Ask question

Ask question

All categories

3 years ago

15

Which relationships hold true for the sum of the magnitudes of vectors u and v, which are perpendicular

1 answer:

alexgriva [62]3 years ago

3 0

||u+v||=sq rt(||u||^2+||v||^2) ... Think of the pythagorean theorem

You might be interested in

Hokiris ladder has two legs that are each 8 feet long. When the ladder is opened safely and locked for use, the legs are 4 feet

guajiro [1.7K]

To solve this problem you must apply the proccedure shown below:

1- The ladder forms an isosceles triangle, because it has two equal sides.

2- Let's call the angle $\alpha$ . To calculate it , you can divide the triangle into two equal right triangles and the angle $\alpha$ will be divided into two equal parts too. Therefore, you can calculate the half of the angle and then multiply it by two, as following:

$Sin^{-1}(\alpha 1)=opposite/hypotenuse$

$Sin^{-1}(\alpha1)=8/2\\ \alpha1=14.47 degrees$

$\alpha =2\alpha 1\\ 2=2(14.47degrees)\\ \alpha =28.95degrees$

The answer is: $28.95degrees$

6 0

4 years ago

Find the missing values of the variables

hodyreva [135]

Answer:

What

Step-by-step explanation:

What is the missing variables

7 0

3 years ago

yo can someone please help me out. school is rlly stressful and i just need help. the question is “find the perimeter and area o

Bess [88]

These will be the answers

6 0

3 years ago

Need help,please and thank you

kramer

So a complementary angle is going to equal 90 degrees.

The equation is : x - 10 + 4x - 10 = 90

Then, add together the matching terms : 5x - 20 = 90

Add 20 to both sides : 5x = 110

Then divide both sides by 5 : x = 22

Insert the value 22 into the first equation : (22 - 10) + (4*22 - 10) = 90

Solve : 12 + 78 = 90

Angle UVW = 12 and angle XYZ = 78

8 0

3 years ago

What number will you get the same result if you multiply it by 3 and add 1, OR if you multiply it by 2 and add 8?

Helen [10]

Answer:

7

Step-by-step explanation:

3×7+1=22

2×7+8=22

6 0

3 years ago