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3 years ago

Find the equation of the line.

Mathematics

1 answer:

NARA [144]3 years ago

5 0

Answer:

y=4x+9

hope this helps

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Question 8 Find the unit vector in the direction of (2,-3). Write your answer in component form. Do not approximate any numbers

slamgirl [31]

Answer:

The unit vector in component form is $\hat{u} = \left(\frac{2}{\sqrt{13} },-\frac{3}{\sqrt{13}} \right)$ or $\hat{u} = \frac{2}{\sqrt{13}}\,i-\frac{3}{13}\,j$ .

Step-by-step explanation:

Let be $\vec u = (2,-3)$ , its unit vector is determined by following expression:

$\hat {u} = \frac{\vec u}{\|\vec u \|}$

Where $\|\vec u \|$ is the norm of $\vec u$ , which is found by Pythagorean Theorem:

$\|\vec u\|=\sqrt{2^{2}+(-3)^{2}}$

$\|\vec u\| = \sqrt{13}$

Then, the unit vector is:

$\hat{u} = \frac{1}{\sqrt{13}} \cdot (2,-3)$

$\hat{u} = \left(\frac{2}{\sqrt{13} },-\frac{3}{\sqrt{13}} \right)$

The unit vector in component form is $\hat{u} = \left(\frac{2}{\sqrt{13} },-\frac{3}{\sqrt{13}} \right)$ or $\hat{u} = \frac{2}{\sqrt{13}}\,i-\frac{3}{13}\,j$ .

6 0

3 years ago

Marshall began making a grilled cheese sandwich at 6:13 P.M. The sandwich was ready at 6:24 P.M. How long did it take Marshall t

jasenka [17]

It took him 11 minutes.

3 0

3 years ago

Read 2 more answers

It costs $10 to get into the dance and snacks are $2 each. If you have $30 to spend, how many snacks can you buy?

Oliga [24]

Answer:

10 Because if u do 30-10=20 and then 20÷2= 10

3 0

3 years ago

Given f (x) = x^2 + 2x and g (x) = 3x + 6 , what is F (x) • g (x)

mamaluj [8]

Answer:

1. f(x)=2 2. g(x)7 14

Step-by-step explanation:

1. if you graph the points for f(x) then you get 2.

2. if you graph the points for g(x) then you get 7.

and there is your answer! hope this helps!

3 0

2 years ago

Please help me please will give brainliest to anyone who is good <br><br>show your work

lara [203]

Answer:

B - 1/9

Step-by-step explanation:

I don't really know how to explain how I got it because I'm only in middle school in pre-algebra, but I did teach this to myself online haha, so here we go. Daneille rolled the dice 90 times, it only landed on 6 10 times. That is 10/90 which, simplified, is 1/9.

7 0

3 years ago