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3 years ago

15

HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 14PTS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

!!!!!!!!!!!!!!!!!

1 answer:

maksim [4K]3 years ago

4 0

Answer:

a. d.

Step-by-step explanation:

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Help me with picture please 70 points.

timurjin [86]

Answer:

Plot the points on:

(1,2)

(3,6)

(5,12)

(9,18)

Thats it.

5 0

3 years ago

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

Cindy can type 65 words per minute. David can type 75 words per minute. In 7 minutes, how many more words can David type than Ci

DENIUS [597]

Answer:

70

Step-by-step explanation:

It's 70 because first you have multiply for Cindy's words 65×7=455 then multiple David's 75 word times 7 and you get 525. Lastly, You subtract both of their totals and get 70

Hope this helped!

6 0

3 years ago

Hello, I am stuck on how to solve the matrix problem of x - y = 5

Sergio [31]

If you’re trying to elimination the answer would be (14,9)

4 0

3 years ago

There are 487 students using a chromebook 448 students not using a chromebook.What is the probability that a student is Not usin

gtnhenbr [62]

Answer:

The answer is 92%

Step-by-step explanation:

448/487=.92

8 0

3 years ago

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