Find the magnitude and direction (in degrees) of the vector. v = ‹ - sqrt(7)/9, - sqrt(2)/3 ›

Answers

Answer 1
The magnitude is given by:
 lvl = root ((- root (7) / 9) ^ 2 + (- root (2) / 3) ^ 2)
 lvl = 0.555555556
 The address is given by:
 cos (theta) = (- root (7) / 9) / (0.555555556)
 Clearing theta:
 theta = acos ((- root (7) / 9) / (0.555555556))
 theta = 121.95 degrees
 Answer:
 
The magnitude and direction (in degrees) of the vector are:
 
lvl = 0.555555556
 
theta = 121.95 degrees

Related Questions

The month of the year is December. What is the type of data is December?


discrete data


categorical data


continuous data

Answers

December is categorical data. Hope this helps, if you have any questions please feel free to message me;)

Data that is collected can be either categorical or numerical data.Categorical variables represent types of data which may be divided into groups.

December is the twelfth and last month of the year .The word December is a  categorical discrete data which is also known as qualitative, because it is a name instead of a number.Among the options given December is a month of a year.

The month of the year is December is a categorical data .

What is the range of the function (e^x)/(e^x)+c? Assume that c is a constant greater than zero.

Answers

Try this explanation:
1. if to re-write the given function as:
[tex]y= \frac{e^x}{e^x+C}; \ \ \textless \ =\ \textgreater \ \ y=1- \frac{C}{e^x+C};[/tex]
then it is possible to define its range:
2)   
[tex] \lim_{x \to+ \infty}[1- \frac{C}{e^x+C}]=1; \\ \lim_{x \to- \infty}[1- \frac{C}{e^x+C}]=0[/tex]

answer: (0;1)
Final answer:

The range of the function (eˣ)/(eˣ+c) is the closed interval [0,1].

Explanation:

The range of the function f(x) = (eˣ)/(eˣ+c) can be determined by analyzing the behavior of the function as x approaches positive and negative infinity. When x tends to positive infinity, the term eˣ grows much faster than c, so the denominator approaches infinity. Therefore, the function approaches 1 as x tends to infinity.

Similarly, when x tends to negative infinity, the term eˣ approaches 0 much faster than c, so the denominator becomes negligible. As a result, the function approaches 0 when x tends to negative infinity.

Since the function approaches 0 at negative infinity and approaches 1 at positive infinity, the range of the function is the closed interval [0,1].

3 - 2x = 9 - 8x

x = ?

Answers

x = 1

3-2 = 1x 
9-8 = 1x

1x = 1x 

Hope this Helps!!
I think that the answer is 10x correct me if i am wrong about it

Alex needed proceeds of $12,345. How much does he need to take out at 6% interest for 120 days to receive proceeds of $12,345? please help me with https://brainly.com/question/10042149 too!

Answers

Assuming the interest due is deducted from the amount borrowed, Alex will walk away with (6%)*(120/360) = 2% less money than he borrows. That is ...
  $12,345 = (1.00 -2%)*(amount borrowed)
  $12,345/0.98 = (amount borrowed) = $12,596.94

What is the similarity ratio of the smaller to the larger similar cones? Enter your answer as a:b

Answers

the ratio will be 9:25

To find similarity ratio a:b

We take the sides and make a proportion

[tex]\frac{height \ of \ smaller \ cone}{height \ of \ larger \ cone} = \frac{radius \ of \ smaller \ cone}{radius \ of \ larger \ cone}[/tex]

[tex]\frac{9}{15} = \frac{6}{10}[/tex]

[tex]\frac{3}{5} = \frac{3}{5}[/tex]

So the ratio a:b is 3:5


Which of the following is equivalent to -6
A) 9-(-17)
B) 3*(-2)*(-1)
C) -2(4-1)
D) 4-16/-2

Answers

C.
-2(4-1)
Distributing: (-8 +2) = -6
C
-2(4-1) put in a calculator that’s your answer

If it takes eight men ten hours to build a wall, how long would it take four men?

Answers

If it takes eight men ten hours, it would take seven men nine hours, six men eight hours, five men seven hours and that brings us to the answer you need. It would take four men six hours.

Answer:

Step-by-step explanation:

No time because the wall is already built

In an isosceles trapezoid the length of a diagonal is 25 cm and the length of an altitude is 15 cm. Find the area of the trapezoid.

