Can you help? This is an AP Precalc problem

Can You Help? This Is An AP Precalc Problem

Answers

Answer 1

Notice that v points into the third quadrant since both of its components are negative. If you want a vector to point in the same direction, it would need to have the same sign on its components. So C is the correct choice.

The factor of 1/√80 comes from normalizing the vector v. Its norm/magnitude is

|v| = √((-4)² + (-8)²) = √(16 + 64) = √80

so the unit vector that points in the same direction as v is simply v / |v|.


Related Questions

Please help! Will give brainlist

Answers

Answer:

vertical

Step-by-step explanation:

bdvdhdvdhdvdhdhdvdhbdbdd

Answer:

adjacent

Step-by-step explanation:

Jo puts $4500 in a
savings account that
earns 5.5% interest. How
much money will he have
after 18 months?

Answers

Answer:

The total money Jo has after 18 months is $4871.25

Step-by-step explanation:

7th grade math again Imao sorry
but ik its a lot but plss

17: -15x +0
18: -17x= -204
19: 21= -7n
20: m/4 = -13
22: -143= 11x
23: -16 + x = --15
26: n-8=-10
27: v/7 =8
28: a+11=20
30: 18+m=8

Answers

Answer:

Down below

Step-by-step explanation:

17: -15x

18: 12

19: -3

20: -52

22: -13

23: 31

26: -2

27: 56

28: 9

30: -10

% 22 si 66 olan sayının % 30 u kaçtır?


lütfen kağıt üzerinde yapın :-)​

Answers

Answer is in the file below

tinyurl.com/wpazsebu

help please!! i have 54:40 left!

Answers

Answer:

4/7 (first one)

Step-by-step explanation:

6-(2)/(2)+5=4/7

hope this helps

Answer:

6-2/2+5=4/7

The answer is 4/7 (option A)

Translate the description as an algebraic expression:
the difference of 4 and the absolute value of m

Answers

Answer:

4 - | m |

(Absolute value of something is denoted by writing the value between two perpendicular lines.)

5. Two plumbing companies charge the rates shown in the table. Find
how long the plumbing companies would need to work for Pipeline's
charges to be greater than Down the Drain's.
Hourly Rate
Company
Pipeline
Fixed Charge for Visit
$25.00
$32.50
Down the Drain
$22.50
$50.00

Answers

$32.50
G gg yvybyxrcygijtswerving

solve for b
–1 + 2b − 9 = 10b − 10

Answers

Answer:

The answer is B= 0

I'm positive

What is the percent of change from 400,000 to 700,000?


Answers

Answer:

17.5

Step-by-step explanation:

Answer:

I see this is your first brainly question, I hope you are enjoying the website! Anyway, the answer is 75%

Step-by-step explanation:

I got my answer from https://getcalc.com/math-percent-change-400000to700000.htm I recommend this website, I hope you try it out and like it! Have a wonderful day and dont forget to smile :) <3

help please I'll give 6 points and brainliest​

Answers

Answer:

Radius - 25.4cm²

Circumstance- 159. 593cm²

Area - 2,026.83cm²

I think not sure

NEED HELP ASAP FREE BRAINLIST

Answers

Answer:

13.6

Step-by-step explanation:

[tex]a^2+b^2=c^2\\4^2+13^2=c^2\\16+169=c^2\\c^2=185\\\sqrt{c^2} =\sqrt{185} \\c=13.6[/tex]

CAN SOMEONE PLEASE HELP WITH THIS PROBLEM PLEASE!!!!

Answers

naw bruv i’m doing the same problems rn and i’m struggling gl tho

The supermarket has 28 aisles. 75% are empty, without any shoppers. How many empty aisles are there in the supermarket?

Answers

Answer:

21

28/75%=28

there ya go

Based on the data, how many of 650 ice cream eaters would be expected to prefer vanilla or cookie dough ice cream flavor Number of people vanilla 71 strawberry 22 cookie dough 27 chocolate 83

Answers

Answer: 305 people

Step-by-step explanation:

The total number of people sampled is:

= 71 + 22 + 27 + 83

= 209

Out of this 209, the number of people who prefer Vanilla and cookie dough ice cream is:

= 71 + 27

= 98 people

In a sample of 209 people, 98 people would prefer either vanilla or cookie dough. In 650 people, that number would therefore be:

= 98/ 209 * 650

= 305 people

Some students want to order shirts with their school logo, The Tees company charges $9.65 per shirt
plus a setup fee of $43. The Shirtz company charges $8.40 per shirt plus a $58 fee. Which company
would you recommend to the students?

Answers

This is the equations,
Tee Company: 9.65x + 43
Shirtz Company: 8.40x + 58
If you were to buy one shirt from each company these would be the prices,
Tee Company: $52.65
Shirtz Company: $66.40
I would recommend the Tee Company since the price per shirt is cheaper.

Tjtkjggj plz help
Ckdkdfkkf​

Answers

Answer:

x=5

Step-by-step explanation:

3x-1.5=13.5

+1.5 +1.5

3x=15

÷3 ÷3

x=5

3. Which best describes parallel lines?
a) two lines that originate from the
same point
b) two lines that intersect at multiple
points
c) two lines that curve to form a circle
d) two lines that are always equidistant

Answers

Answer:

its A

Step-by-step explanation:

its A because parallel are two straight lines next to each other

The answer is A have a good day

What is the volume of this rectangular prism?
3 cm
DI
cm
1
cm
2
Y

Answers

Answer:

3/4 cm^3

Step-by-step explanation:

Volume = base area * height. Where base area is 1/2*1/2 (As it is a square) and height = 3 cm, so times together get 3/4.

