Due tonight.. *no links*

Answer:

x= -3 and y= 0

Step-by-step explanation:

5x+2y=-15

2x-2y=-6    

7x        =-21

x= -3

Putting value of x in equation 1  

5(-3) +2y=-15

-15+2y= -15

2y= 0

y= 0

This can be solved with the help of matrices

In matrix form the above equations can be written in the form

[tex]\left[\begin{array}{ccc}5&2\\2&-2\/\end{array}\right][/tex]  [tex]\left[\begin{array}{ccc}x\\y\\\end{array}\right][/tex]  = [tex]\left[\begin{array}{ccc}-15\\-6\\\end{array}\right][/tex]

Let

[tex]\left[\begin{array}{ccc}5&2\\2&-2\/\end{array}\right][/tex] = A  [tex]\left[\begin{array}{ccc}x\\y\\\end{array}\right][/tex]  = X  and  [tex]\left[\begin{array}{ccc}-15\\-6\\\end{array}\right][/tex]= B

Then AX= B

or X= A⁻¹ B

where  A⁻¹= adj A/ ║A║   where mod A≠ 0

adj A=  [tex]\left[\begin{array}{ccc}-2&-2\\-2&5\/\end{array}\right][/tex]

║A║= ( 5*-2- 2*2)= -10-4= -14≠0

X= A⁻¹ B

 [tex]\left[\begin{array}{ccc}x\\y\\\end{array}\right][/tex]    =- 1/14  [tex]\left[\begin{array}{ccc}-2&-2\\-2&5\/\end{array}\right][/tex]   [tex]\left[\begin{array}{ccc}-15\\-6\\\end{array}\right][/tex]

 [tex]\left[\begin{array}{ccc}x\\y\\\end{array}\right][/tex]    =- 1/14     [tex]\left[\begin{array}{ccc}-2*-15&+ -2*-6\\-2*-15&+ 5*-6\\\end{array}\right][/tex]

 [tex]\left[\begin{array}{ccc}x\\y\\\end{array}\right][/tex]  =- 1/14 [tex]\left[\begin{array}{ccc} 30&+12\\30&+-30\\\end{array}\right][/tex]

 [tex]\left[\begin{array}{ccc}x\\y\\\end{array}\right][/tex]  =- 1/14 [tex]\left[\begin{array}{ccc}42\\0\\\end{array}\right][/tex]

[tex]\left[\begin{array}{ccc}x\\y\\\end{array}\right][/tex]  = [tex]\left[\begin{array}{ccc}-42/14\\0/-14\\\end{array}\right][/tex]

[tex]\left[\begin{array}{ccc}x\\y\\\end{array}\right][/tex]  = [tex]\left[\begin{array}{ccc}-3\\0\\\end{array}\right][/tex]

From here x= -3 and y= 0

Solution Set = [(-3,0)]

Answer:

40

Step-by-step explanation:

SO im guessing if its the full graph one box counts 1.

So the top side counts 8

The left one is 15

The perimeter means adding all the sides together.

We already have 2. But finding the hypotenuse would not be easy from graph so we will use Pythagorean theorem.

a^2+b^2=c^2

8^2+15^2 = c^2

64+225 = c^2

289 = c^2

c = 17

so the perimeter is 8+15+17 = 40

Answer:

z = 10

Step-by-step explanation:

Distribute 2 to the terms in the parentheses:

2(2z + 5) = 50​

4z + 10 = 50

Subtract 10 from both sides

4z = 40

Divide each side by 4

z = 10

So, the answer is z = 10

Answer:

10

Step-by-step explanation:

1. Factorize left side.

2*2z+2*5=50

4z+10=50

2. Subtract 10 from both sides

4z=50-10

4z=40

3. Divide both sides by 4

z=40/4

z=10

Answer:

the first one is true and not sure 100% that the others are false all

Answer:

The answer is A.

Step-by-step explanation:

Answer:

0,1,2,3,4,5,6,7,8,9,10,11

Step-by-step explanation:

starts at 0 and ends at 11

(i think)

Answer:

33

Step-by-step explanation:

split it in to two shape 3*7 and 6*2

7*3=21

6*2=12

21+12=33

Answer:

every odd number that squares up and add 2 will give an even answer

Answer:

see explanation

Step-by-step explanation:

Given that p is an odd number , then

p² is always an odd number

Adding 1 to an odd number gives an even number.

So p² + 1 is always even for p odd

Answer:

72 degrees. Don’t copy me!!!!

