13. In the right triangle depicted below, what is the cosine of angle B?

13. In The Right Triangle Depicted Below, What Is The Cosine Of Angle B?

Answers

Answer 1

Answer:

number c

Step-by-step explanation:

.............. just for filling 20 characters

Answer 2

the cosine of angle B

C. 0.767

How do you find the cosine of a triangle?

the cosine of an angle in a right triangle equals the adjacent side divided by the hypotenuse: Also, cos A = sin B = b/c.

The cosine formula to find the side of the triangle is given by: c = √[a2 + b2 – 2ab cos C] Where a,b and c are the sides of the triangle.

Pythagoras Theorem is a generalization of the Law of Cosine.

The law of cosine can be applied in any triangle.

Learn more about the cosine of a triangle here

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Related Questions

The Washington family had dinner at a restaurant and the bill was $85.00. They gave their server a $13.60 tip. What percent of the cost of the meal did they leave as a tip?

Answers

Answer:

The tip for the server is 16%

Step-by-step explanation:

13.6 is 16% of 85.

what is the measure of each angle?

help pls!

will mark brainliest**

geometry!!

Answers

Answer:

A straight angle is the same as half the circle and is 180° whereas a right angle is a quarter of a circle and is 90°. You measure the size of an angle with a protractor. Or could be shown by an arc on the figure to indicate which angles that are congruent

C=180-102=78
d=180-92=88
a+140=2*102 => a=204-140=64
a+b=2d=176 => b=176-64=112

Solve the equation
r-3 = 3(r- 5)​

Answers

Answer:

r=6

Step-by-step explanation:

r-3=3(r-5)

First distribute:

r-3=3r-15

Then subtract r on both sides

-3=2r-15

Then add 15 on both sides

2r=12

Divide by 2 to isolate r

r=6

Hey, so I'm taking a test from k12 and I don't understand what's 36/12?

Answers

The answer is 3. Mark brainliest?

Answer:

if ur talking about 36 divided by 12 in terms of divison then its 3

Step-by-step explanation:

I don't know if im right though

the local weather reports stated there is a 1/4 chance of rain on tuesday how likely is it to rain

Answers

25% chance of rain !!!!!!!!!
The answer should be 25% as that is 1/4 chance. Hope this helps!

Evaluate 17x + 5.5y when x = 6 and y= 9

Answers

Step-by-step explanation:

given x = 6, y = 9,

[tex]17x + 5.5y = 17(6) + 5.5(9) \\ = 102 + 49.5 \\ = 151.5[/tex]

Answer:

151.5

Step-by-step explanation:

= 17(6) + 5.5(9)

= 102 + 49.5

= 151.5

Hope you got it..

Kylie went into a grocery store and bought 3 apples and 4 bananas, costing a total of
$6.50. Lily went into the same grocery store and bought 10 apples and 5 bananas,
costing a total of $17.50. Write a system of equations that could be used to determine
the price of each apple and the price of each banana. Define the variables that you use
to write the system.

Answers

Answer:

17

Step-by-step explanation:

11in 8.1 in 15 in 7 in?

Answers

Answer:

These dimensions represent area of a shape, or area of each side of a 4 sided 3D shape.

The measure of minor arc JL is 60°.

Circle M is shown. Line segments M J and M L are radii. Tangents J K and L K intersect at point K outside of the circle. Arc J L is 60 degrees.

What is the measure of angle JKL?

Answers

Answer:

m∠JKL = 120°

Step-by-step explanation:

The measure of an angle formed by a two tangents drawn from a point outside the circle is the the difference of the intercepted arcs

minor arc JL = 60     major arc JL =  360 - 60 = 300

m∠JKL = 1/2(300 - 60) = 1/2(240) = 120

Help me please I’m stuck

Answers

Answer:

the answer for first is 3

second is 4

3. Scout is conducting a research project on traffic patterns
in her town. She realizes that at 6:00 AM each morning, the
traffic lights reset and function on a pattern. The traffic light
on Main St. turns red every 7 minutes. The traffic light on Elm
St. turns red every 15 minutes. At what time will both lights be
red at the same time?