Answers



area=median*height=20cm*15cm 
=300cm^2 

Answer:

300

Step-by-step explanation:

Mara ran 3km north ad then 4km east. she will finish her run by running directly home. What is the total distance of her run

Answers

So we need to find the length of the hypotenuse of a right triangle with sides of 3 and 4, then add So we need to find the length of the hypotenuse of a right triangle with sides of 3 and 4, then add that distance to 3 and 4.
By the Pythagorean Theorme, the hypotenuse squared is equal to the sum of the sides squared...
d^2=3^2+4^2
d^2=9+16
d^2=25
d=√25
d=5
So the total distance of her run is 5+4+3=12 km

You can solve this with the Pythagorean theorem.
[tex] {3}^{2} + {4 }^{2} = {c}^{2} [/tex]
9+16=25, and the square root of 25 is 5. This is your answer.

Triangle ABC has angles measuring 137°, 15°, and 28°. Classify the triangle by its angle measures.

Answers

Scalene and obtuse.
scalene and a obtuse triangle 

the ratio of cats to dogs is 3 to 5. If there are 45 dogs, how many cats are there?



Answers

there are 27 cats if there are 45 dogs

Find up to isomorphism all abelian groups of order 48 72 84 g

Answers

this is the answer

48, 72 84 is the right order that this go in 

Find the probability of each outcome if you randomly choose a letter in the worrd probability

Answers

There are 11 letters in the word "probability." The probability you choose any letter is how many times it appears in the word divided by 11:

p = 1/11
r = 1/11
o = 1/11
b=2/11
a = 1/11
i = 2/11
l = 1/11
t = 1/11
y = 1/11

Justin collected data from his classmates on the type of condiment they prefer on their sandwich. Based on the data collected, if one hundred boys and one hundred girls are given a sandwich of their choice which statement is true?

9)
Boy Girl
Mayonnaise 12 14
Mustard 18 13
Plain 5 15

Answers

more boys than girls will choose mayonnaise over mustard and plain 

Answer:

The answer is C

Step-by-step explanation:

Boy likes mayonnaise:  

12

(12 + 18 + 5)

=  

12 /35

= 0.3429 ≈ 34%

Girl likes mayonnaise:  

14

(14 + 13 + 15)

=  

14 /42

= 0.3333 ≈ 33%

thus,

boys (34 of 100) > girls (33 of 100)

What is a ray? For math...

Answers

Ray is a part of a line that has an endpoint and goes on an on in one direction.
A ray is a part of a line.  One direction is continuing forever while the other has stopped (endpoint).  

In how many ways can we seat 6 people around a round table if Fred and Gwen insist on sitting opposite each other? (Two seatings are considered equivalent if one is a rotation of the other.)

Answers

i think 8  differnt ways

Sarah is taking ACCUPLACER. In which section will she find the following question? What is the value of the expression 3x2 + 6xy + 5y2 when x = 1 and y = 6?

Answers

It will be in the College Level Math section of that test suite.

Arithmetic is the answer

Which of the following is equal to the rational expression when x ≠ 5 or -1?
 [tex] \frac{(x-7)(x+1)}{(x+1)(x-5)} [/tex]

a. [tex] \frac{x+1}{x-7} [/tex]
b. [tex] \frac{x+1}{x-5} [/tex]
c. [tex] \frac{x-7}{x+1} [/tex]
d. [tex] \frac{x-7}{x-5} [/tex]

Answers

When x ≠ 5 and x ≠ -1, the expression can be simplified by cancelling the common factor in the numerator and denominator, namely (x+1) to leave us with (x-7) / (x-5), for which there is only one valid choice out of the four.

Answer:

[tex]\frac{(x-7)}{(x-5)}[/tex]

option D is correct

Step-by-step explanation:

[tex]\frac{(x-7)(x+1)}{(x+1)(x-5)}[/tex]

In an rational expression , if we have same factors at the top and bottom  then we cancel it out

In our given rational expression we have x+1  at the top and  bottom

so we cancel out x+1

After cancelling out x+1, we are left with

[tex]\frac{(x-7)}{(x-5)}[/tex]

option D is correct



What is the area of triangle LMN

Answers

Area of triangle = 1/2 x base x height

Area of the triangle = 1/2 x 4 x 6 = 12 square units

Answer: 12 square units

Answer:

A. 12 square units.

Step-by-step explanation:

We have been given graph of a triangle and we are asked to find the area of our given triangle.

Since we know that area of a triangle is half the product of height of triangle and base of the triangle.

[tex]\text{Area of triangle}=\frac{1}{2}*\text{Base*Height}[/tex]

We can see that MN is base of our triangle and LM is height of triangle, so let us find lengths of MN and LM using distance formula.

