Kamal wrote the augmented matrix below to represent a system of equations
1 0 1-1
1 3 -1-9
3 2 0- 2
Which matrix results from the operation -3R2 R2?

Answer:

Do you still need this one?

Step-by-step explanation:

[tex]x\geq 1[/tex]

Answer: 13 triangles were used.

Step-by-step explanation:

Each triangle has 3 sides where each square has 4 sides.

Total triangles and squares = 17

Total sides they have = 64

Let x= Number of triangles , y= Number of squares

3x = sides of all triangles , 4x = Sides of all squares.

Now, [tex]x+y=17\ \ \ \ (i)[/tex]

[tex]3x+4x=64\ \ \ \ \ (ii)[/tex]

Multiply 3 on both sides of (i) , we get

[tex]3x+3y = 51\ \ \ \ (iii)[/tex]

Eliminate (ii) from (ii)

x= 13

Put this in (i), we get

[tex]13+y=17\\\\\Rightarrow\ y= 17-13=4[/tex]

Hence, 13 triangles were used.

There were 4 triangles used to frame a geometric pattern

Two are more equations that shares common variables are the system of equations. System of equations can be solved by using elimination method or substitution method .

Use the given information to frame system of  equations.

Assume variables for the unknown

Let x be the number of triangles used and 'y' be the number of squares used

A geometric pattern is made using 17 triangles and squares.

Sum of triangles and squares is equal to 17

[tex]x+y=17[/tex]

the triangles and squares have a total of 64 sides,

Each triangle has 3 sides and each square has 4 sides

[tex]3x+4y=64[/tex]

Solve both the equations using substitution method

[tex]x+y=17\\y=17-x[/tex]

Substitute y in second equation

[tex]3x+4y=64\\3x+4(17-x)=64\\3x+68-4x=64\\-1x+68=64\\-1x=64-68\\-1x=-4\\x=4[/tex]

Now find out y

[tex]y=17-x\\y=17-4\\y=13[/tex]

'x' is the number of triangles used

x=4, so 4 triangles were used

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Answer:

fourth option

Step-by-step explanation:

The equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

y - 3 = 2(x + 4) ← is in point- slope form

with slope m = 2 and (a, b) = (- 4, 3 )

Answer: fourth answer

Step-by-step explanation: when you put it into slope point form you find out m=2 and (-4,3)

Answer:

D. $24.75

Step-by-step explanation:

24.75 - 4.75 - 1.65 = 18.35

Given:

S is between R and T. RS = 2x + 7, RT = 4x , and ST = 28.

To find:

The length of segment RT.

Solution:

It is given that S is between R and T. So, by segment addition property, we get

[tex]RS+ST=RT[/tex]

On substituting the values, we get

[tex](2x+7)+(28)=4x[/tex]

[tex]2x+35=4x[/tex]

Subtract 2x from both sides.

[tex]35=4x-2x[/tex]

[tex]35=2x[/tex]

Divide both sides by 2.

[tex]\dfrac{35}{2}=x[/tex]

[tex]x=17.5[/tex]

Now,

[tex]RT=4x[/tex]

[tex]RT=4(17.5)[/tex]

[tex]RT=70[/tex]

Therefore, the length of segment RT is 70 units.

Answer:

The answer is about 4.242 feet

Answer:

the common multiple between 12 and 20 is 60

Answer:

60

Step-by-step explanation:

5(12)=60

3(20)=60

Answer:

3$

Step-by-step explanation:

every 16 ounces is 1 pound

Answer:

The broccoli will cost $3.00 for 32 ounces            1lbs (pound) = 16 ounces

                                                                                so 16oz+16oz= 32lbs

A is the correct answer

Answer:

260

570

850

920

410

710

660

120

that all for now they out of order

Step-by-step explanation:

Answer:

Step-by-step explanation:

You better give brainliest for that also please refrain from these type of questions. I bet people would apprieate it

Marcelino will bear a loss of $7.5 and the correct statement is "Marcelino will have a loss of $7.50: his costs are more than his profits".

