MULTIPLE CHOICE QUESTION
SOLVING SYSTEMS OF EQUATIONS BY ELIMINATION
(5x-y=74

x + 4y = 14

2x=y=5

7x+2y=-10


Which of the following will be the new
equation when the top equation
is multiplied by 4?

5x-4y=7

20x-4y=7

20x-4y=28

5x-y=28

Answer:

   ◯ ( 3, [tex]\frac{1}{2}[/tex] )  ,   ⬛(  [tex]1\frac{1}{2}[/tex]  ,[tex]2\frac{1}{2}[/tex]) ,   △( 0, [tex]4\frac{1}{2}[/tex] )

Step-by-step explanation:

             x-coordinate                    y-coordinate

◯ ---            3                                           [tex]\frac{1}{2}[/tex]

⬛ ---           [tex]1\frac{1}{2}[/tex]                                         [tex]2\frac{1}{2}[/tex]

△  ---             0                                         [tex]4\frac{1}{2}[/tex]

Measure the unit grids on the graph, x and y, that's the x and y coordinate.

Answer:

Nope

Step-by-step explanation:

Sum of 2 numbers 4 +4 is at least 8 and the sum of of one of the numbers 2 + 2 and 2 + 3 x4. = 14

Hey there!

Any numbers that is to the power of 0 is 1 because it’s just like the product just without any numbers that are given. Therefore, to answer your question: YES

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

Answer:

I do not agree with Kim.

Step-by-step explanation:

1/4 x 12 = 3

12 x 4 = 48

3 and 48 are not equal, therefore they are not the same, so I do not agree with Kim.

Hope this helps:)

Step-by-step explanation:

 So basically when you have to calculate the quarters you need to first of all the data. So this modern number first and then so in this case will be 000 and so on. Then you have to find the position. So in this case you have Around 40 value. So In this case for example the first one will be the 10th value in this case. Day 20th In this case the 30th. So for example 25% of the data of the first party will be until six. So you know 25% of the others will be six or below six. 50% of the data will be in the 20th position. So it will be below nine Or nine and 75% of data will be below or equal to 16. 16. Anything couple of 16 will be in the top 25% and those are dancers. So this is a quick summary. Remember that you find these values When you calculate the 75% position. That in this case because you have 40 values that will be 30%. For the second quarter will be the 50% and for the first quarter will be the 25%. How do you know that? 1st? You need to sort all the data. So the first smallest bodies will be here from smaller to larger and then you find the relative position paid on this percentage.

Answer:

35% increase

Step-by-step explanation:

81 - 60 = 21

21/60 = 0.35

0.35 x 100% = 35%

= 35% increase

Answer:

Step-by-step explanation:

The answer is in the attachment.

Besides this, there are more rules of trichotomy.

Answer:

Let us consider any two numbers 6 and 9 then we have the relation.

[tex] \gray{ \frak{9 > 6 \: \: \: or \: \: \: 6 < 9}}[/tex]

Rule 1.

Adding 2 on both sides then;

[tex] \frak{ \gray{9 + 2 > 6 + 2 \: \: \: or \: \: \: 6 + 2 < 9 + 2}}[/tex]

[tex]\frak{ \gray{ \therefore \: 11 > 8 \: \: \: or \: \: \: 8 < 11}}[/tex]

Both are true for addition.

Thus,when equal number is added to both sides of trichotomy symbol,the symbol remains the same.

Rule 2.

Subtracting 2 on the both sides then,

[tex]\frak{ \gray{9 - 2 > 6 - 2 \: \: \: or \: \: \: 6 - 2 < 9 - 2}}[/tex]

[tex]\frak{ \gray{\therefore \: 7 > 4 \: \: \: or \: \: \: 4 < 7}}[/tex]

Both are true for subtraction.

Thus,when equal number is subtracted to both sides of trichotomy symbol,the symbol remains the same.

Rule 3.

Multiplying both sides by 2 then,

[tex]\frak{ \gray{9 \times 2 > 6 \times 2 \: \: \: or \: \: \: 6 \times 2 < 9 \times 2}}[/tex]

[tex]\frak{ \gray{ \therefore \: 18 > 12 \: \: \: or \: \: \: 12 < 18}}[/tex]

Both are true for multiplication by positive numbers.

But if we multiplied by -2 then there will be,

[tex]\frak{ \gray{ - 18 > - 12 \: \: \: or \: \: \: - 12 < - 18}}[/tex]

These are not true.