[tex]\text{Distance}=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

[tex]\text{Distance between point M and N}=\sqrt{(3--1)^2+(-4--4)^2}[/tex]

[tex]\text{Distance between point M and N}=\sqrt{(3+1)^2+(-4+4)^2}[/tex]

[tex]\text{Distance between point M and N}=\sqrt{(4)^2+(0)^2}[/tex]

[tex]\text{Distance between point M and N}=4[/tex]

[tex]\text{Distance between point L and M}=\sqrt{(-1--1)^2+(-4-2)^2}[/tex]  

[tex]\text{Distance between point L and M}=\sqrt{(-1+1)^2+(-6)^2}[/tex]  

[tex]\text{Distance between point L and M}=\sqrt{0+36}[/tex]  

[tex]\text{Distance between point L and M}=6[/tex]  

Now let us substitute our side lengths is area formula.

[tex]\text{Area of triangle LMN}=\frac{1}{2}*4*6[/tex]

[tex]\text{Area of triangle LMN}=2*6[/tex]

[tex]\text{Area of triangle LMN}=12[/tex]

Therefore, area of triangle LMN is 12 square units and option A is the correct choice.

in the linear equation, y = 7x - 15, the y- intercept of the line is

Answers

y-intercept: (0,-15)
The y-intercept in that equation is (0,-15). In slope-intercept form, the y-intercept is represented by the final number in the equation.

Below is the table of values of a function. Write the output when the input is
n


input 1 4 9 n

output 5 8 13 ?

What is the last output ?

Answers

The function is arithmetic where output = input +4
 

Input:       1             4                  9               9 + 7
Output:  1+4        4+4              9+4            9+7+4
Output:    5              8                  13            20

Last output is 20

Answer:

n + 4

Or 20

Step-by-step explanation:

Depends on how you see it the answer could be n´+4 since that´s how the function is working, and almost all of the time the independent clauses are actually independent and do not follow any progression.

But if there is a progression in the input, we can see that they are adding up uneven numbers to the input, so first we added 3, then we added 5, and last we should add 7: so the input would be 7+9= 16, the input in the forth spot should be 17, and the output should be 20.

the equation d=1/2n (n-3) gives the number of diagonals D for polygon with n sides. use this equation to find the number of sides n for a polygon that has 65 diagonals

Answers

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

 1. You have that:

 - The equation d=1/2(n(n-3)) gives the number of diagonals for the polygon.

 - The polygon that has 65 diagonals..

 2. When you clear n, you obtain:

 d=n(n-3)/2
 d=(n^2-3n)/2
 2x65=n^2-3n
 n^2-3n-130=0
 
 3. When you solve the quadratic equation, you obtain:

 n=13

 Therefore, the answer is: 13 sides.  

Answer:  13

Step-by-step explanation:

Given : The equation [tex]d=\dfrac{1}{2}n(n-3)[/tex] gives the number of diagonals d for polygon with n sides.

To find the number of sides n for a polygon that has 65 diagonals, we substitute the value of d= 65 in the given equation, we get

[tex]65=\dfrac{1}{2}n(n-3)[/tex]

Multiply 2 on both sides , we get

[tex]n(n-3)=130\\\\\Rightarrow\ n^2-3n-130=0\\\\\Rightarrow\ n^2-13n+10n-130=0\\\\\Rightarrow\ n(n-13)+10(n-13)=0\\\\\Rightarrow\ (n-13)(n+10)=0\\\\\Rightarrow\ n= -10\ or\ n= 13[/tex]

But number of sides cannot be negative, so the number of sides n for a polygon that has 65 diagonals = 13

look across each row and down each column what pattern do you see

Answers

isn't it just going up by one

Simplify the given polynomial expressions, and determine the degree and number of terms in each expression.

Answers

1)
[tex]6 { x}^{3} - 10 {x}^{2} + 4x[/tex]
Degree: 3
Terms:3

2)
[tex] - {x}^{5} - 3 {x}^{4} + 12 {x}^{3} - 6[/tex]
degree:5
terms:4

3) 9x^4-9
degree:4
terms:2

Degree and number of terms in each polynomial expression are as follow,

[tex]6x^{3} -10x^{2} +4x[/tex]         degree : [tex]3[/tex] and Number of terms : [tex]3[/tex][tex]-x^{5} -3x^{4} +12x^{3} -6[/tex] degree : [tex]5[/tex] and Number of terms : [tex]4[/tex][tex]9x^{4} -9[/tex]                       degree : [tex]4[/tex] and Number of terms : [tex]2[/tex]

What is expression?

" Expression is defined as the relation between two or more variables or numbers are represented using mathematical operation."

