intersection or where the lines meet

Answer:

B:  One solution

Step-by-step explanation:

The graphs show that the two lines intersect at one point.  This point represents the ONE solution of this system of equations.

If the lines did not intersect, the system would have no solution.

If the lines coincide, the system would have infinitely many solutions.

Solve for x.
3x + 7
2x + 3)

Answers

Answer: x = 34

Step-by-step explanation:

2x+3+3x+7=180

5x+10=180

5x=170

x = 34

x=34 your welcome !!!

What are biofertilisiers​

Answers

Bio fertilizer :- Biofertilisers are organisms that enrich the nutrient quality of the soil. The main source f biofertilizers are bacteria, fungi and cyanobacteria.

HOPE IT HELPS ❣️

Someone please help me It’s getting late and it’s due tomorrow

Explain why the equation
1- x= 5(x - 4) - 6x has no solution.

Answers

Answer:

After the distribution of the 5 and the addition of x to both sides, the x variable is cancelled out leaving 1 = - 20.

This statement is false. Hence, no solution

Step-by-step explanation:

1 - x = 5(x - 4) - 6x (Distribute 5)

1 - x = 5x - 20 - 6x (Combine like terms)

1 - x = -x - 20  add x to both sides

1 = - 20 False

How many kilograms equals 984.2 grams?

Answers

0.9842 kilograms equal to 984.2 grams

Simplify (4x - 6) - (3x + 6).
Ox- 12
O -X- 12
Ox+ 12
0-x + 12

Answers

Answer:

Ox-12

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

(4x - 6) - (3x + 6)              Remove the brackets

4x - 6 - 3x - 6                   Collect like terms

4x - 3x - 6 -6

x - 12

The answer   is A

One day in the playground,the ratio of the number of boy to the number of girl is 3:5 later 6girls come, 9boy leave, the ratio of the number of girl become 1:4. Find the difference between the number of boy and girl originally

Answers

Answer:

The number of boys are 18 and the number of girls are 30.

Step-by-step explanation:

The ratio of number of girls to the boys = 3 : 5

Let the number of girls is g and boys is b initially.

b : g = 3 : 5

5 b = 3 g ..... (1)

Now, girls are 6 + g and boys are b - 9

So, the ratio is

(b - 9) : (6 + g) = 1 : 4

4 b - 36 = 6 + g

4 b - g = 42 .... (2)

From ( 1 ) and ( 2 )

[tex]4 b - \frac {5 b}{3}= 42\\\\\frac{7 b }{3} = 42\\\\b = 18[/tex]

And , g = 5 x 18/3 = 30

So, the number of boys are 18 and the number of girls are 30.  

Find the length of the missing side

Answers

Answer:

25 in and 9 cm

Step-by-step explanation:

Using Pythagoras' identity

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides.

let x be the missing side

A

x² = 7² + 24² = 49 + 576 = 625 ( take square root of both sides )

x = [tex]\sqrt{625}[/tex] = 25

B

x² + 12² = 15²

x² + 144 = 225 ( subtract 144 from both sides )

x² = 81 ( take square root of both sides )

x = [tex]\sqrt{81}[/tex] = 9

Answer:

A) [tex]\sqrt{7^{2} +24^{2} }[/tex] = 25

B) [tex]15^{2} -12^{2} = B^{2}[/tex]

   [tex]B^{2} =81\\[/tex]

B = 9

Step-by-step explanation:

0lease help I would really appreciate ​

Answers

Step-by-step explanation:

a)50°

b)75°

c)125°

d)d=40°

Answer:

Step-by-step explanation:

A)180-(60+70)=50

C)180-30=150 150/2=75

B)180-(35+20)=125

D)2d+d+60=180

3d+60=180

3d=120 ; d=40 ; 2d=40×2=80

What is the surface area of LMNOPQRS? If necessary, round your answer to the nearest tenth.

Answers

Answer:

5

Step-by-step explanation:

¿Cuánto mide el lado de un terreno cuadrado, si su área 144 m2?

