Combine like terms.
9y2 + 9(7y2-5) =
I need this for now please

Answer:

x=1.15

y=2.12

Step-by-step explanation:

look at the picture ..........

Answer:

x=5.4

y= 9

z= 11

Step-by-step explanation:

5x= 27

x= 5.4

2y-5=y+4

y=9

3z = 33

z =11

Answer:

because as long as it's the same number, the equation is still the same as long as you have the same numbers and you're using the same subtraction/addition properly

Step-by-step explanation:

Answer:

la respuesta es voy a la iglesia corona plis

Answer:

12.0 cm

Step-by-step explanation:

✔️First, find the height, BC, of the trapezium using Pythagorean Theorem.

BC² = 10² - (9 -3)²

BC² = 10² - 6²

BC² = 64

BC = √64

BC = 8 cm

✔️Find AC using Pythagorean Theorem:

AC² = AB² + BC²

AC² = 9² + 8²

AC² = 145

AC = √145

AC = 12.0415946 ≈ 12.0 (3 significant figures)

(-7, 0)

i promise im right

Answer:

−2c+22

Step-by-step explanation:

Answer:

DIMENSIONS:

THE DOUBLE: 42.6 m cubed on both the length, width, and height

THE HALF: 10.6 m cubed on both the length width and height

THE CUBE: 21.3 m cubedon both the lengrh, width, and height

MOST HEIGHT: The Double at 42.6 m cubed

Step-by-step explanation:

We know that we have 64 m cubed. First, we should find out the volume of each cube. 64 times 2 is 128. This means the Double equals 128 in volume and half of 64 is 32. this means the Half is 32 in volume. Since these are all cubes, every side is exactly the same(or else it would be a rectangle) the formula for finding volume is length times width times height, we would divide EACH of the volumes by 3. 128 divided by 3 is 42.6 meaning the doubles dimensions would be 42.6 on each part of the cube (the lenght width and height would all be 42.6) you can check this by multiplying 42.6 by 3 which takes us back to 128. For the cube we would do 64 divided by 3 which is 21.3 pn every side and 32 divided by 3 is 10.6. The one with the most height is the double. I am not sure how to find the floor space I am super sorry but I hope this helps :)

Answer:

y=27

Step-by-step explanation:

3y+53=7y-55

step 1 add 55 to each side

3y+108=7y

step 2 subtract 3y from each side

108=4y

step 3 divide each side by 4

y=27

Answer: 61

Step-by-step explanation:

Use addition to solve the equation.

18 + 18 + 18 + 18 - 24 + 1 + 3 + 5 + 7 + 20 - 23 = 61.

Answer:

61

Step-by-step explanation:

Answer:

1/5

Step-by-step explanation:

Answer:

cos0 = 1

sin30= 1/2

tan0 = 0

Answer:

[tex]a) cos0^o = 1\\b) sin30^o = \frac{1}{2} \\c) tan0^o =0[/tex]

Answer:

21°

Step-by-step explanation:

<DCB = 3x + 8°

< DAB = 5x + 4°

Now

<DCB + <DAB = 180° { being opposite angles of cyclic quadrilateral }

3x + 8° + 5x + 4° = 180°

8x + 12° = 180°

8x = 180° - 12°

8x = 168°

x = 168° / 8

Therefore x = 21°

Hope it will help :)

Answer:

0.75 : 1

Step-by-step explanation:

Answer:

9 is divisable by 3.

A number that has 9 as a factor can be divided by 9 so it can also be divided by 3.

Answer:

A. 85°

Step-by-step explanation:

By intersecting chords theorem:

[tex] m\angle ABC= \frac{1}{2} (130 \degree + 40 \degree)[/tex]

[tex] m\angle ABC= \frac{1}{2}\times 170 \degree[/tex]

[tex] m\angle ABC= 85 \degree[/tex]

Answer:

I'm thinking it's false

Step-by-step explanation:

however, I would wait for another's opinion as well

Answer:

false

Step-by-step explanation:

just my opinion but if you think I'm wrong it's okay

Answer:

3:2

Step-by-step explanation:

15 to 5 in simplest form you caan multiply by 5 so in simplest form its

5x3=15

5x2=10

so anwswer is 3:2

plz mark brinliest

If g(1) = 0 and g(n) = g(n-1) + n, then g(2) = 2

The given relationship is:

g(1) = 0

g(n) = g(n-1) + n

g(2) = ?

