@ 45% AT&T 4:01 PM Homework List Вack (b) Briefly explain why the cosine of the angle between two unit vectors is simply their dot product. (c) Use the observation in (b) to find the angle between a and b. This is the same angle between the bonds of the methane molecule CH4 (d) Use the internet to confirm the angle between bonds of the methane molecule. What web site did you use? 26 Show that d(a,b) equals this 3 (e) It turns out that each edge of the tetrahedron has length number. (See the Definition at the bottom of page 23.) Section 2.1 1. p. 63 #12 (give a vector and a parametric form) 2. p. 63 #14 (give a vector and a parametric form) 3. Solve the system below by back substitution 2.x+3y-z0 5y 4z 22 2z 16 4. p. 63 # 28 5. p. 63 #30 6. p. 63 #34 (Use row reduction) 7. p. 63 #36 (Use any technique) 8. Determine the solution set of the linear system whose augmented matrix is given below. 3 2 2 1 2 -2 -1 -2| 3 1 4 9. Determine the solution set of the linear system whose augmented matrix is given below (such a system is called a homogeneous system). Is the nature of the solution set (no solution, unique solution, infinitely many solutions) the same as in #8? Explain your answer. 1 3 2 -1 1 2 1-20 Notifications Dashboard Calendar To Do Inbox

Q: 2/7 + -4/3

A: Given,

Q: (4) y=x +4 -5 -4 -3 6.

A: The given equation is: y=x+4

Q: 1/3+2/9

A: Given 1/3 + 2/9

Q: (1-2=) dr

A:

Q: 5 3 4 x-3 x-2 x-3'

A: Given that 5/(x-3)-3/(x-2)=4/(x-3) To solve for x

Q: -2- 4- 3 10

A:

Q: V81x6 V3x3

A: Given expression is:  81x63x3 =81x63x3=27x6-3

Q: 6/7-2/3

A: our objective is to find the difference.

Q: 8 in images

A: It is an important part of statistics . It is widely used .

Q: 目 +8 LI +T 现 +04 +C4 |F|E|F|| ||||4 4 4 2 2

A:

Q: graph shows the relationship between the volume of the dilated box and the scale factor. diusuon 5.…

A:

Q: 0 1 2 4 0 2 4 0 0 3 9 12

A:

Q: 2(3+d-1)

A: Solve the given expression  given expression is 2(3+d-1)

Q: 1/4 +5/4

A: Solution: The objective is to find the value of the given expression

Q: 3. Identify all the cycles at each node of the directed graph above.

A: Cycle is defined as a path that start and end at the same vertex.

Q: -2(5a)

A: To evaluate-2(5a)

Q: limx→- f(x) limo+ f(x) limx→ = = =

A:

Q: (24) Half the product of a number t and 48

A: The objective is to half the product of a number t and 48.

Q: 10. 3 + Зу- 1 + у

A: Given that                     3+3y-1+y Now we simplify this.                           3+3y-1+y…

Q: X5 y / x4 y6

A: Given: x5yx4y6

Q: 1) 6dx 3/3

A: ∫33361+x2dx=6∫33311+x2dx=6tan-1x333=6tan-13-tan-133=6tan-13-tan-113=6π3-π6=2π-π=π

Q: -5/9 + 1/2

A: The given expression is

Q: 8y3 + 216

A:

Q: -3 -2 -1 1 2 0000000 3.

A:

Q: /2 2. 1/2

A: (a12+b12)(2a12-3b12)=2a12a12+2a12b12-3a12b12-3b12b12=2a+2a12b12-3a12b12-3b=2a-a12b12-3b

Q: -4 -2- 4 8

A: We are asked to find the horizontal asymptote and vertical asymptote. Horizontal asymptote (HA) - It…

Q: 2/5 +7/12

A: Please see the answer below.

Q: -2 -4 and D = 4 8

A:

Q: Write 504,770,796 in expanded notation

A: We write 504,770,796 in expanded notation. The expanded notation is a way of writing numbers to see…

Q: the series

A:

Unitary Method

The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products. 

Speed, Time, and Distance

Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.

Profit and Loss

The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.

Units and Measurements

Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.