Answers

Answer:

72

Step-by-step explanation:

all you had to do was divide by 2

3/2 Find three rational numbers between and 5/2 ?​

Answers

Answer:

Step-by-step explanation:

[tex]\frac{3*4}{2*4}=\frac{12}{8}\\\\\frac{5*4}{2*4}=\frac{20}{8}[/tex]

Three rational numbers:

[tex]\frac{13}{8};\frac{14}{8};\frac{15}{8}[/tex]

The tile along the edge of a triangular community pool needs to be replaced. A right triangles, where the hypotenuse is labeled 8 x squared, the height is labeled 4 x squared + 15, and the base is labeled 8 x + 10. Which expression represents the total perimeter of the pool edge? 12x2 + 15 20x2 + 25 12x2 + 8x + 25 24x2 + 16x + 50

Answers

Answer:

C. 12x² + 8x + 25

Step-by-step explanation:

A. 12x² + 15

B. 20x² + 25

C. 12x² + 8x + 25

D. 24x² + 16x + 50

Hypotenuse = 8x²

Height = 4x² + 15

Base = 8x + 10

Perimeter of the triangle = hypotenuse + height + base

= 8x² + (4x² + 15) + (8x + 10)

= 8x² + 4x² + 15 + 8x + 10

Perimeter of the triangle = 12x² + 8x + 25

C. 12x² + 8x + 25

Answer:The answer is C

(b) Find the coordinate of the foot of the perpendicular from (4,-2) to line 2x-3y-4=0

Answers

Answer:

{3,-1}

Step-by-step explanation:

[tex]carry\: on \: learning[/tex]

translate the sentence into an inequality


the sum of 2 and y is greater than 16

Answers

Answer:

2 + y > 16

Step-by-step explanation:

the sum of 2 and y is greater than 16

                   2 + y           >                   16

2 + y > 16

2+y > 16 (sum means addition)

A 68-year old retiree has a pension savings of $51,000, a 401k of $58,000, and an IRA account of $68,000. Before 2008, he had 2% more cash in the pension, 12% more in the IRA, and −1% in the 401k. He wants to take out 2% from each account before he turns 72, which will cost him a penalty of an extra 1% from the pension, 2% from the 401k, and 6% from the IRA. What is the relevant information for the amount that the retiree will have in his pension if he doesn't take money out now?

A: The retiree had 2% more cash in the pension in 2008
B: The retiree has a pension savings of $51,000
C: The retiree has a 401k of $58,000
D: The retiree has an IRA account of $68,000

Answers

Answer:

B: The retiree has a pension savings of $51,000

Step-by-step explanation:

Can someone pleaseee help me been stuck on this problem?

Answers

Answer:

-10

-7

-4

-1

2

Step-by-step explanation:

Substitute  in the x value

Remember a negative minus a negative is a negative.

Answer:

(-2,-10),(-1,-7),(0,-4),(1,-1),(2,2)

Step-by-step explanation:

f(x)=3x-4

f(x)=y

y=3x-4 ; x(-2)

y=3(-2)-4

y= -6-4

y= -10

y=3x-4

y = -1(3)-4

y= -7

y= 3x-4

y = 3(0) -4

y= -4

y= 3x-4

y = 3(1)-4

y= -1

y=3x-4

y=3(2)-4

y= 6-4

y =2

Solve for x
-6/5x-4=-46​

Answers

Answer:

x = 35

Step-by-step explanation:

-6/5x-4=-46​

Add 4 to each side

-6/5x-4+4=-46+4

-6/5x=-42​​

Multiply each side by -5/6 to isolate x

-5/6 * -6/5x=-42 * -5/6​

x = 35

Answer:

x = 35

Step-by-step explanation:

-6 / 5x - 4 = - 46

Add 4 to each side

- 6 / 5 x - 4 + 4 = - 46 + 4

- 6 / 5 x = - 42

To find x, multiply 42 by 5 and then divide by 6.

x = 42 × 5 / 6

x = 7 × 5

x = 35

If f(x)=2x2+3x−6, determine the value of f(2)

Answers

Answer: 4

2x2+3(2)−6

lets make sure we do OOO (order of operations correctly)

2x2+3(2)−6

4+3(2)−6

4+6−6

10−6

4

Step-by-step explanation:

Montserrat is training for her first race. In her first training week she runs 3 km, and in the second training week she runs 3.5 km. Every week she runs 0.5 km more than the previous one.
a Find how many kilometres Montserrat runs in her 10th training week.
b Calculate the total number of kilometres that Montserrat will have run by her 15th training week.​

Answers

Answer:8

Step-by-step explanation:

0.5*10=5

3+5=8

a. Montserrat runs 7.5 kilometers in her 10th training week.

b. by her 15th training week, Montserrat will have run a total of 78.75 kilometers.

To find how many kilometers Montserrat runs in her 10th training week, we can use the arithmetic sequence formula to find the nth term:

[tex]a_n = a_1 + (n - 1) * d[/tex]

where:

[tex]a_n[/tex] is the nth term (the number of kilometers in the nth week),

[tex]a_1[/tex] is the first term (the number of kilometers in the first week, which is 3 km),

n is the number of weeks (in this case, 10), and

d is the common difference (the amount by which the distance increases each week, which is 0.5 km).