Step-by-step explanation:

Answer:

A translation of 3 units to the right and a translation of one unit upwards.

Step-by-step explanation:

When we analyze translations of whole figures, all the points in the figure suffer the same translation, then we only need to analyze the translation of one of the points.

This means that we can only see the translation from A to A'

First, let's find the coordinates of each point:

A (2, 3)

A' (5, 4)

The translation is given if we calculate the difference between these coordinates:

A' - A =  (5, 4) - (2, 3) = (5 - 2, 4 - 3) = (3, 1)

The change in the x-value is 3.

The change in the y-value is 1.

Then we can conclude that:

A' is 3 units at the right of A

A' is 1 unit above A.

Then the translation is:

A translation of 3 units to the right and a translation of one unit upwards.

Answer:

The second one! -5.99%

Step-by-step explanation:

Answer:

1. 729

2. 25

3. 513

4. 343

5. 1

Step-by-step explanation:

1.

3x3x3x3x3x3

9x9x9

81x9

729

2.

-5 x -5

5x5

25

3.

8-6=2

2x2x2x2x2=

4x4x2=

16x2=

32

-2x-2x-2x-2=

4x4=

16

32x16+1=513

4.

7x7x7x7=

49x49=

2401

2401x2401=

5764801

7x7x7x7x7=

2401x7=

16807

5764801/16807 = 343

5.

9-1=8

8x8x8=512

6+2=8

8x8x8=512

512/512=1

Answer:

Step-by-step explanation:

Parts of the question are missing.

y = a(x-h)² + k is a vertical parabola.

If a is positive, the parabola opens upwards.

If a is negative, the parabola opens downwards.

The vertex is at (h, k)

Answer:

70 1/5 inches or 70.2

Step-by-step explanation:

9x12 is 108 inches

108 divided by 2 is 54 inches

1 inch for every 54 inches

1.3x 54 is 70.2

Answer:

c

Step-by-step explanation:

it is

Answer:

He can run 12 miles in 132 minutes.

Step-by-step explanation:

2/22=x/132

simplify 2/22 into 1/11

1/11=x/132

cross product

11*x=1*132

11x=132

x=12

Answer:

Im not sure if my asnwer is right but i got 38.13

Step-by-step explanation:

Our formula is pi×r×2÷2+L+W

Segment is a portion of line

The correct answer is segment and line.

The following information should be considered;

Learn more: brainly.com/question/17429689

Answer:

(2,4)

Step-by-step explanation:

because the coordinates change places and signs

Answer:

(- 4, - 2 )

Step-by-step explanation:

Answer:

11,695 ft²

Step-by-step explanation:

Since the pizza is circular

Area of a circle = π r²

but radius is the diameter divided by 2

Answer:

1/4

Step-by-step explanation:

The answer would be one fourth because the amount of red is 5/20 which is equal to 1 fourth.

Hope this helps

Consider Marking Brainliest

Answer:

non-linear i'm pretty sure

Step-by-step explanation:

Answer:

mean:54.857142857143

Range:44

median:56

mode:46

Answer:

Mean: 54

Median: 56

Range: 44

Mode: 46

If you need any help revolving around this topic,feel free to ask and I will be happy to help. Good luck!

Answer:

Skewed Left

Step-by-step explanation:

Answer:

[tex]y=3(2)^{x-5}+6[/tex]

Step-by-step explanation:

Let the equation of the exponential function with base 2 is,

[tex]y=a(2)^{x+c}+d[/tex]

Here, a = vertical stretch

c = Horizontal shift

d = Vertical shift

If this function has a vertical stretch by a factor of 3,

Equation will be,

[tex]y=3(2)^{x+c}+d[/tex]

If this function has a shift of 5 to the right,

Equation of the function will be,

[tex]y=3(2)^{x-5}+d[/tex]

If this function has a shift of 6 units upwards,

[tex]y=3(2)^{x-5}+6[/tex]

Answer: x=15/2

Step-by-step explanation: Divide both sides by 4 so 64/4  Simplify 64/4 ​to  16. 2x=16−1 2x=15 Divide both sides by 2  x=  

15/2

HOPED THIS HELPED :))

​  

Answer:

3 qt

Step-by-step explanation:

Let's stick to one unit to facilitate things. I'm going to use quarts as the unit.

1 gal = 4 qt

Initial value = 3 gal 2 qt = 14 qt

Change = 2 gal 3 qt = 11 qt

14 qt - 11 qt = 3 qt