Find mZB. Round to the nearest degree. 11 B В 7. 15

1 answer
Question:

Find mZB.
Round to the nearest degree.
11
B В
7.
15

Answers

Answer:m∠B = 111ºStep-by-step explanation:use law of cosinesc² = a² + b² - 2ab*cosC---------------------------------15² = 7² + 11² - 2(7)(11)cosB225 = 49 + 121 - 154cosB225 = 170 - 154cosBSubtract 170 form both sides55 = -154cosBDivide both sides by -154-0.3571428571 = cosBm∠B = arccos -0.3571428571use calculatorm∠B = 110.924832425009406Roundedm∠B = 111º

Similar Solved Questions

2 answers

Although Mexico is bordered by ocean on two sides, there is only one beach that tourists are allowed to visit. A:true B:false

Although Mexico is bordered by ocean on two sides, there is only one beach that tourists are allowed to visit. A:true B:false...
1 answer

Explain how you would decide which represents a greater mass: 3.25 x 1022 atoms of Ca or 2.45 grams of Mg?

Explain how you would decide which represents a greater mass: 3.25 x 1022 atoms of Ca or 2.45 grams of Mg?...
1 answer

Draw a mechanism for the reaction of the aldehyde with hydronium ion. In the first box, draw any necessary curved arrows. Show the products of the reaction in the second box. Include any nonzero formal charges and all lone pairs of electrons.

Draw a mechanism for the reaction of the aldehyde with hydronium ion. In the first box, draw any necessary curved arrows. Show the products of the reaction in the second box. Include any nonzero formal charges and all lone pairs of electrons....
2 answers

Joy bought b boxes of granola bars. There are 10 granola bars in each box. Write an expression that shows how many granola bars Joy bought.

Joy bought b boxes of granola bars. There are 10 granola bars in each box. Write an expression that shows how many granola bars Joy bought....
1 answer

List and briefly describe the six consequences of WWII.

List and briefly describe the six consequences of WWII....
2 answers

Hellpppppoppopppppppp

hellpppppoppopppppppp...
1 answer

What is the domain of this relation?

What is the domain of this relation?...
2 answers

3 feet= ? inches. what is it? TwT

3 feet= ? inches. what is it? TwT...
1 answer

Please help me on this and explain it.

Please help me on this and explain it....
1 answer

Which rules could describe the rotation? Select two options

Which rules could describe the rotation? Select two options...
1 answer

One beaver can chew though a tree that is 15 cm thick in 20 min if it works at the same pase how long will it tack one beaver to cut down enough trees to create a stack 1.2 meters tall

One beaver can chew though a tree that is 15 cm thick in 20 min if it works at the same pase how long will it tack one beaver to cut down enough trees to create a stack 1.2 meters tall...
2 answers

J'aime a.i likeb.i hatec.i dislike​

j'aime a.i likeb.i hatec.i dislike​...
2 answers

PowerPoint: In the Outline pane, a highlighted slide icon next to the slide number indicates that the slide is selected. True or False?

PowerPoint: In the Outline pane, a highlighted slide icon next to the slide number indicates that the slide is selected. True or False?...
1 answer

How did nationalism in japan differ from nationalism in itlay

how did nationalism in japan differ from nationalism in itlay...
2 answers

Why did roman and carthage become moratal enemies

Why did roman and carthage become moratal enemies...
1 answer

What is the total area of this prism? T.A=

what is the total area of this prism? T.A=...
2 answers

ANSWER ASAPPPP! BOOOOO What is the only career choice in the following list that does NOT require a 4-year college degree in an accredited program? A) elementary school teachers B) special education teachers C) psychologists D) nurses E) paraprofessionals F) counselors G) speech-language pathologists

ANSWER ASAPPPP! BOOOOO What is the only career choice in the following list that does NOT require a 4-year college degree in an accredited program? A) elementary school teachers B) special education teachers C) psychologists D) nurses E) paraprofessionals F) counselors G) speech-language pathologist...
1 answer

Abriel's father has a garden in the back yard. The dimensions of the garden are shown here. A green rectangle is shown. The width is labeled as 2 and two-thirds feet. The length is labeled as 7 and three-fourths feet.Part A Calculate the area of the garden. Show at least one step before you show your solution.Part B You found the area of the garden in Part A. Explain briefly, without doing any calculations, how you would find 5 6 of this area.

abriel's father has a garden in the back yard. The dimensions of the garden are shown here. A green rectangle is shown. The width is labeled as 2 and two-thirds feet. The length is labeled as 7 and three-fourths feet.Part A Calculate the area of the garden. Show at least one step before you show yo...

-- 0.040768--