What is the x-intercept of the equation 3x

(3 + 8i) + (7 -- 2i) - (6 - 5i)<br> AO 4+1<br> B.O4 + 117<br> c. 16 +1<br> D.O4 + 1143

Lubov Fominskaja [6]

Answer: (3 + 8i) + (7 -- 2i) - (6 - 5i) = 4 + 15i

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Simplify the expression.

4 + 15i

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3 0

2 years ago

A boat sails 285 miles south and then 132 miles west. What is the magnitude of the boats resultant vector?

Delicious77 [7]

The magnitude of the boats resultant vector is 314.1 mi

<h3>What is a vector?</h3>

A vector is a physical quantity that has both magnitude and direction.

<h3>What is a resultant vector?</h3>

A resultant vector is the sum of two or more vectors.

<h3>How to find the boats resultant vector?</h3>

Since the boat sails 285 miles south and then 132 miles west, we have that its first direction vector is r = (285 mi)j. Also, its direction vector west is r' = -(132 mi)i

So, the resultant vector R = r + r'

= (285 mi)j + (132 mi)i

= (132 mi)i + (285 mi)j

So, the magnitude of the resultant vector is R = √(r² + r'²)

So, substituting thevalues of the variables into the equation, we have

R = √(r² + r'²)

R = √((285 mi)² + (132 mi)²)

R = √(81225 mi² + 17424 mi²)

R = √(98649 mi²)

R = 314.08 mi

R ≅ 314.1 mi

So, the resultant vector is 314.1 mi

Learn more about magnitude of resultant vector here:

brainly.com/question/28047791

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8 0

1 year ago

If 78 sit-ups is done in 2 minutes how many can be done in 5 minutes

Oksanka [162]

Answer:

195

Step-by-step explanation:

78/2*5

4 0

3 years ago

Read 2 more answers

the value of the building owned by two veterinarians went from 125000 to 117500. What is the percent decrease

sergij07 [2.7K]

The decrease:
125000 - 117500 = 7500

Percentage of decrease = 7500/125000 x 100 = 6%

3 0

3 years ago

What value of m makes the equation true? m + 2m - 6 = -12 + 2m.

denpristay [2]

the answer is 6 i think

4 0

3 years ago

Read 2 more answers

What is the x-intercept of the equation 3x - 2y = -12 ​

What is the x-intercept of the equation 3x - 2y = -12