1. In AABC, if a = 8, b = 2, and c = 7. What is the value of cos C?

Answers

Answer 1

Answer: I’m a little confused do you have a picture I could solve for cos then

Related Questions

Draw area model of 4.6 and 3
jamal finished 5/6 of his homework. Margaret finished 3/4 of her homework, and Steve finished 10/12 of his homework. Which two students finished the same amount of homework?
PLEASE HELP ME?? 10 POINTS?! HELP ASAP.
Simplify 3a + 2b - 8a + b
What are rational numbers and how do you tell the difference between integers? Please answer what are rational numbers first.

The number 450 is increased by 75%. The result is then decreased by 90%. What is the final number?

Answers

Answer:

The final number is 78.75

Step-by-step explanation:

we know that

1) The number 450 is increased by 75%

The number 450 represent 100%

Remember that

$100\%+75\%=175\%=175/100=1.75$

The increased number is

$450(1.75)=787.5$

2) The result is then decreased by 90%

In this moment

787.5 represent the 100%

Remember that

$100\%-90\%=10\%=10/100=0.10$

The decreased number is

$787.5(0.10)= 78.75$

therefore

The final number is 78.75

What is the unit rate for 183 miles in 3 hours????????

Answers

61:1 or 61 miles per hour! This is because 183 divided by 3 is 61!

Hope this helped!

Let me help you out!

A unit rate is something per one.

That means that we also need to include units so that we could know what we are talking about.

Basically divide, since this one is simple.

183/3 = 61

61 miles per hour is the unit rate

Hollis house is located at (-1,4). She can walk in a straight line to get to Jedds house. A fast food resturant is located at (-3,2) and partitions the way from hollis house to jedds house by a ration of 1:2 find the coordinates of jedds house

Answers

Answer:

The coordinates of Jedds house are (-7 , -2)

Step-by-step explanation:

* Lets explain how to solve the problem

- If point (x , y) divide the distance between the two points

$(x_(1),y_(1))$ and $(x_(2),y_(2))$ at the ratio

$(m_(1):m_(1))$ , then

$x=(x_(1)m_(2)+x_(2)m_(1))/(m_(1)+m_(2))$ and

$y=(y_(1)m_(2)+y_(2)m_(1))/(m_(1)+m_(2))$

* Lets solve the problem

∵ Hollis house is located at (-1 , 4)

∴ $(x_(1),y_(1))$ = (-1 , 4)

∵ She can walk in a straight line to get to Jedds house

∵ The restaurant is located at (-3 , 2) and partitions the way from

Hollis house to Jedds house by a ration of 1 : 2

∴ (x , y) = (-3 , 2)

∴ $(m_(1):m_(1))$ = 1 : 2

- Lets consider that Jedds house is located at $(x_(2),y_(2))$

∴ $-3=(-1(2)+x_(2)(1))/(1+2)$

∴ $-3=(-2+x_(2))/(3)$

- Multiply both sides by 3

∴ $-9=-2+x_(2)$

- Add 2 for both sides

∴ $-7=x_(2)$

∴ $2=(4(2)+y_(2)(1))/(1+2)$

∴ $2=(8+y_(2))/(3)$

- Multiply both sides by 3

∴ $6=8+y_(2)$

- Subtract 8 for both sides

∴ $-2=y_(2)$

∴ The coordinates of Jedds house are (-7 , -2)

Answer:

(-7 , -2)

Step-by-step explanation:

The above answer is correct

What is the perimeter of ^PQR with vertices P(-2,9) Q(7,-3) and R(-2,-3) in the coordinate plane?

Answers

The perimeter of the given triangle in the coordinate plane is 36 units.

Given:

The triangle PQR with vertices P(-2,9) Q(7,-3) and R(-2,-3) in the coordinate plane.

To find:

The perimeter of the triangle.

Solution:

The distance formula to find the distance between two points ( $x_1,y_1$ ) and

( $x_2,y_2$ ):

$d=\sqr{(x_2-x_1)^2+(y_2-y_1)^2}$

The distance between point P(-2,9) and Q(7,-3)

$PQ=√((7-(-2))^2+((-3)-9)^2)\n\nPQ=√((9)^2+(-12)^2)\n\nPQ=15 units$

The distance between point Q(7,-3) and R(-2,-3)

$QR=√(((-2)-7)^2+((-3)-(-3))^2)\n\nQR=√((-9)^2+(0)^2)\n\nQR=9units$

The distance between point R(-2,-3) and P(-2,9)

$RP =√(((-2)-(-2))^2+(9-(-3))^2)\n\nRP =√((0)^2+(12)^2)\n\nRP =12units$

The perimeter of the triangle will be given by"

$P= PQ+QR+RP\n\n=15 units+9 units+12 units = 36 units$

The perimeter of the given triangle in the coordinate plane is 36 units.

Learn more about the distance formula here:

brainly.com/question/12674171?referrer=searchResults

brainly.com/question/12662141?referrer=searchResults

Using the distance formula we can determine the perimeter of PQR.

Distance formula: d=√(x-x1)^2+(y-y1)^2
distance of PR: √(-2+2)^2+(9+3)^2= 12
distance of QR: √(7+2)^2+(-3+3)^2=9
distance of PQ: √(7+2)^2+(-3-9)^2= 15

Perimeter: 12+9+15=36

Find the sum or diffrence write your answer in simplest form. wats the estimate5/6 + 7/8

Answers

$(5)/(6)$ + $(7)/(8)$

Convert your denominators into a same number..

$(20)/(24) ~+~ (21)/(24) ~=~ (41)/(24)$

$(41)/(24)$ as a mixed number = $1 (17)/(24)$

Your answer - $1 (17)/(24)$

Whats the surface area of this prism plz help.Urgent

Answers

Answer:

The surface area of a solid object is a measure of the total area that the surface of the object occupies. The mathematical definition of surface area in the presence of curved surfaces is considerably more involved than the definition of arc length of one-dimensional curves, or of the surface area for polyhedra (i.e., objects with flat polygonal faces), for which the surface area is the sum of the areas of its faces. Smooth surfaces, such as a sphere, are assigned surface area using their representation as parametric surfaces. This definition of surface area is based on methods of infinitesimal calculus and involves partial derivatives and double integration.

Step-by-step explanation:

136 squared whatever’s

Other Questions

Andrew is trying to create a number puzzle for his younger sister to solve. He challenges his sister to find the mustery number. when 4 is subtracted from half a number the result is 5. The equation to represent the mystery number is 1/2m -4 =. Andrews sister tries to guess the mustery number. Her first gues is 30. Is she correct? why or why not? What is the correct answer?

What is 2/3 times 4/5 in fraction form

Two glasses together contain 280 mLof water. The first glass contains 80 ml more than the second glass. How much water does the first glass contain?

How to i add fractions? EX-3/6 + 1/6=4/? I really need help i forgot how to add them! Do i add the bottom or just the top?