Let u = 2i + 3j, v = –i, and w = 5i – 6j. What is the magnitude of 2(u – v + w)?

10.0
13.4
17.1
21.6

Answers

Answer 1
2(u-v + w)

2u - 2v + 2w

(4i+3j) - (-2i) + (10i - 12j)

4i + 2i + 10i = 16i
3j - 0j -12j = -8j

16 - 8j

magnitude = √( 16²+(-8)² ) = 17.1
Answer 2

Answer:

C. 17.1

Step-by-step explanation:

edge


Related Questions

3/5 x ?/? = 3/5 plz im on a test!

Answers

Answer:

Dont say its a test youll get reported and banned by brainly

Step-by-step explanation: also the answer is:  3/5 x 3/5 = 925 = 0.36

Answer: 1/1

Step-by-step explanation:

1/1 because it = 1 so that means 3/5 x 1/1 is 3/5

Mitch has 2 cups of unpopped popcorn. He uses
1/4 cup to make 1 bowl of popcorn. How many bowls of
popcorn can he make?

Answers

8 bowls

2/(1/4)=8

Hope it helps

explain how you know plz


Answers

Answer:

this is a nonlinear function because the point do not have a steady rate of change for example y went up one and x went up 1 but from the next set of pairs y went up one and x went up three so this is a nonlinear function

Find the area of the figure. 8.5 cm 9.5 cm 24 cm The area of the figure is_______cm2

Answers

The answer is 432 cm^2.

Answer:

432 is the blank

Step-by-step explanation:

I just did this problem

if y=10 when x=5 what does y equals when x=0.2

Answers

Answer:

.4

Step-by-step explanation:

y=2x

y=2(.2)

y=.4

there is your answer

It would be 0.4 I think

1+1=???????????????????​

Answers

Answer:

I.d.k I think 1 :)

Step-by-step explanation:

have a great day

A 80-ounce bottle of apple juice contains 32 ounces of water. Which juice has the greater percent of water? What percent of the bottle of apple juice is water

Answers

Answer:

Only 1 juice is listed.....

So apple juice has the greatest percent of water

40%

Step-by-step explanation:

Answer:

40%

Step-by-step explanation:

Just did it on iready

CAN YOU ANSWE QUESTION 1 and 2 please??

Answers

Answer:

B. $700

Step-by-step explanation:

The answer is A because.....

Step 1: Find the 7% of 2000.

a.) 7% of 2000 is 140.

b.) Check- So: 140/2000= 0.07 (7%)

Step 2: Multiply 140x5 which equals $700.

Although, I can’t really see the second question‘s options, as the calculations made for the previous question, she paid $140 each year.

I rlly hope this is helpful! If so, please, please, please mark brainliest! Thanks! :)

Answer:

c

Step-by-step explanation:

There are five blue crayons, seven yellow crayons, and eight red crayons in a box. If one is randomly drawn and replaced 15 times, find the probability of drawing exactly four blue crayons.​

Answers

0.2252

(Please mark me brainliest! thank you in advance!!)

Help please due in 25 minutes !!!

Answers

Answer:

Option B is correct from question point of view..

which expression is equivalent to 8(5x-3)

13x-11
13x-24
40x11
40x-24

Answers

Answer:

The last answer option.

Find the surface area and volume of the prism​

Answers

Answer:

I only know the first one.

The surface area of the prism is 900 cm2

Step-by-step explanation:

To solve the surface area, we need to find the area of the SURFACE not the inside of the cube. Lets do the rectangles first.

28 x 13 = 364

28 x 5 = 140

28 x 12 = 336

   1 1

   336

+  140

   364

-------------

  8 4 0

Now lets do the triangles.

Remember! To find the area of a triangle, you have to do Base x Height x 1/2 because it's half a rectangle.

(The triangles have the same area)

12 x 5 x 1/2 = 30

12 x 5 x 1/2 = 30

  30

+ 30

--------

 60

The last step is to add the areas of the triangles and the rectangles.

   1

   840

+    60

------------

   900 cm2

The answer is 900cm2

This Is not copy pasted, I actually put in all this effort.