Given information:

The requirements and cost of making the ballons is:

Item                                             Cost

Thirty Balloons                           $22.50

Ribbon                                        $7.50

Helium Tank Rental                   $15.00

Marcelino sells balloons at the rate of $1.25 per balloon.

The total cost of creating 30 balloons will be,

[tex]22.5+7.5+15=\$\;45[/tex]

Now, after selling 30 balloons, he will earn,

[tex]1.25\times 30=\$\;37.5[/tex]

The earning is less than the cost of making the balloons.

So, Marcelino will bear the loss. The loss can be calculated as,

[tex]45-37.5=\$\;7.5[/tex]

Therefore, Marcelino will bear a loss of $7.5 and the correct statement is "Marcelino will have a loss of $7.50: his costs are more than his profits".

For more details, refer to the link:

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Answer:

I think C

Step-by-step explanation:

marcelio will have -$7.50; his costs r more then his profits  

Answer with step-by-step explanation:

A. No

B. 22.25

C:

    A. 20 is less than half of 47, and 35 is more than half of 60, which clearly means Lin would need more time.

    B. 35 × 2 = 70. 70 - 60 = 10. 7/20 × 35 = 12.25. 10 + 12.25 = 22.25

Hope this was helpful!

Answer:

179,000-94000

Step-by-step explanation:

85000 He made $85000

Answer:

the answer is $85,000

Step-by-step explanation:

so basically you just subtract because less stands for subtraction

179000

-94000

________

$85,000

hope i helped and sorry if i was late :)

Answer:19 games would have to be played.

Step-by-step explanation:

Answer:

320 square feet per hour

Step-by-step explanation:

800/2.5=320

320 ft²

Hi there !

2  1/2 hours ........ 2.5 hours

2.5 h .......... 800 ft²

1 h ......................x ft²

x = 1×800/2.5

= 800/2.5

= 320 ft²

Good luck !

The answer is 81 your welcome!☺

Answer:

Step-by-step explanations:

The equation used for solving the value of x will be 2x+4x+10+6x-10 = 180 and value of x is 15.

A common property of all kinds of triangles is the angle sum property. The angle sum property of triangles is 180°. This means that the sum of all the interior angles of a triangle is equal to 180°.

Given a triangle with interior angles 4x+10, 6x-10 and 2x

According to the angle sum property of a triangle,

2x+4x+10+6x-10 = 180

x = 15

Hence, The equation used for solving the value of x will be 2x+4x+10+6x-10 = 180 and value of x is 15.

For more references on angle sum property of a triangle, click;

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Answer:

1

Step-by-step explanation:

Anything raised to the power of zero is one. And 1^-2 is is 1.

Answer:

the correct answer is 31

The area of the trapezoid is 60 square centimeters.

To find the area of a trapezoid, you can use the formula:

Area = (1/2) × (a + b) × h

Where "a" and "b" are the lengths of the parallel sides of the trapezoid, and "h" is the height or the perpendicular distance between the parallel sides.

As per the question, the lengths of the parallel sides are 3 cm and 9 cm, and the height is 10 cm.

Plugging these values into the formula, we get:

Area = (1/2) × (3 cm + 9 cm) × 10 cm

Area = (1/2) × 12 cm × 10 cm

Area = 6 cm × 10 cm

Area = 60 square centimeters

Therefore, the area of the trapezoid is 60 square centimeters.

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Answer:

g (3) +h (2) = 3g + 2h

Answer:

4x^2

Step-by-step explanation:

(8x^3)^(2/3)

= 8^(2/3) * (x^(3))^2/3

8^(2/3) can be rewritten as ³√8²;

³√8² = ³√64

= 4

(x^(3))^2/3 = x^(3 * 2/3)

= x^2

Your solution is 4x^2, option a

Answer:

6/5 or 1.2

Step-by-step explanation:

First, you need to multiply the length by how much the width is of the length, which is 2/3, so you multiply 1 4/5 by 2/3 and you get 6/5. If you want the decimal form, then the answer will be 1.2.

Answer:

Remembering the properties of numbers is important because you use them consistently in pre-calculus. The properties aren't often used by name in pre-calculus, but you're supposed to know when you need to utilize them.