To be true,there must be:

[tex]\frak{ \gray{ - 18 < - 12 \: \: \: and \: \: \: - 12 > - 18}}[/tex]

Thus,when both sides of trichotomy symbol are multiplied by equal positive number then the symbol remains the same.When both sides of trichotomy symbols are multiplied by equal negative numbers then the symbol changes as follows:

'<' Changes to'>' and '>' Changes to'<'.

Similarly check for division then get the same result as in multiplication.

Thus,when both sides of trichotomy symbol are divided by an equal positive number, the symbol remains the same.When both sides of trichotomy symbol are divided by an equal negative number,the symbol '<' is changed to'>' or '>' is changed to'<'.

[tex]\boxed{\frak{\gray{BrainlyFairy}}}[/tex]

Step-by-step explanation:

Area of parallelogram:

Area of trapezoid:

[tex]\bold{\huge{\blue{\underline{ Solution \:5 }}}}[/tex]

We have given ,

We know that,

[tex]\sf{\pink{ Area\: of\: parallelogram = Base × Height }}[/tex]

[Parallelogram is a polygon which having opposite sides parallel to each other and the length and breath of the parallelogram are equal ]

Subsitute the required values in the above formula :-

[tex]\sf{ Area\: of\: parallelogram = 4 × 5 }[/tex]

[tex]\sf{ Area\: of\: parallelogram = 20 in. }[/tex]

Hence, Area of parallelogram is 20 inch

[tex]\bold{\huge{\blue{\underline{ Solution\: 6 }}}}[/tex]

We have given here,

We know that,

[tex]\sf{\pink{ Area\: of\: trapezium = 1/2 ×(a + b) × Height }}[/tex]

[Trapezium is figure that having two parallel sides and 2 non - parallel sides. ]

Subsitute the required values in the above formula :-

[tex]\sf{ Area\: of\: trapezium = 1/2 ×(6+14)×8 }[/tex]

[tex]\sf{ Area\: of\: trapezium = 1/2 × 20 × 8 }[/tex]

[tex]\sf{ Area\: of\: trapezium = 10 × 8 }[/tex]

[tex]\sf{ Area\: of\: trapezium = 80 in. }[/tex]

Hence, Area of trapezium is 80 inch.

Answer:

h=5

Step-by-step explanation:

Answer:

6h +16 =46

6h +16-16

6h =30 6h ÷6 =30÷6

h =5

[tex] \sf {a}^{2} = {13}^{2} - {5}^{2} [/tex]

Formula :

Base²= Hypotenuse² - Perpendicular ²

[tex] \\ \\ [/tex]

[tex] \hookrightarrow\sf {a}^{2} = {13}^{2} - {5}^{2} [/tex]

[tex] \\ \\ [/tex]

[tex] \hookrightarrow\sf {a}^{2} =169 - 25[/tex]

[tex] \\ \\ [/tex]

[tex] \hookrightarrow\sf {a}^{2} =144[/tex]

[tex] \\ \\ [/tex]

[tex] \hookrightarrow\sf {a} = \sqrt{144} [/tex]

[tex] \\ \\ [/tex]

[tex] \hookrightarrow\sf {a} = \sqrt{12 \times 12} [/tex]

[tex] \\ \\ [/tex]

[tex] \hookrightarrow\sf {a} = 12[/tex]

Remember the a² in formula has nothing to do with the a we have to find. :)

[tex]\bold{\huge{\pink{\underline{ Solution }}}}[/tex]

[tex]\bold{\underline{ Given :-}}[/tex]

[tex]\bold{\underline{ Let's\: Begin:-}}[/tex]

That is,

[tex]\sf{\red{ ( Base)² + ( Perpendicular )² = ( Hypotenuse)²}}[/tex]

[tex]\sf{ ( a )² + ( b )² = ( c )²}[/tex]

Subsitute the required values,

[tex]\sf{ ( a )² + ( 5 )² = ( 13)²}[/tex]

[tex]\sf{ a² + 25 = 169}[/tex]

[tex]\sf{ a² = 169 - 25 }[/tex]

[tex]\sf{ a² = 144}[/tex]

[tex]\sf{ a = √144}[/tex]

[tex]\sf{ a = 12}[/tex]

[tex]\sf{\blue{ Hence,\: Length \:of \:a\: is \:12 units }}[/tex]

Answer:

oh shoot just do what you do to find the angles. all of them add up to 180 degrees

Step-by-step explanation:

Answer:

[tex]\frac{200}{3}[/tex] square units

Step-by-step explanation:

Knowing the function and that the triangle is formed by both the x and y-axis, you already have the triangle's height, which is 10 (the y-intercept of the functon) To find the base length, all you have to do is find the x-intercept. To do that, simply:

Set function equal to 0 and solve for x:

f(x) = 10 - [tex]\frac{3}{4}[/tex] x

0 = 10 - [tex]\frac{3}{4}[/tex] x

[tex]\frac{3}{4}[/tex] x = 10

x = [tex]\frac{40}{3}[/tex]

This means that the base length of the triangle is also  [tex]\frac{40}{3}[/tex]. Now that you have the height and base length, you can

Plug values into the formula for the area of a triangle:

The area of a triangle is [tex]\frac{1}{2}[/tex] × height × base

Height = 10, base = [tex]\frac{40}{3}[/tex]

Area = [tex]\frac{1}{2}[/tex] × 10 × [tex]\frac{40}{3}[/tex]

Area = 5 × [tex]\frac{40}{3}[/tex]

Area =  [tex]\frac{200}{3}[/tex]

Hey there!

2/3 + 1/4
= 2 × 4/3 × 4 + 1 × 3/4 × 3

= 8/12 + 3/12

= 8 + 3 / 12 + 0

= 8 + 3 / 12

= 11/12

Therefore, your answer is: 11/12

Good luck on your assignment & enjoy your day!

~Amphitrite1040:)

what's up? 5 gallons ≈ 19 liters  (THIS IS U.S. GALLON, THE OTHER ANSWER HAS IMPERIAL GALLON IF THAT IS WHAT YOU NEED)

best of luck with your studies

Answer:

2) 13/15

4) 11/12

6) 11/12

Answer:

#2)

To add fractions, we have to find the common denominator between the two fractions. For this one, it is 15; 5 has the least common multiple of 15 which shares with 3. So in order to make the first fraction have the denominator of 15, we have to multiply the numerator and the denominator by 3. We get 3/15. For the second, we have to multiply the numerator and denominator by 5. We get 10/15. Now that we have fractions with the same denominators, we just add the numerators together and then simplify. 3 + 10 = 13.

1/5 + 2/3 = 13/15

#4) & #6)

Repeat the above steps for each fraction to solve.

4)  11/12

6)  11/12

Total cost = number of jackets bought x price per jacket.

83.97 = 3x

Divide both sides by 3

X= 83.97/3

X = 27.99

price per jacket = $27.99

Answer:

[tex]5a^2+\frac{2a}{3} + 9[/tex]

Step-by-step explanation:

Refer to file. Trying something different. Should be easier to read than text format and is easier than mathML.

Bar chart visualization should be used if there is an association between birth and death rates during a given time interval.

A bar chart is a chart that is used to represent data using rectangular bars with heights proportional to the values that they represent. Bar charts can either be vertically or horizontally.

Bar graphs are usually used when comparing two or more different things as well as their respective changes over time.

Bar chart visualization should be used if there is an association between birth and death rates during a given time interval.

Find out more on Bar chart at: https://brainly.com/question/24741444

The area of the L shaped figure is 258 ft²

Area is the amount of space occupied by a two dimensional figure.

The area of a rectangle is given by:

Area = length * breadth

From the diagram, the area is:

Area = [18 * (21 - 12)] + (12 * 8) = 258 ft²

The area of the L shaped figure is 258 ft²

Find out more on Area at: https://brainly.com/question/25292087

Total Area = Area 1 + Area 2

Total Area = (18ft*9ft) + (21ft*8ft)

Total Area = 330ft²

I hope this helps!

Answer:

(y+2)²-(x+1)²/1=1

Step-by-step explanation:

No Clue what this is so I looked it up✓

(post deleted by author)

Answer:

6.75

Step-by-step explanation:

first let's simplify whatever is inside the parantheses

8(2x-10)=28

8*2(x-5)=28

16(x-5)=28

now we divide both sides by 16 to get rid 16

x-5 = 28/16

now move -5 to the right side

x = 28/16 + 5

x = 28/16 + 80/16 = 108/16 = 6.75

Answer:

40 and 6

Step-by-step explanation:

Answer:

[tex]- 6 {x}^{2} -2x + 20[/tex]

[tex]( - 3x + 5)(2x + 4) \\ \\ = - 3x(2x + 4) + 5(2x + 4) \\ \\ = - 3x(2x) - 3x(4) + 5(2x) + 5(4) \\ \\ = - 6 {x}^{2} - { 12x} + {10x} + 20 \\ \\ = - 6 {x}^{2}-2x + 20[/tex]

Solution:

To simplify this expression, multiply the terms together....

Hence, the simplified expression is -6x² - 2x + 20.

Hoped this helped!

Answer:

I missed the part where that's my problem

Answer:

1 1/2

Step-by-step explanation:

Divide

3 and 3 over 83

3

8

÷ 2 and 1 over 42

1

4

= 108 over 72

108

72