Given that a= (4) and b= (2)
(7) (4)
If

Given That A= (4) And B= (2) (7) (4)If

Answers

Answer 1

Answer:

x = 12, y = 20

Step-by-step explanation:

Given

4a - 2b

= 4[tex]\left[\begin{array}{ccc}4\\7\\\end{array}\right][/tex] - 2[tex]\left[\begin{array}{ccc}2\\4\\\end{array}\right][/tex] ← multiply each component by the scalar

= [tex]\left[\begin{array}{ccc}4(4)\\4(7)\\\end{array}\right][/tex] - [tex]\left[\begin{array}{ccc}2(2)\\2(4)\\\end{array}\right][/tex]

= [tex]\left[\begin{array}{ccc}16\\28\\\end{array}\right][/tex] - [tex]\left[\begin{array}{ccc}4\\8\\\end{array}\right][/tex] ← subtract corresponding components

= [tex]\left[\begin{array}{ccc}16-4\\28-8\\\end{array}\right][/tex]

= [tex]\left[\begin{array}{ccc}12\\20\\\end{array}\right][/tex] = [tex]\left[\begin{array}{ccc}x\\y\\\end{array}\right][/tex]

with x = 12 and y = 20


Related Questions


Explain how to solve the equation 21 = m +14. What is the value of m?
Enter your explanation and answer in the space provided.

Answers

Answer:

m = 7

Step-by-step explanation:

21 = m + 14

21 - 14 = m

m = 7

It takes Serina 0.25 hours to drive to school. Her route is 16 km long. What is Serina’s average speed on her drive to school?

Answers

Answer:

64 km/hr

Step-by-step explanation:

The zoo is building a new hippo pool that will
measure 55 feet by 75 feet. What is the area of the
poole

Answers

Step-by-step explanation:

We know to find the area of a rectangle we need to multiply the length times the height.

In other words,

[tex]a = l \times w[/tex]

We know our length is 75 and our height is 55, so lets multiply it.

[tex]75 \times 55 = 4125[/tex]

So our final answer is:

4125 sq. ft

Hope this Helps!

:)

Camille's birthday party will cost $32 if she invites 16 guests. How many guests can there be, at most, if Camille can afford to spend a total of $48 on her birthday party? Assume the relationship is directly proportional.

Answers

Answer:

I think its gon be 24 guests

Answer:

24 people can be there at most :)

Step-by-step explanation:

$32 divided by 16(guests) is $2

so its $2 per person

so 48$ divided by $2 is 24

So Camille can invite 24 people at the cost of 48$ being her total at most :)

A jacket is reduced by 12% to £66 in a sale.
Find the original price.

Answers

Answer:

£75

Step-by-step explanation:

100-12=88

88÷88=1%

66÷88=0.75

1%=0.75

times by 100

100%=£75

5x+4y=16 -2x-4y=-4
Show your step by step process.
Solve the system of linear equations.​

Answers

Answer:

x=1 and y= 5[tex]\frac{1}{4}[/tex]

Step-by-step explanation:

To solve this, lets take the first equation and find the x value.

Because it is ordered in standard form, we need to convert to slope-intercept form, and isolate the y.

5x+4y=16

-5x       -5x

4y=-5x+16

÷4   ÷4  ÷4

y=[tex]\frac{-5}{4}[/tex]+4

or

y=-1[tex]\frac{1}{4}[/tex]+4

or

y= 5[tex]\frac{1}{4}[/tex]

Now that we have the y value, we can use this to find the x value by inserting it into either equation, since they both have y values in them. Going with the first one again, lets try it:

5x+4([tex]\frac{-5}{4}[/tex]+4)=16

5x-5+16=16

5x+11=16

    -11 -11

5x=5

÷5 ÷5

x=1 and y= 5[tex]\frac{1}{4}[/tex]

HELP I WILL GIVE LOTS OF POINTS FOR IT

Answers

Answer:

(1,3)

Step-by-step explanation:

because that is where they intersect

Answer:

y=4x-1y=−x+4

Step-by-step explanation:

The top one I need help with

Answers

Same thing as what you did on the bottom. Find numbers with both 7 as the base and numbers that add to 14 on the top. Possibilities:
1) 7^10•7^4
2)7^6•7^8
37^2•7^12

A number n increased by 4 is -19

Answers

Answer:

n=23

Step-by-step explanation:

4-23=19

meme

Answer:

-23

Step-by-step explanation:

-23+4= -19

NEED HELP ASAP
A quarterback’s pass-completion percentage is 70%. Eight of his passes are randomly selected. What is the probability that 6 of them were successful passes?

