1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alekssandra [29.7K]
3 years ago
11

Please help!!!

Mathematics
1 answer:
Dmitry [639]3 years ago
5 0
The answer I believe is a
You might be interested in
Consider u = ⟨5, –2⟩ and v = ⟨10, –4⟩. what is the relationship between u and v?
Nadusha1986 [10]

Answer:

v = 2u

Step-by-step explanation:

note that

2u = 2 (5, - 2 ) ← multiply each component by 2

    = (10, - 4) = v , then

v = 2u

8 0
2 years ago
1st. (2 root 2 + root 3 ) ( 2 root 3 - root 2)
satela [25.4K]

Answer:

1st: 3*root6 + 5

2nd: 35*root2 + 115

3rd: 24*root2 - 20*root6 + 15*root3 - 18

4th: 17*root6 - 38

5th: 13*root10 - 42

Step-by-step explanation:

To simplify these expressions we need to use the distributive property:

(a + b) * (c + d) = ac + ad + bc + bd

So simplifying each expression, we have:

1st.

(2 root 2 + root 3 ) ( 2 root 3 - root 2)

= 4*root6 - 2*2 + 2*3 - root6

= 3*root6 - 4 + 9

= 3*root6 + 5

2nd.

(root 5 + 2 root 10) (3 root 5 + root 10)

= 3 * 5 + root50 + 6*root50 + 2*10

= 15 + 5*root2 + 30*root2 + 100

= 35*root2 + 115

3rd.

(4 root 6 - 3 root 3) (2 root 3 - 5)

= 8*root18 - 20*root6 - 6*3 + 15root3

= 24*root2 - 20*root6 + 15*root3 - 18

4rd.

(6 root 3 - 5 root 2 ) (2 root 2 - root 3)

= 12*root6 - 6*3 - 10*2 + 5*root6

= 17*root6 - 18 - 20

= 17*root6 - 38

5th.

(root 10 - 3 ) ( 4 - 3 root 10)

= 4*root10 - 3*10 - 12 + 9*root10

= 13*root10 - 30 - 12

= 13*root10 - 42

8 0
3 years ago
A marina is in the shape of a coordinate grid. Boat A is docked at (3.1, −1) and Boat B is docked at (−4.1, −1). The boats are _
Amiraneli [1.4K]

Answer:

b

Step-by-step explanation:

[3,1-(-4,1),-1-(-1)]

(3,1+4,1 , 0)

x=7, 2

y=0

7 0
3 years ago
Solve for 1/3(x+2)=2/3x+4
Norma-Jean [14]

Answer:

Step-by-step explanation:

Let's solve your equation step-by-step.

1

3

(x+2)=

2

3

x+4

Answer:

x=−10

8 0
4 years ago
Use the cross product to find the sin(θ) where θ is the angle between v and w where v=i+j and w=i+j+k.
romanna [79]
\|\mathbf v\times\mathbf w\|=\|\mathbf v\|\|\mathbf w\|\sin\theta

\mathbf v\times\mathbf w=\begin{vmatrix}\mathbf i&\mathbf j&\mathbf k\\1&1&0\\1&1&1\end{vmatrix}
\mathbf v\times\mathbf w=\begin{vmatrix}1&0\\1&1\end{vmatrix}\mathbf i-\begin{vmatrix}1&0\\1&1\end{vmatrix}\mathbf j+\begin{vmatrix}1&1\\1&1\end{vmatrix}\mathbf k

\mathbf v\times\mathbf w=\mathbf i-\mathbf j
\implies\|\mathbf v\times\mathbf w\|=\sqrt{1^2+(-1)^2}=\sqrt2

\mathbf v=\sqrt{1^2+1^2}=\sqrt2
\mathbf w=\sqrt{1^2+1^2+1^2}=\sqrt3

\sqrt 2=\sqrt2\cdot\sqrt3\sin\theta
\dfrac1{\sqrt3}=\sin\theta
4 0
3 years ago
Other questions:
  • Problem page a family has two cars. the first car has a fuel efficiency of 30 miles per gallon of gas and the second has a fuel
    7·1 answer
  • Which number is farther from 0 on a number line -9 or 6
    12·1 answer
  • A company is making building blocks what is the length of each side of the block?
    13·2 answers
  • Please help Ms.Perkins needs to order art supplies for the entire school she would like to get at least 8,000 peices of construc
    15·2 answers
  • What are the x intercepts of this equation?
    14·1 answer
  • Please answer this question and explain please trying to learn
    15·1 answer
  • A pizza box is 15 inches long, 10 inches wide, and 3 inches high. How much space is inside the box?
    15·1 answer
  • A regular hexagon is divided into 6 equilateral triangles. Each triangle has a side length of 4 cm and a height of 14cm. Find th
    5·1 answer
  • Evaluate the following expressions x=6
    7·1 answer
  • A carpenter is cutting a 15 1/4 foot piece of lumber into smaller pieces.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!