According to the question,

Given polynomial expression,

[tex]4x + 2x^{2} ( 3x-5)[/tex]  

Simplify the given expression we get,

[tex]4x + 6x^{3} -10x^{2}\\\\= 6x^{3} -10x^{2} +4x[/tex]

Degree of the polynomial expression : [tex]3[/tex]

Number of terms : [tex]3[/tex]

2. [tex](-3x^{4} +5x^{3} -12) + (7x^{3} -x^{5} +6)[/tex]

Simplify the given expression we get,

[tex]-3x^{4} +12x^{3} -6 -x^{5} \\\\= -x^{5} -3x^{4} +12x^{3} -6[/tex]

Degree of the polynomial expression : [tex]5[/tex]

Number of terms : [tex]4[/tex]

3. [tex](3x^{2} -3)(3x^{2} +3)[/tex]

Simplify the given expression we get,

[tex]9x^{4} -9[/tex]

Degree of the polynomial expression : [tex]4[/tex]

Number of terms : [tex]2[/tex]

Hence, degree and number of terms in each polynomial expression are as follow,

[tex]6x^{3} -10x^{2} +4x[/tex]         degree : [tex]3[/tex] and Number of terms : [tex]3[/tex][tex]-x^{5} -3x^{4} +12x^{3} -6[/tex] degree : [tex]5[/tex] and Number of terms : [tex]4[/tex][tex]9x^{4} -9[/tex]                       degree : [tex]4[/tex] and Number of terms : [tex]2[/tex]

Learn more about expression here

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The average July rainfall for charleston , south carolina, is 8.35 inches The average October rainfall is 3.87 inches on the average how many more inches of rain fell in july than in october?

Answers

To find this we need to subtract July rainfall (8.35) and Octobers rainfall (3.87) which equals 4.48.

Alexis please help stat

Answers

The answer is B.
19.82 > 19.803
19.82 is greater than 19.803 so it's a true statement.

a strip of wood 78 inches long is to be cut into pieces of 3 and 3/4 inches long how many pieces can be cut

Answers

namely, how many times does 3¾ go into 78?  well, is just their quotient.

let's firstly convert the mixed fraction to "improper", and then divide,

[tex]\bf \stackrel{mixed}{3\frac{3}{4}}\implies \cfrac{3\cdot 4+3}{4}\implies \stackrel{improper}{\cfrac{15}{4}}\\\\ -------------------------------\\\\ \cfrac{\quad 78 \quad }{\frac{15}{4}}\implies \cfrac{\quad \frac{78}{1} \quad }{\frac{15}{4}}\implies \cfrac{78}{1}\cdot \cfrac{4}{15}\implies \cfrac{26}{1}\cdot \cfrac{4}{5}\implies \cfrac{104}{5}\implies 20\frac{4}{5}[/tex]

so, if we nevermind the 4/5 part, only 20 whole of those then.

A person who needs a car for a few weeks while visiting family out of state would most likely choose which of the following?

Answers

A car rental is the correct answer on apex

A person needing a car for a few weeks while visiting family out of state would most likely choose A. Car rental for its short-term flexibility and convenience.

Car rental is the ideal choice for short-term car needs while visiting family out of state.

It offers flexibility in terms of duration, allowing individuals to rent vehicles for specific periods, such as a few weeks, without the commitment of ownership or long-term contracts.

With a wide range of vehicle options and rental locations available, car rental services provide convenience and accessibility.

Additionally, rental agreements typically include insurance coverage and roadside assistance, offering peace of mind to travelers during their stay.

Overall, car rental meets the temporary transportation needs of visitors efficiently and effectively.

Complete Question:

A person needing a car for a few weeks while visiting family out of state would most likely choose which of the following?

A. Car rental

B. Car share

C. Carpool

D. Car lease

kevin had 13 coins in his pocket. all of his coins are either dimes or quarters. when he emptied his pocket, kevin found that he had 2.05. how many dimes and quarters does he have?

Answers

5 quarters and 8 dimes would be the correct answer because

10x8=80
25x5=125
125+80=205

Mrs.Klein uses 12 cucumbers to make 3 jars of pickles. At this rate, how many cucumbers will she need to make 10 jars of pickles?

Answers

the answer to this question is 40 cucumbers

Answer:

40

Step-by-step explanation:

So she has 12 cucumbers to make 3 jars of pickles.

She uses 4 cucumbers to make each jar. (Based on the equation 12➗3 =4)

Shawtyyyy better be using those pickles on burgers and not eating it raw.

So she has 10 jars right? Right, and you know she used 4 pickles per jar, so

we can get the answer by the equation of 10 x 4 = 40

Have a great day shawtayyyyyy!

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