Answers

Answer:

7:45

Step-by-step explanation:

Since they both turn red at differnt times, you have to find a multiple to find the time they will be both on

Main St: 7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77, 84, 91, 98, 105

Elm St. 15, 30, 45, 60, 75, 90, 105

They will both turn on 105 minutes or 1 hour and 45 minutes from 6

6 + 1 hr 45 min = 7:45

Plz help me! Brainlist will be picked.

Answers

Answer:

$2.96

Step-by-step explanation:

1.15x = 3.40   x = last year's price.  If there price was exactly the same, I would put 1x, but this year's price is 15% or .15 higher.

1.15x = 3.40  Divide both sides by 1.15 and round to the nearest cent.

x = 2.96

Check:

Last year + 15% (.15)

2.96 + .15(2.96)

2.96 + .44 rounded to the nearest cent

3.40

A tangent to a circle is a line that cuts it in exactly 1 point.
true or false

Answers

I think the answer is faulse

Answer:

true

Step-by-step explanation:

because it touches the end of the circle it doesn't intersect in more than one

Heeelp!!
Henry loves to play the piano but doesn't like practicing the exercises his piano teacher assigns. Henry knows the exerc
ises will help him play better though, so he tries to
motivate himself using his favorite treat - chocolate chip cookies. There is a proportional relationship between the am
ount of time (in hours) that Henry practices the piano,
x, and how many cookies he gives himself.y.
When Henry practices for 3 hours, he gives himself 9 cookies.
Write the equation for the relationship between x and y.

Answers

Answer:

x3=y

Step-by-step explanation:

If f(x) = 2x - 1, then f(-2) =

Answers

Answer:

-5

Step-by-step explanation:

for x=-2

f(x)=2(-2)-1

f(x)=-5

Solve for x and found your answer to the nearest tenth.

Answers

Answer:

11.1

Step-by-step explanation:

To find the side measurement we have to use trig, and the trig function Cosine, or cos. We use the because cosθ=[tex]\frac{adjecent}{hypotenuse}[/tex]. So cosθ=[tex]\frac{x}{15}[/tex], then to isolate x multiply both sides by 15. Now we have 15cos42=x, plugging this into the equation we get that x=11.1

Find a formula for an arithmetic sequence that begins 80, 83, 86, 89, ...​

Answers

Answer:

[tex]a_{n}[/tex] = 3n + 77

Step-by-step explanation:

The nth term of an arithmetic sequence is

[tex]a_{n}[/tex] = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = 80 and d = a₂ - a₁ = 83 - 80 = 3 , then

[tex]a_{n}[/tex] = 80 + 3(n - 1) = 80 + 3n - 3 = 3n + 77

Write an equation of the perpendicular bisector of the segment with endpoints M(10,-7) and N(-4,1).​

Answers

(Step#1): Find the Perpendicular bisector of a line segment with endpoints

(Step#2): Find a Point on the perpendicular bisector
(Which is the midpoint of a given line segment)
Using the midpoint Formula which is:
(X3, Y3) = (X1 +X22, Y1 + Y22)

I Hope this helps you!!!

Liam is swimming at 3 kilometers per hour. How long will it take Liam to travel 4.5 kilometers?

Answers

Answer:

One hour and thirty minutes.

Explanation:

3km = 1 hour

1.5km = 30 min (half of distance, half of time)

4.5km = 1 hour and 30 min

Answer: Uhhhh

Step-by-step explanation:

1 hour 30 but stop saying Uhhhh for the answer to some people's questions okay? Thanks!

please answer this question for me

Answers

Answer:

200

Step-by-step explanation:

2*5=10

4*5=20

20*10=200

Learn with an example v Luke counted the number of silver beads on each bracelet at Lexington Jewelry, the store where he works. Silverbandaran huscolat​

Answers

Where are the choices?