0.06
0.08
0.12
0.30

Answers

Answer:0.08

The answer is b i always got your back

Step-by-step explanation:

Answer:

.30

Step-by-step explanation:

find the product of (x-3)^2

Answers

Answer:

x^2 - 6x + 9

Step-by-step explanation:

(x-3)^2

(x-3)(x-3)

x^2 -3x -3x + 9

x^2 - 6x + 9

^2 means (x - 3) times itself twice.

(x - 3)(x - 3)             multiplying polynomials- Firsts, Outs, Inners, Lasts (FOIL)

                                 Firsts (x* x)   Outs (x*-3)   Inners (-3 * x)   Lasts (-3*-3)

xx -3x -3x +9            Combine like terms.

      -3x -3x             Adding/subtracting integers- same signs means you add          

                                     and keep the sign.

x^2 -6x + 9              

The permeters of the triangles shown are equal. Find the side lengths of each triangle
AB=
BC =
AC=
PQ=
QR=
PR=

Answers

Answer:

AB = 51

BC = 50

AC = 42

PQ = 42

QR = 42

PR = 59

Step-by-step explanation:

Perimeter of ∆ ABC = Perimeter of ∆ PQR

3x + 9 + 3x + 8 + 3x = 3x + 3x + 4x + 3

9x + 17 = 10x + 3

17 - 3 = 10x - 9x

14 = x

.: x = 14

AB = 3x +9 = 3×14+9 = 42+9 = 51

BC = 3x +8 = 3×14+8 = 42+8 = 50

AC = 3x = 3×14 = 42

PQ = 3x = 3×14 = 42

QR = 3x = 3×14 = 42

PR = 4x +3 = 4×14+3 = 56+3 = 59

5. Solve the system, show all work. (3 points)
+
s y=x+7
y = 6x + 2
Solution:
How do you solve this

Answers

Step-by-step explanation:

y=x+7........eqni

y=6x+2.....eqnii

putting the value of x in eqnii

y=6x+2

or, x+7=6x+2

or, 7-2=6x-x

or 5= 5x

hence,x=1

sbstutuung the value of x in eqni,

y= x+7

=1+7

=8

hence the value of y is 8

Please Help. Im stuck on this question and i cant figure it out

Answers

Answer:

Where is it?

Step-by-step explanation:

Where is the question exactly?


Can I get help on this math problem makes makes no sense

Answers

(2,-1) The intersecting point is the point where the two lines meet.

pls help me i only have 5 minutes

Answers

Give instructions about sound, lighting etc

102 = 1.2 x w
what is w?

Answers

Answer:

122.4

Step-by-step explanation:

Just Divide.

Answer:

85

Step-by-step explanation:

1x2 x 85 = 102

In a sale all the prices are reduced by 30%. Calculate the sale price of the following items
a bike that cost £250
b. a pair of gloves that cost £3.20

Answers

Answer:

A: 26.89

B: 0.96

Step-by-step explanation:

70 percent of 250 is 26.89. 70 percent out of 3.20 is 0.96.

Ali has invited 18 adults and 6 children to a cookout.
Mo, Ali’s best friend, suggests that Ali seat an equal number of adults and an equal number of children at each table.
What is the greatest number of tables Ali could use? How many adults and how many children would be seated at each table? Explain.

Answers

3 tables and is going to be 6 adults and 3 kids at each because you just have to divide 18 by 6

Answer:

Ali could use 6 tables. There would be 3 adults

and 1 child seated at each table.

