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2 years ago

How would you solve the equation -13=-5║n║

Mathematics

1 answer:

miss Akunina [59]2 years ago

8 0

Answer:

-13/5

Step-by-step explanation:

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Given two vectors A=2i+3j+4k,B=i-2j+3k find the magnitude and direction of sum (physics question)

Law Incorporation [45]

Answer:

$Magnitude =\sqrt{59} \\\\Direction \: of \: \overrightarrow{A + B} = \frac{3}{\sqrt {59}} , \:\frac{1}{\sqrt {59}} , \:\frac{7}{\sqrt {59}}$

Step-by-step explanation:

A=2i+3j+4k

B=i-2j+3k

Sum of the vectors:

A + B = 2i+3j+4k + i-2j+3k = 3i + j + 7k

$Magnitude =\sqrt{3^2 + 1^2+ 7^2} \\\\Magnitude =\sqrt{9+1+49} \\\\Magnitude =\sqrt{59}$

Direction of the sum of the vectors:

$\widehat{A + B} =\frac{\overrightarrow{A + B}}{Magnitude\: of \:\overrightarrow{A + B}} \\\\\widehat{A + B} =\frac{3i + j + 7k}{\sqrt {59}} \\\\\widehat{A + B} =\frac{3}{\sqrt {59}} i +\frac{1}{\sqrt {59}} j+\frac{7}{\sqrt {59}} k\\\\Direction \: of \: \overrightarrow{A + B} = \frac{3}{\sqrt {59}} , \:\frac{1}{\sqrt {59}} , \:\frac{7}{\sqrt {59}} \\\\$

3 0

3 years ago

What is the solution to the system of linear equations?

Natalija [7]

Answer:

The solution to a system of linear equations is the point at which the lines representing the linear equations intersect. Two lines in the x y xy xy -plane can intersect once, never intersect, or completely overlap.

Step-by-step explanation:

8 0

3 years ago

What fraction is larger 7/8 or 14/16

Bas_tet [7]

7*2=14 8*2=16 which is 14/16 so they are the same

3 0

3 years ago

Given the equation 25x^2y^2-40xy+16=0, find the value of xy.

Volgvan

Answer:

Not rlly sure, might be x=4/5y??? i dont know

4 0

2 years ago

Abby used 3 3/4 of drink mix to make 10 cups of drinks.

Fittoniya [83]

1) 3 x 4 = 12 + 3 = 15/10= 1.5

1.5/4 = 3/8 drink mix for one drink

2) 22/8

22/3=7.3

so 7 cups of drinks

6 0

4 years ago

Read 2 more answers