Tameka is seeking a loan with a simple interest rate of 8% per year. If she borrows $5,000, how much interest will she be charged after 24 months?

Answers

Answer:

$800

Step-by-step explanation:

5000 × 8% = $400(interest in a year)

400 × 2 = $800(24 months=2years)

UVWX is a parallelogram. What is the measure of angle XUV?

Answers

Answer:

We need more info.

Step-by-step explanation:

Even though we need more information to solve this, I can explain how to. if you want me to solve it for you, comment on here and tell me if they gave you any angle measurements. Until then, I'll tell you how.

Look at the attached photo as you read to help you visualize this. Assuming your parallelogram looks roughly like the drawing, you can see that ∠U = ∠W, and ∠X = ∠V. We can determine that because - when working with parallelograms - the angle opposite of the other is always equal. For instance, if the drawing I made is accurate to the one you're looking at, then if ∠U was equal to let's say 120°, then that means that the exact opposite angle, ∠W, would also be equal to 120°.

Offer is still on the table though. If the question gave you any information about any of the degree measures, comment it and I'll solve the problem for you.

PLEASE HELP I WILL MARK YOU BRAINLIEST.

Answers

Answer and working out attached below. Hope this helps.

Answer: The answer is 8.808!

Step-by-step explanation: So you need to subtract 1.192 from 10

and its suppose to give you 8.808.

Is [tex]\frac{x^{2}}{2}[/tex] an equation that can be simplified? If so, what is its simplified form?

Answers

1/2 x^2
hope this helped you

BRAINIEST ANSWER MATH!

Directions: find the surface area of each figure. :)

Answers

Answer:

I'm not sure for the first one but for the second I got 1255.21

Please Help
Me solve this question

Answers

Answer:

2410.26

Step-by-step explanation:

This is a bit complicated but, you have to take 3.5% of 2,250 (2,250*0.035=78.75). Then add 78.75 to the total (2,250) (2328.75 new total). Next take 3.5% of the new total and repeat that process and you end up with 241.26.

Mateo decide pedir un préstamo de 600 soles durante 2 años a un banco el cual le ofrece una tasa de interés anual de 16%calcula al interés simple y el monto total que pagará al término de 2 años

Answers

Answer:

192 and 792

Step-by-step explanation:

Given that

The principal is 600 soles

The Time period is 2 years

The Rate of interest is 16%

We need to find out the simple interest and the total amount paid at the end of 2 years

As we know that

SImple interest is

= Principal × rate of interest × time period

= 600 × 16% × 2

= 192

And, the amount is

= Principal + interest

= 600 + 192

= 792

PLEASE HELP, ILL GIVE BRAINLIEST!!

Answers

Answer:

as mentioned above we have to solve it by cross multiplication.

Step-by-step explanation:

So,

4(3x-3)=5(2x-2)

12x-12=10x-10

12x-10x=-10+12

2x=2

X=2/2=1 Answer

hope it helps!!

Answer:

x = 1

Step-by-step explanation:

Here's your solution

=> (3x - 3)/5 = (2x - 2)/4

=> 4(3x -3) = 5(2x - 2)

=> 12x - 12 = 10x - 10

=> 2x = 2

=> x = 2/2

=> x = 1

hope it helps

help please, i'll give the crown thing if I can

Answers

Answer:

i) p = 4

ii) p = 8

iii) p = 12

Step-by-step explanation:

Here, we need to understand the initial relation

Mathematically, we have this as;

2.79 * p = c

So let us calculate the value of p for each value of c

i) 2.79p = 11.16

p = 11.16/2.79

p = 4

ii) 2.79p = 22.32

p = 22.32/2.79

p = 8

iii) 2.79p = 33.48

p = 33.48/2.79 = 12

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