Step-by-step explanation:

GCF to find the number of tables:

18: 1, 2, 3, 6 , 9, 18;

6: 1, 2, 3, 6 .

7. What is the slope of the line that passes through the points (14, -18) and (5, -12)?​

Answers

Answer:

slope =[tex]-\frac{2}{3}[/tex]

Step-by-step explanation:

Use the slope formula [tex]m = \frac{y_2-y_1}{x_2-x_1}[/tex] to find the slope, or [tex]m[/tex]. The [tex]x_1[/tex] and [tex]y_1[/tex] represent the x and y values of one point, and the [tex]x_2[/tex] and [tex]y_2[/tex] represent the x and y values of another point. So, substitute the x and y values of the points (14, -18) and (5, -12) into the formula and solve:

[tex]m = \frac{(-12)-(-18)}{(5)-(14)}\\m = \frac{-12+18}{5-14}\\m = \frac{6}{-9} \\m = -\frac{2}{3}[/tex]

Thus, the slope is [tex]-\frac{2}{3}[/tex].

-7m²-10m+17
common factor

Answers

Answer:

Greatest common factor of 17

So, the prime factors of 45 are 3, 3, and 5. The Greatest Common Factor is the greatest number that is common (that is, in both lists). It is 17. Since 17 is a factor of itself and of 51 -- which is 3 x 17 -- then the greatest possible common factor is 17!

Step-by-step explanation:

Add and subtract the second term to the expression and factor by grouping.

- (m - 1 )( 7m + 17 )

simplify this equation: 2^-4 (2√3)^2

Answers

Answer:

download photo math you can take pictures of math problems and will solve them.

How do solve for x in supplementary ,complementary and vertical angles

Answers

U do supplementary + complementary
Supplementary plus complementary

PLEASE GUYSSSSSSSSSSSSSSSSS

Answers

Answer: (hopefully I didn't make a mistake :D )

y=-3+21

Step-by-step explanation: (I can't sketch the graph for you)

First you need to find the slope of the line passing through the points (5,4) and (-7,0). This can be done using the point-slope form of a line.

Point 1: (-7,0)

Point 2: (5,4)

y2-y1=m(x2-x1)

m= (y2-y1)/(x2-x1) = (4-0)/(5-(-7)) = 4/12= 1/3

Now, when two lines are perpendicular, they are negative recopricols. So the slope of the line would be -3.

Since the equation of the line you are trying to find passes through the point (4,9), using point-slope formula again and solve for y.

y-9=-3(x-4)    

y= -3x+12+9

y=-3x+21

What is the solution set for –1 ≤ –2f + 1 ≤ 9?

Answers

The inequality for f is :
-4≤f≤1

it is 212.5°C outside when the temperature starts increasing by 2.5°C each hour. How long will it take for the temperature to reach 25°C?

Answers

Answer: 75 hours

Step-by-step explanation:

Assuming you meant decreasing... you find out the span between 212.5 and 25 which is 187.5 and then divide it by 2.5 (which is the change)

if you could anwser the second question that would be great caus e i only get to do this proble once :) no explanation needed

Answers

Angle 1 and 2 are equal because of correspondence angle

so , (78-2x) = (89-3x)

x = 89 - 78

x = 11

hence angle 1 = ( 78 - 2*11) = 56

and angle 2 = ( 89-3*11) = 56

So, both of angle is 56

hope it help and your day will full of happiness

Evaluate the algebraic expression x^2 - 20 for x = 7 and for x = 9

Answers

Answer:

29

61

Step-by-step explanation:

x^2 - 20

x = 7 and 9

Evaluate

___________

We know the values of x, let's substitute them with the x in the problem :

(7)^2 - 20

49 - 20

29

(9)^2 - 20

81 - 20

61

PLEASEEEE HELP ME!!
The area of a rectangular poster board can be represented by the expression
64x²y. If the width is 16xy, which expression represents the length of the poster
board?
A = length * width

Answers

Answer:

Step-by-step explanation:

A = length * width

Length = A ÷ width

           [tex]= \frac{64x^{2}y}{16xy}\\\\= 4*x^{2-1}*y^{1-1}\\\\= 4x^{1}*y^{0}\\\\= 4x*1\\=4x[/tex]

If f(1) = 9 and f(n) = 4f(n − 1) then find the value of f(4).