Hope this helps :) And have a wonderful day! :D

Which algebraic expression is a polynomial with a degree of 5?

3x5 + 8x4y2 – 9x3y3 – 6y5
2xy4 + 4x2y3 – 6x3y2 – 7x4
8y6 + y5 – 5xy3 + 7x2y2 – x3y – 6x4
–6xy5 + 5x2y3 – x3y2 + 2x2y3 – 3xy5

Answers

First one ..............

Write an equation from a real life situation


1. A membership at a yoga studio costs $35 per month, m. Write an equation to find the final cost, c?


2. After you wrote your equation, answer this question. Show your work.
" You attended the yoga studio for 20 months. What was the final cost?​

Answers

Answer:

1. C=35m?

2.C=700 or $700

Step-by-step explanation:

1. Total Cost= Rate x Number of Months

2. C=35m

Cost=rate x number of months

C=35(20)

C=700 or Total Cost=$700

Answer:

1. c = 35m

2. c = 35 · 20

20 · 35 = $700

Step-by-step explanation:

PLEASE HELP NO WRONG ANSWERS

Answers

Answer:

I believe it's C

Step-by-step explanation:

[tex]\\ \sf\longmapsto Area=30x^2-53x+12[/tex]

[tex]\\ \sf\longmapsto Area=30(3)^2-53(3)+12[/tex]

[tex]\\ \sf\longmapsto Area=30(9)-159+12[/tex]

[tex]\\ \sf\longmapsto Area=270-159+12[/tex]

[tex]\\ \sf\longmapsto Area=111+12[/tex]

[tex]\\ \sf\longmapsto Area=123[/tex]

And

[tex]\\ \sf\longmapsto Base=4x-6[/tex]

[tex]\\ \sf\longmapsto Base=4(3)-6[/tex]

[tex]\\ \sf\longmapsto Base=12-6=6[/tex]

Now

[tex]\\ \sf\longmapsto Area=\dfrac{1}{2}bh[/tex]

[tex]\\ \sf\longmapsto \dfrac{1}{2}6h=123[/tex]

[tex]\\ \sf\longmapsto 3h=123[/tex]

[tex]\\ \sf\longmapsto h=\dfrac{123}{3}[/tex]

[tex]\\ \sf\longmapsto h=41[/tex]

Jason launched a rocket for a physics experiment. This equation can be used to find
the height (h), in feet, of the rocket after t seconds.
h = -16t2 + 288t + 8
How many seconds will it take for the rocket to reach a height of 1,304 feet?

Answers

Answer:

5.063 seconds

Step-by-step explanation:

Use a graphing calculator to graph, then use the table functions to solve for 1304

or say

1304= rest of equations and solve for X

PLZZ help middle school math you just have to explain how to solve it. please don't put big words so I can understand and my teacher will think its me...lol​

Answers

Answer:

tell her you don't understand it and she'll help you ok good luck

Please verify the following trigonometric identities.

1. [tex]\frac{\tan x + \tan y}{\cot x + \cot y} = \tan x + \tan y[/tex]

2. [tex]\frac{\sin^3x + \cos^3x}{\sin x + \cos x} = 1 - \sin x \cos x[/tex]

3. [tex]\tan(\frac{x}{2}) + \cos x \tan(\frac{x}{2}) = \sin x[/tex]

Answers

Seems like there is a correction in the first question (RHS is tanx.tany)

(i) For convenience: let tanx = a ; tany = b

Thus, tanx + tany = a + b

Moreover, cotx = 1/tanx = 1/a ; coty = 1/b

Thus,

cotx + coty = 1/a + 1/b = (a + b)/ab

Hence,

=> (tanx + tany)/(cotx + coty)

=> (a + b) / { (a + b)/ab }

=> ab(a + b)/(a + b)

=> ab => tanx.tany , proved.