[tex]a_{10} = 3 + (10 - 1) * 0.5\\a_{10} = 3 + 9 * 0.5\\a_{10} = 3 + 4.5\\a_{10 }= 7.5 km[/tex]

So, Montserrat runs 7.5 kilometers in her 10th training week.

b. Next, to calculate the total number of kilometers Montserrat will have run by her 15th training week, we use the sum of the first n terms formula:

[tex]S_n = (n / 2) * (a_1 + a_n)[/tex]

where:

[tex]S_n[/tex] is the sum of the first n terms (the total number of kilometers run by the nth week),

[tex]a_1[/tex] is the first term (3 km),

[tex]a_n[/tex] is the nth term (which we found to be 7.5 km in her 10th week),

n is the number of weeks (15 in this case).

[tex]S_{15} = (15 / 2) * (3 + 7.5)\\S_{15} = 7.5 * 10.5\\S_{15} = 78.75 km[/tex]

So, by her 15th training week, Montserrat will have run a total of 78.75 kilometers.

To know more about training:

https://brainly.com/question/28942187

#SPJ3

what should I do if I accidentally break my pet rock that has googly eyes on him? i need to fix Rocky Ronny McRonkster

Answers

Answer:

Try to glue it back together

Step-by-step explanation:

I heard gorilla glue works, but be careful and don't get the glue on your body. If that happens it can cause irritation and call posion control immediately.

Solve for x. Round to the nearest tenth, if necessary.
K
L
99
х
15°
M

Answers

Answer:

x≈95,6

Step-by-step explanation:

x= cos 15⁰ x 99 ≈95,6

Other Questions
plz help me I will give u branist and like u back plz help me I will also follow u Please help me solve my problem!!! Visual and literary artists have often sought and found inspiration from songst or f The Earth has height, width, and depth. This means that it exists in _____ dimensions.A fourB. threeC. twoD. onePlease select the best answer from the choices provided Sameer lives in a small town near Bhopal [India]. He tells his friend Arjun that they will not be able to sleep tonight. A day and night cricket match between India and England had started, at 2 p.M. In London. At the same time what was the local time of Bhopal? Nathalie: De quoi as-tu besoin pour nettoyer le sol? Julie: Pour nettoyer le sol, jai besoin _________________________. A. dun balai et une pelle B. dune ponge et de gants C. du dtergent et dun assouplissant D. dun sac poubelle et du sable E. dune assiette et un verre The second citation lists information from what type of source? A. magazine B. book C. Web site D. DVD Which group of Jews was most similar to Jesus of Nazareth? Why? PageA car is moving at a rate of 72 km/ hr. How fardoes the moves stop after 4 seconds Cules de los siguientes son ejemplos de influencias domsticas en la poltica exterior de los Estados Unidos?Marque todo lo que corresponda. medios de noticias alianzas activistas ambientales amenazas de seguridad moneda fuerte relaciones comerciales Recently, John found out that he couldn't put on hisfavourite jeans.So, he quickly measured his weightand he knew he had obesity .After that, John askedsome suggestions from his friend.His friendsuggested John ate a healthy diet rich invegetables, fruits and whole grains.He also told Johnhad to do exercise such as playing badminton atleast 3 times in the week to increase weight loss.Next, John played badminton with his friends at thebadminton hall in the evening.Then, John had abalanced and nutritions diet in everymeal. Finally,John lost weight by leaps and bounds andbecame a slim person. CAN HELP ME TO CHECK WHETTER IS CORRECT OR NOT? Let f(x)=2(4)x+12. The graph of f(x) is translated 7 units to the left to form the graph of g(x). Which of the following functions at the same organizational level as the kidney in the human excretory system?A. skeletonB. epithelial tissueC. urinary bladderD. a squamous cell Can I plsss get some helpp True or False: The following lengths form a right triangle:a = 8 unitsb = 6 unitsC = 10 units10op6O TrueO False Which of the following is next in the series PLZZ HELPPP!!!!!!!!!! What is the equation of the line that is perpendicular to the given line and passes through the point (5, 3)? A.) 4x - 5y = 5 B.) 5x + 4y = 37 C.) 4x + 5y = 5 D.) 5x - 4y = 8 Find the dfference between (8a + 2b - 4) and (3b - 5) In which situation would a person pay more in sales tax than he or she did theyear before?O A. The value of the person's home increased.O B. The salary the person earned decreased.O C. The amount the person spent on electronics increased.O D. The number of dependents the person had decreased. Convert Rev/min to rad/s x 2pie/60?Anyone knows this please?