Answers

Answer:

576

Step-by-step explanation:

f(2) = 4f(1) = 4*9 = 36

f(3) = 4f(2) = 4 * 36 = 144

f(3) = 4f(3) = 4 * 144 = 576

Other Questions
HELPP BRAINLIEST AND 12 POINTS Does the author provide sufficient evidence that people lie with surprising frequency?Choose 1 answer:Choose 1 answer:(Choice A)ANo, because the people didnt actually lie very much in their conversations.(Choice B)BYes, because people lied more than they told the truth in the conversations.(Choice C)CNo, because the experiment relied on self-reporting of lies and the expectation of lie frequency is subjective.(Choice D)DYes, because the conversations were recorded and people reported how often they lied. Identifying an Editing Tool or OptionWhich tool or option can you use to copy and apply the color of an existing text to another text within a presentation?format painterfont dialog boxfont color optionreplace fonts option How did the Fourteenth and Seventeenth Amendments change the system of federalism originally established in the Constitution? What is the effect of combining the objectiveobservations and the imagery?Readers become confused about what ishappening inside and outside the wire.O Readers feel distanced from the scene.O Readers learn what weapons were used andvisualize what those weapons did. whats the answer to 3x+4=6x+19 Why did workers go on strike in the Carnegie steel mills outside of pittsburgh pennsylvania? How did the government respond to the Homestead strikes? Kala will rent a car for a day. The rental company offers two pricing options: Option A and Option B. For eachpricing option, cost (in dollars) depends on miles driven, as shown below.no 1Option AOption 3Cost10(in dollars)TOMiles driven5?(a) If Kala drives the rental car 300 miles, which option costs more?Option A Option BHow much more does it cost than the other option?so(b) For what number of miles driven do the two options cost the same?If Kala drives more than this amount, which option costs more?Option A Option B A pair of shoes is on sale for 80% of the original price. The saleprive is $60. What was the original price? How did Oklahoma assist British and European militaries?A They provided prisoner of war camps.B They created and ran flight training facilities.C They stayed out of the way of conflicts. D They built bases to house injured European soldiers. i need help will give crown Which sentence contains a METAPHOR? * WILL GIVE Brainiest TO THE CORRECT ANSWERTessa loves tongue twisters.Everyone knows thats not a good idea, Tom replied.Your plan is a recipe for disaster, Jake told his friend.None of the above I literally have no clue how to do this. what is a narrative. i would like to know the answer According to the Rand Corporation, what happened to the real income of the bottom tenth of American families between 1973 and 1995? Geoff earns 10% commission on his total sales at work.Part A: Suppose Geoffs sales totaled $895 last week. How much did he earn in commission? A. $89.50 B. $984.50 C. $903.95 D. $8.95Activity 2 of 2Part B: To pay for a concert ticket, Geoff needs to earn $135 in commission. What must Geoffs sales total for the week? A. $13.50 B. $1,350.00 C. $135.00 D. $13,500.00 Which rational number is less than 4/9 78 x 92 rounding to 1 significant figure PromptUsing complete sentences post a detailed response to the following.While visiting a friends house, you hear their siblings arguing over whether or not visual novels are real games or not. You hear Boris, the older sibling, saying and you just sit there and click to read the next lineyou might as well be reading a comic book and turning a page and call that a game! When they find out youve been taking a class on game design, they ask you to settle the argument for them. What would you say to them? Max car holds 18 gallons of gasoline driving on the highway the car uses approximately 2 gallons per hour. let H represent the number of hours max has been riding on the highway. write an expression that shows how many gallons of gasoline Max has left after driving H hours. then find the number after max drives 3.5 hours on the highway. PLS HELP I WILL GIVE BRAINLIEST