(ii) For convenience: let sinx = a ; cosx = b

As we know, sin²x + cos²x = 1 => a²+b²=1

=> (a³ + b³)/(a + b)

=> (a + b)(a² + b² - ab) / (a + b)

=> (a² + b² - ab)

=> 1 - ab => 1 - sinx.cosx , proved

(iii): let x/2 = A

=> tan(x/2) + cosx.tan(x/2)

=> tanA + cos2A.tanA

=> tanA [1 + cos2A]

=> tanA (2cos²A) {1+cos2A = 2cos²A}

=> (sinA/cosA) (2cos²A)

=> sinA (2cosA)

=> 2sinAcosA

=> sin2A

=> sin2(x/2)

=> sinx proved

Letting x/2 = A is not mandatory. I did it to decease words*(in a line).

Indentities used:

• sin²A + cos²A = 1

• (a³ + b³) = (a + b)(a² + b² - 1)

• 1 + cosA = 2 cos²(A/2)

• tanA = sinA/cosA.

• 2sinAcosA = sin2A

What number should
be added to both sides of the equation to complete the square?
x2 + 8x = 4
4
8
16
O 32

Answers

I believe it is 4 to make it able to divide by both sides

Determine the domain and range of each graph. Use inequalities to write your answer.​

Answers

Answer: Domain is [3,∞), The range is All real numbers.

Step-by-step explanation:

Asim mixed 5 gallons of paint.

Which of the following can be used to

find the number of pints of paint that

Is Asim mixed?

a.5 × 4 × 2

b. 5 × 4 , 2

c.5 × 2 × 2

d.5 , 2 × 2

is it a.b.c.d?

Answers

Answer:

5 × 4 × 2

Step-by-step explanation:

5 gallons

4 quarts per gallon

2 pints per quart

if sinθ = A, find cos(π/2-θ)

(using trigonometric identities to fine the value)

Answers

Answer:

Cos(π/2 - θ) = A

Step-by-step explanation:

We know that:

Sin(θ) = A

And we want to find the value of Cos(π/2 - θ)

Here we can use the cosine relationship:

Cos(a - b) = Cos(a)*Cos(b) + Sin(A)*Sin(B)

Then:

Cos(π/2 - θ) = Cos(π/2)*Cos(θ ) + Sin(π/2)*Sin(θ)

We know that:

Cos(π/2) = 0

Sin(π/2) = 1

Then:

Cos(π/2 - θ) = Cos(π/2)*Cos(θ ) + Sin(π/2)*Sin(θ) = 0*Cos(θ ) + 1*Sin(θ)

                    = 1*Sin(θ) = A

Cos(π/2 - θ) = A

Simplify 3^2 ⋅ 3^5
^ = are exponents
A 3^7

b
3^10

c
9^7

d
9^10

Answers

Answer:

B

Step-by-step explanation:

when simplifying base stays the same we only deal with exponent I think I need help too

знайдіть розв'язок системи лінійних рівнянь 10x-6y = 18 9x+6y=39

Answers

Answer:

(-21, -38)

Step-by-step explanation:

Given the simultaneous equation

10x-6y = 18 ... 1

9x+6y=39 ...2

Using the Elimination method

Subtract

10x - 9x = 18 - 39

x = -21

substitute x = -21 into 1;

From 1:

10x-6y = 18

10(-21)-6y = 18

-210 - 6y = 18

-6y = 18+210

-6y = 228

y = 228/-6

y =-38

Hence the solution to the system is (-21, -38)

Angle AOC has the measure of 87°, determine the measure of the angle in radians.

Answers

Answer:

1.518 radians is the answer.

Step-by-step explanation:

Degree to radian conversion = 1° × [tex]\frac{\pi }{180}[/tex]

87° × [tex]\frac{\pi }{180}[/tex]

1.518 radians

A physical examination was used to screen for breast cancer in 7600 women with biopsy proven adenocarcinoma of the breast and in 11,000 age and race matched control women. The results of the physical examination were positive (i.e. a mass was palpated) in 5,500 cases and 1,700 control women (who showed no evidence of cancer at biopsy). The total population is 18,600. The sensitivity of the physical examination was:______.

