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2 years ago

Assume there are 365 days in a year. (40 points!!!) NEED HELP ASAP will mark brainlist

Mathematics

1 answer:

Zolol [24]2 years ago

8 0

check out brainly.com/question/7567074, same question, verified answer

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Let u= <4,3>. Find the unit vector in the direction of u, and write your answer in component form.

aksik [14]

Take the vector u = <ux, uy> = <4, 3>.

Find the magnitude of u:

||u|| = sqrt[ (ux)^2 + (uy)^2]

||u|| = sqrt[ 4^2 + 3^2 ]

||u|| = sqrt[ 16 + 9 ]

||u|| = sqrt[ 25 ]

||u|| = 5

To find the unit vector in the direction of u, and also with the same sign, just divide each coordinate of u by ||u||. So the vector you are looking for is

u/||u||

u * (1/||u||)

= <4, 3> * (1/5)

= <4/5, 3/5>

and there it is.

Writing it in component form:

= (4/5) * i + (3/5) * j

I hope this helps. =)

3 0

3 years ago

Two separate linear functions are expressed by the graph and by the equation. Select all that apply.

Andre45 [30]

Answer:

First option: The slope is negative for both functions.

Fourth option: The graph and the equation expressed are equivalent functions.

Step-by-step explanation:

<h3> The missing graph is attached.</h3><h3> </h3>

The equation of the line in Slope-Intercept form is:

$y=mx+b$

Where "m" is the slope and "b" is the y-intercept.

Given the equation:

$y=-4x-4$

We can identify that:

$m=-4\\b=-4$

Notice that the slope is negative.

We can observe in the graph that y-intercept of the other linear function is:

$b=-4$

Then, we can substitute this y-intercept and the coordinates of a point on that line, into $y=mx+b$ and solve for "m".

Choosing the point $(-2,4)$ , we get:

$4=m(-2)-4\\\\4+4=-2m\\\\m=-4$

Notice that the slope is negative.

Therefore, since the lines have the same slope and the same y-intercept, we can conclude that they are equivalent.

4 0

4 years ago

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Mariana rides her bicycle 5 miles per hour. Which graph represents this relationship?

statuscvo [17]

The answer would be graph B.

6 0

3 years ago

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Enter the values for the highlighted variables that show how to subtract the rational expressions correctly: StartFraction 2 Ove

alexira [117]

Answer:

6 2 6 2 6 6 1

Step-by-step explanation:

just did it on ed.

5 0

3 years ago

What value of x is the solution of the equation 1/7+2x/3 = 15x-3/21?

lana66690 [7]

1/7+2x/3=(15x-3)/21 make all terms have a common denominator of 21

3+14x=15x-3 subtract 3 from both sides

14x=15x-6 subtract 15x from both sides

-x=-6 divide both sides by -1

x=6

*Notice the use of parentheses in this format to make it clear what the numerators and denominators are...

7 0

3 years ago

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