Since g(1) is already known

g(2)  =   g(1)  +  2

Note that g(1) = 0

Substitute g(1) = 0 into g(2)  =   g(1)  +  2

g(2) = 0  +  2

g(2)  =  2

Therefore, if g(1) = 0 and g(n) = g(n-1) + n, then g(2) = 2

Learn more on sequence here: https://brainly.com/question/6561461

Answer:

x=8

Step-by-step explanation:

(2x + 1)² = x² + (2x - 1)² = x² + (2x - 1)(2x - 1)

(2x + 1)(2x + 1) = x² + 4x²-2x-2x+1

4x²+2x+2x+1 = 5x²-4x+1

4x²+4x+1 = 5x²-4x+1

0= 5x²-4x²-4x-4x+1-1

0= x²-8x

x²-8x=0

x²=8x

x=8

Answer:

0

Step-by-step explanation:

2/10 is 2/10 away from 0, 2/10 is 3/10 away from 1/2, and 2/10 is 8/10 away from 1

Answer:

x=4

Step-by-step explanation:

48/5x-2 = 40/2x+7

48(2x+7) = 40(5x-2)

96x+336 = 200x-80

-96x           -96x

336 = 104x-80

+80            +80

416/104 = 104x/104

x = 4

The value of x is equal to 4.

we have given that,

If CDG ~ EDF, find the value of x.

2x+7

5x-2

48

40

we have to determine the value of the x.

Two triangles are similar if they have the same ratio of corresponding sides and equal pairs of corresponding angles.

48/5x-2 = 40/2x+7

48(2x+7) = 40(5x-2)

96x+336 = 200x-80

-96x           -96x

336 =  104x-80

+80            +80

416/104 = 104x/104

x = 4

To learn more about a similar triangle visit:

https://brainly.com/question/2644832

#SPJ2

Answer:

1. 90 degrees

2. 23 degrees

3. 67 degrees

4. 5 units

5. 12 units

90°

23°

67°

5 units

12 units

Answer:

5x6

Step-by-step explanation:

5x6

5 groups of 6

=30

Answer:

The basketball game sold 439  adult tickets and  858 student tickets.

Step-by-step explanation:

A system of linear equations is a set of two or more equations of the first degree, in which two or more unknowns are related.

Solving a system of equations consists of finding the value of each unknown so that all the equations of the system are satisfied. That is, in the systems of equations, one must look for the values ​​of the unknowns, with which when replacing, they must give the solution proposed in both equations.

Adult tickets to a basketball game cost $5. Student tickets cost $1. A total of $3,047  was collected on the sale of 1,291 tickets.

With "x" the number of adult tickets sold and "y" the number of student tickets sold, you have the following system of equations:

[tex]\left \{ {{x+y=1291} \atop {5*x+1*y=3047}} \right.[/tex]

Through the substitution method, you must solve for one of the unknowns in one of the equations and substitute its value in the following one: in this case you solve for the variable y from the first equation:

y=1291 -x

and you replace in the second equation:

5*x + 1291 - x= 3047

Solving, you get:

5*x-x= 3047 - 1291

4*x= 1756

x= 1756÷4

x=439

Replacing this value in the expresion y=1291 -x you get:

y=1291 -439

y= 858

The basketball game sold 439  adult tickets and  858 student tickets.

Answer:

B

Step-by-step explanation:

Answer:

g = 1/3 x - 2/3

Step-by-step explanation:

x =3g + 2

Switch sides:

3g + 2 = x

Take away 2 from both sides:

3g = x - 2

Divide both sides by 3:

g = 1/3 x - 2/3