Answers

Answer:

72.37%

Step-by-step explanation:

Calculation for what The sensitivity of the physical examination was

Using this formula

Sensitivity=Positive physical examination cases/Physical examination screening for breast cancer

Let plug in the formula

Sensitivity=5,500 cases / 7600 women

Sensitivity=0.7237*100

Sensitivity=72.37%

Therefore The sensitivity of the physical examination was 72.37%

Answer:

72.37% is the answer for this

2. Three pairs of jeans and six shirts cost $104.25. The cost of 4 pairs of jeans and 5 shirts
is $112.15. Find the cost of each pair of jeans and each shirt.

Answers

Answer:jeans = x = 16.85

shirts = y = 8.95

Step-by-step explanation:

That’s the answer bud

Assessment timer and count
Assessment items
Item 1

A scientist studied the replication of bacteria in a lab environment. This table gives the bacteria count for the first 12 hours. The table can be modeled using an exponential function.

Hours 2 4 6 8 10 12
Bacteria count 1,240 5,100 20,990 86,520 365,520 1,469,170

What function best represents the data?

y=300+4x
y=1240⋅2.03x
y=4x
y=300⋅2.03x

Answers

Answer: y=300⋅2.03x

Step-by-step explanation:

Answer:

D.) y = 300 ⋅ 2.03x

Step-by-step explanation:

By using the plug-in method, you use "Hours" as the X in this question.

If you plug in 2, 4, 6, 8, 10, and 12 to y = 300 ⋅ 2.03x, you will get the closest answers to "Bateria Count"

1,236.27 = 300 ⋅ 2.03^2
5,094.54= 300 ⋅ 2.03^4
2,0994.11 = 300 ⋅ 2.03^6
86,514.63 = 300 ⋅ 2.03^8
and so on- all are the closest to the chart.

Hope this helped! :)

HELP PLEASE DUE IN 3 MINUTES

Answers

Answer:

the last answer... i hope this helps

Step-by-step explanation:

Answer:

Twice as many students had 3 brothers or sisters as students who had 1 brother or sister

Step-by-step explanation:

Im certain. Pls mark brainliest

If the sales tax rate is 8.5%, how much would you pay for an item that costs $26.00?

Answers

Answer:

23.79

Step-by-step explanation:

Other Questions
Tengo la baera en el refrigerador. Tengo la comida en el refrigerador. El mueble est en el refrigerador. La gorra est en el refrigerador. The scale model of a cell tower is shown below Height = 3 ft The scale used for the model is 1:60. What is the actual height of the cell tower? ? THE AMOUNT OF REST AND EXERCISE YOU GET WILL YOUR ABILITY TO DEAL WITH STRESS. A greatly impact B have no impact on C eliminate Each of 34 samples has a different standard deviation. How many of the 34samples could be from the same population?A. 33B. 34C. 32D. 31 When was the Washington state constitution adopted? A. 1887 B. 1889 C. 1789 D. 1895 como hacer un crucigrama del ojo humano What kind of model is this?Probably B. but Im close to failing if I miss this question What is the root of the polynomial equation x(x-2)(x+3) = 18? Use a graphing calculator and a system of equations.-302wSave and ExitNextSubmitMark this and return The students set up their experiments. They set up quickly. The science fair began. before, whenever, although joining words. I'm doing subordinating conjunctions with adverbs Find the selling price of a $10 item after a 40% markup Which of these Government programs encourage hygiene practicesA. Anti-obesity campaignsB. Vaccination programs C. Transportation regulations to prevent overcrowding D. Cancer Research please help me with these two i have to send it after class!!!!! why is Quality education so important? The Galpagos Islands in the Pacific Ocean have varied habitatsDivergent evolution is occurring on these islands, meaning that thespecies that live there Which of the four pathogens is the most widespread and why?A. BacteriaB. VirusC. ParasiteD. Fungi Angle 5 measures 90 degrees and angle 1 measures 40 degrees fill in the other angle measures just put it the number. Please help me with this math anyone I try but I dont want to do it wrong! HELP I NEED HELP ASAPHELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAPCan you answer 1-11 fill in the correct letter with the correct word what might happen to cause biologists to modify the cell theory? In a story about gladiators, which character is most clearly round?