Step-by-step explanation:

multiply them all

V=h×l×w

V=½cm × 3cm × ½cm

V=¾cm³

3. For each equation, determine if x=2 is a solution. Explain or show your reasoning. Select ALL of those where the x can equal 2. 2 points -2(x - 4) = 4 26/x = 13 - 3.8x = -7.4 4(x - 1) - 3(x - 2) = -8

Answers

Answer:

26/x = 13

x = 2

Step-by-step explanation:

2(x - 4) = 4

2x - 8 = 4

2x = 4 + 8

2x = 12

x = 12/2

x = 6

26/x = 13

Cross product

26 = x * 13

26 = 13x

x = 26/13

x = 2

- 3.8x = -7.4

x = -7.4 / -3.8

x = 1.95

4(x - 1) - 3(x - 2) = -8

4x - 4 - 3x + 6 = -8

x + 2 = -8

x = -8 - 2

x = -10

4x - 1 = -13 show the work please

Answers

Answer:

x = -3

Step-by-step explanation:

4x - 1 = -13

add 1 to each side

4x = -12

x = -3

Answer:

x = -3

Step-by-step explanation:

Add 1 to both sides to, this gives you 4x = -12. then divide both sides by 4, which would give you x = -3.

Help me with this!!!

Answers

Answer:

z = 9

Step-by-step explanation:

JH is a perpendicular bisector of Δ IJK.

Thus the triangle is isosceles with

JK = JI , that is

7z = z + 54 ( subtract z from both sides )

6z = 54 ( divide both sides by 6 )

z = 9

A square has a perimeter of 76 cm. Each side measures x + 3.
What is the value of x, in centimeters?

Answers

A square has all equal sides, so 76/4 is 19.
19=x+3
Subtract the three from both sides
16=x
Or
X= 16 cm

The value of given x is 16

Given that:

Perimeter of square = 76 cm

Side of square = (x + 3)

Find:

The value of x

Computation:

Perimeter of square = 4[Side]

76 = 4[x + 3]

76 = 4x + 12

4x = 76 - 12

4x = 64

x = 64 / 4

x = 16

The value of x = 16

Learn more:

https://brainly.com/question/5602071?referrer=searchResults

F is directly proportional to A. if F=72 when A=9 find F when A=7

Answers

56 is your answer.

Equation for direct proportion is y = kx where k is the constant of proportionality. For your letters, it’s f = ka

We know 72 =k9, so k = 8
Then they want you to solve
f = 8•7
f = 56

**
pls help .
What shape(s) have opposite angles that are
congruent? ** You may have more the one
correct answer!
Rhombus
Square
Rectangle
Trapezoid
Kite

Answers

Answer:

Step-by-step explanation:

A parallelogram also has the following properties:

Opposite angles are congruent;

Opposite sides are congruent;

Adjacent angles are supplementary;

The diagonals bisect each other.

(20 points) How can a solution to a system of linear equations be determined exactly by graphing?
Please help, i have to have this answered soon and im freaking out.

Answers

Answer:

Free oints

Step-by-step explanation:

Last year Stevie was 281/4 inches tall. Since then he has grown 51/5
inches. How tall is Stevie now? Simplify your answer.
T

Answers

Answer:

80.45 inches

Step-by-step explanation:

Last year Stevie was 281/4 inches tall, which is: 70.25 inches (70 1/4)

He has grown 51/5 inches which is: 10.2 inches (10 1/5)

70.25 inches (last years height) + 10.2 inches (how many he has grown) = 80.45 inches

Stevie is 80.45 inches tall now.

Hopefully this helps :3 sorry if wrong :( Plz mark brainiest if correct :D Your bootiful/handsome! Have a great day luv <3

-Bee~

pls pls pls help with all these three asap! NO WRONG ANSWERS PLS!

Answers

Answer:

In 2014, the population is of the United States was about 318,900,000 people. Choose the best approximation of the United States Population in 2014.

people

people

Answer:

people

Step-by-step explanation:

Given

US Population in 2014: About 318,900,000

Required

Approximate

From the given options, it's seen that the population of US is to be approximated to one significant digit and the result should be presented in standard form

So, the first step is to write out the population

318,900,000

As a general rule,

Category 1: Digit 0-4 are approximated to 0

Category 2: Digit 5-9 are approximated to 1

Since, we are approximating to one significant digit, only the first digit is needed, others are to be approximated.

The first digit is 3, meaning that approximation starts from the next digit which is 1

Approximating 318,900,000 will give 300,000,000 because "1" falls in category 1 as illustrated above.

The final step is to convert 300,000,000 to standard form.

There are 8 0s after 3.

Hence,

Conclusively, the approximation of 318,900,000 is  people

Step-by-step explanation:

please help asap i need to finish i will mark brainlest ily

Answers

Answer:

I think it would be 1/3 as 20+40=60 and 20 is 1/3 of what

Answer:

20\40= 0.5 is 1\2

Mila buys a two liter soda bottle. She accidentally drops the soda bottle and spills 287 milliliters of soda. How much soda is left?

Answers

Answer:

1713 milliliters

Step-by-step explanation:

1 liter is 1000 milliliters, so 2 liters is equal to 2000 milliliters.

2000 mL - 287 mL = 1713 mL

So 1713 mL are left.

Any smart people know this i’m not smart

Answers

Answer:

-8n² - 8n + 3

Step-by-step explanation:

Combine like terms (terms with the same variables, as well as the same amount of that variable).

(4n⁴ - 8n + 4) - (8n² + 4n⁴ + 1)

First, distribute the negative sign to all terms within the second parenthesis:

4n⁴ - 8n + 4 - 8n² - 4n⁴ - 1

Combine like terms:

(4n⁴ - 4n⁴) - 8n² - 8n + (4 - 1)

-8n² - 8n + 3

-8n² - 8n + 3 is your answer.

Answer:

Option 3

Step-by-step explanation:



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