Solve the system of equations: {2(3x-2y)+1=7x, 12(x+y)-15=7x+12y

Answer:

c

Step-by-step explanation:

Answer:

The answer is a

Step by step

Multiplication

8×5 = 40

8×3 = 21

21/40

Step-by-step explanation:

Answer:

Step-by-step explanation:

The sequence is arithmetic because the terms have a common difference.

Hopes this helps:)

Answer:

487,988.40

Step-by-step explanation:

I took the test

Answer:

The triangles are not similar

Step-by-step explanation:

The sides are not proportional

36/73 does not equal to 15/30

Answer:

the height of the flagpole is 5 meters

Step-by-step explanation:

The computation of the height of the flagpole is given below

Given that

the length of the rope is 13 meters

And, the ground would be 12 meters

Based on the above information, the height of the flagpole is

= √13^2 - √12^2

= √169 - √144

= √25

= 5 meters

hence the height of the flagpole is 5 meters

Answer:

y - 3 = (-5/7)(x + 4)

Step-by-step explanation:

The given line, y = 7/5x-2/5, has a slope of 7/5.  Any line perpendicular to this one must have a slope tht is the negative reciprocal of 7/5, which is -5/7.

Use the point-slope formula to come up with an equation for this new line:

y - 3 = (-5/7)(x + 4)

Answer:

V = 255

Step-by-step explanation:

Cereal box is a rectangular prism.

Rectangular Prism formula:

V = whl

Given:

w = 2.5

h = 12

l = 8.5

Work:

V = whl

V = (2.5)(12)(8.5)

V = 255

Answer: 1428

Step-by-step explanation: Length of the cereal box = 8 1/2 inches

                                       = 17/2 inches

Width of the cereal box = 3 1/2 inches

                                     = 7/2 inches

Height of the cereal box = 12 inches

Then

Volume of the cereal box = Length * Width * Height

                                       = (17/2) * (7/2) * 12 cubic inches

                                       = 17 * 7 * 12 cubic inches

                                       = 1428 cubic inches

Answer:

the first 1 in standard form is [tex]y=-2x^{2} +8x-8[/tex]

12. [tex]y=2x^{2} +4x-16[/tex]

13. [tex]y=-3x^{2}+6x+9[/tex]

14.[tex]y=2x^{2} +2x-4[/tex]

Step-by-step explanation:

hope this helps have a good rest of your night/day :) ❤

can I get brainliest please I only have 4 plz

Answer:

D, 3/5

Step-by-step explanation:

Sin equals opposite over hypotenuse.

The side opposite of Z is 30, the hypotenuse is 50

30/50 simplifies to 3/5

Answer:

1.5

Step-by-step explanation:

[tex]\frac{2x3}{4}= \frac{6}{4}[/tex]  

[tex]\frac{6}{4}[/tex]   ÷2=

[tex]\frac{3}{2}[/tex]

Hope this helps     :)

Answer:

1 1/2 or 3/2

Step-by-step explanation:

2 x 3/4

6/4

3/2

1 1/2

45 OR 46

It depends on which month and day she is born on in 1975.

If you want it from todays current date, she would be 46.

If her birthday is the 11 / 04 / 1975 (eleventh of April) -  31 / 12 / 1975 (thirty-first of December) then she is 45 years old. If her birthday has already passed in 2021 she is 46.

Answer:

Can you please provide more information about the rectangle? Do you have a graph or some points?

Answer:c

Step-by-step explanation:

Answer:

30+8%=C

Step-by-step explanation:

place the cost of the bag first then add the precent and make it equal to C wich is cost

Answer:

48 feets

Step-by-step explanation:

Given that:

Maggie descends 14 feets in 2 1/3 minutes

14 feets takes 7/3 minutes

The amount of feets she descends after 8 minutes will be x ;

14 = 7/3

x = 8

Cross multiply

7/3 * x = 14 * 8

7x /3 = 112

7x = 112 * 3

7x = 336

x = 336 / 7

x = 48 feets

Answer: C. (10, -10)

Step-by-step explanation:

Given

1) 2x-3y=50

2) 7x+8y=-10

Multiply both sides of 1) equation by 3.5

1) 3.5(2x-3y)=3.5×50

   7x-10.5y=175

2) 7x+8y=-10

Subtract 2) equation from the 1)

(7x-10.5y)-(7x+8y)=175-(-10)

-18.5y=185

y=-10

x=10

(10, -10)

Hope this helps!! :)

Please let me know if you have any questions

Answer: 182 report cards

Step-by-step explanation:

The ratio of the number of report cards Mrs. Thomas folded to the number of report cards Mrs. Maas folded is 2:3.

Mrs. Maas folded 273 report cards so the number of report cards folded by Mrs. Johnson can be found using direct proportion. Assume Mrs. Johnson folded x report cards:

2             :            3

x              :         273

Cross multiply to get:

3x = 546

x = 546 / 3

x = 182 report cards

Answer:

f(3)=10

Step-by-step explanation:

got the answer right on a test!

Answer:

I hope this would help you:)

Answer:

1. -3

2. negative

3. $18

Step-by-step explanation:

1. slope is rise/run so...

-3/1=-3

2. because run was a change of 3 DOWN the y axis we and run is a change of 1 to the right on x axis we have a negative slope. -3

3. she borrowed $18. Vertical intercept means the point where our line crosses the vertical axis. (Vertical axis is Y axis.)

Answer:

2

Step-by-step explanation:

Answer:

I hope that is useful for you :)

Given:

The shape of all building blocks is a cube of side 4 cm.

To find:

The volume of six building blocks.

Solution:

Volume of a cube is:

[tex]V=a^3[/tex]

Where, a is the side length of the cube.

Putting [tex]a=4[/tex], we get

[tex]V=(4)^3[/tex]

[tex]V=64[/tex]

It means the volume of each building block is 64 cubic cm.

Now, the volume of six building blocks is

[tex]Volume=6\times V[/tex]

[tex]Volume=6\times 64[/tex]

[tex]Volume=384[/tex]

Therefore, the volume of six building blocks is 384 cubic cm.

Answer:

resultant vector = 25.2

Step-by-step explanation:

we apply cosine theorem

Answer:

Not very likely

Step-by-step explanation:

Brₐinliest plz

9514 1404 393

Answer:

  453.9 m²

Step-by-step explanation:

It considerably simplifies the area calculation to assume the figure decomposes to a parallelogram and an equilateral triangle.

The area of the parallelogram is ...

  A = bh

  A = (17 m)(6 m) = 102 m²

The area of the equilateral triangle—using the given altitude—is ...

  A = 1/2bh

  A = 1/2(17 m)(14.7 m) = 124.95 m²

The area of the whole figure is double the sum of these areas, so is ...

  A = 2(102 m² +124.95 m²) = 453.9 m²

The area of the shape is 453.9 m².

__

Additional comment

Unless we make some assumptions about the location of the concave exterior angle at the left and right, we cannot compute the area of the figure. At least, we must assume the 10 m segments are parallel. If that is the only assumption, and other dimensions are taken at face value, the area of the figure computes to about 453.4 m². As you can see from the attachments, the altitude of 14.7 is not quite enough to make the triangle equilateral. That prevents the quadrilateral from being a parallelogram.

Further dividing the quadrilateral along its short diagonal, various lengths and angles can be found using the law of sines and the law of cosines. Then the figure area can be found as the sum of triangle areas: two triangles in the quadrilateral, and the one with altitude 14.7. This alternate approach is shown in the second attachment.