Solve the system of equations by the substitution method.
X + 8y = 21
3x + 5y = 6

The solution is .(Simplify your answer. Type and ordered pair)

The notation according to the set will be "[tex][5, + \infty) \cup (- \infty , 7][/tex]".

Let,

∴ [tex]x \ \epsilon \ R[/tex]

Now,

hence,

→ [tex]x \leq 7 \rightarrow (- \infty, 7][/tex]

→ [tex]x \geq 5 \rightarrow [5, + \infty)[/tex]

then,

The notation will be:

→ [tex][5, + \infty) \cup (- \infty , 7][/tex]

Thus the above solution is appropriate.

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Answer and explanation:

Assuming the frog jumps from -10 for all jumps, if the frog decides to make all 4 jumps then :

8 units jump= -2 or -18

4 units jump= -6 or -14

2 units jump= -8 or -12

1 unit jump = -9 or -11

If the frog decides to make one jump then skip the others then:

Either it makes 8 units jump= -2 or -18

Or 4 units jump= -6 or -14

Or 2 units jump= -8 or -12

Or 1 unit jump = -9 or -11

If it decides to make 2 jumps and skip the others then:

Either it makes 8 units jump= -2 or -18

and 4 units jump= -6 or -14

Or 2 units jump= -8 or -12

and 1 unit jump = -9 or -11

Or any other mix of units of jump twice

If it decides to make 3 jumps and skip the others then:

Either it makes 8 units jump= -2 or -18

and 4 units jump= -6 or -14

and 2 units jump= -8 or -12

Or 1 unit jump = -9 or -11

and 4 units jump= -6 or -14

and 2 units jump= -8 or -12

Or any other mix of 3 jumps

If it decides to make no jump at all then the frog would remain at -10

Answe

8x^2-26x+6

Step-by-step explanation:

Answer:

option d is correct answer

Step-by-step explanation:

-18x+12

Answer:

-2/5-4y

Step-by-step explanation:

multiply each side by -1/2

Answer:

2(z+3)

Step-by-step explanation:

Answer:

787.5

Step-by-step explanation:

23×14=322

A=a+b /2h=15+34 /2·19=465.5

322+465.5=787.5

Answer:

x=92

Step-by-step explanation:

those to angles are supplementary meaning that they add up to equal 180

so you set up the equation 180=x+x-4

180=2x-4

step 1 add 4 to each side

184=2x

step 2 divide each side by 2

x=92

so the angles equal 92 and 88

Answer:

92°

Step-by-step explanation:

180 degrees on a straight line.

2x - 4 = 180

2x = 184

X = 92°

14.57   i just took the quiz                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        

Answer:

Answer is 1

2 divided by 2

Step-by-step explanation:

Answer: 10.375

Step-by-step explanation:

mean = average

Finding the average, means you need to add all the numbers up, and then divide it by the total amount.

-------------------------------------------------------------------------------

First Step: add them up

19+2+14+8+11+10+4+15=83

Second Step: count the amount of numbers

8 numbers in total

Third Step: divide the total amount over numbers

83/8=10.375

Hope this helps!! :)

Please let me know if you have any questions

[tex]\huge\text{Hey there!}[/tex]

[tex]\large\text{When you hear the word \underline{MEAN} think of the question asking for the}\\\large\text{\underline{AVERAGE}. When we find the mean/average we have to ADD}\\\large\text{all of your TERMS, then DIVIDE the total numbers you have!}[/tex]

[tex]\bold{Set: 19,2,14,8,11,10,4,15}\\\bold{Add: 19 + 2+14+8+11+10+4+15}\\\bold{Divide: 8\ because\ thats\ the\ total\ number\ we\ have\ in\ your\ given\ set}[/tex]

[tex]\bold{Equation: \dfrac{19 + 2+14+8+11+10+4+15}{8}}\\\\\bold{Numerator\rightarrow19+ 2+14+8+11+10+4+15}\\\bold{19+2=21}\\\bold{21+14+8+11+10+4+15}\\\bold{21+14=35}\\\bold{35+8+11+10+4+15}\\\bold{35+8=43}\\\bold{43+11+10+4+15}\\\bold{43+11=54}\\\bold{54+10+4+15}\\\bold{54+10=64}\\\bold{64+4+15}\\\bold{64+4=68}\\\bold{68+15}\\\bold{=83}[/tex]

[tex]\bold{Equation: \dfrac{83}{8}}\\\\\large\text{SOLVE above and you will have your answer!}\\\bold{\dfrac{83}{8}=10.375}\\\boxed{\boxed{\large\text{Answer: your MEAN is \bf{10.375}}}}}\huge\checkmark[/tex]

[tex]\large\textsf{Good luck on your assignment and enjoy your day!}[/tex]

~[tex]\frak{Amohitrite1040:)}[/tex]

Step-by-step explanation:

be62vw6vwebe6e6be6ev6eb6eb6eb7eb7eebe73

Answer:

y = 2/3

Step-by-step explanation:

14 = 6(2) + 3y

14 = 12 + 3y

2 = 3y

y = 2/3

To find the area of a regular polygon, all you have to do is follow this simple formula: area = 1/2 x perimeter x apothem.

you can watch this!!

https://youtu.be/n1YKOggLjUQ

Answer:

C

Step-by-step explanation:

x^2/12.25 + y^2/4 = 1

A carpenter designs a tabletop in the shape of an ellipse 7 feet long and 4 feet wide then, the equation of that ellipse would be [tex]\dfrac{ x^2}{12.25} + \dfrac{ y^2}{4} = 1[/tex]

Suppose that the major axis is of the length 2a units, and that minor axis is of 2b units, and let the ellipse is centered on (h,k) with a major ellipse parallel to x-axis, then the equation of that ellipse would be:

[tex]\dfrac{(x-h)^2}{a^2} + \dfrac{(y-k)^2}{b^2} =1[/tex]

Coordinates of its foci would be: [tex](h \pm c, k)[/tex]  where   [tex]c^2 = a^2 - b^2[/tex]

If its major axis is parallel to y-axis, then,

Coordinates of its foci would be: [tex](h , k\pm c)[/tex] where [tex]c^2 = a^2 - b^2[/tex]and its equation would be:

[tex]\dfrac{(x-h)^2}{b^2} + \dfrac{(y-k)^2}{a^2} =1[/tex]

A carpenter designs a tabletop in the shape of an ellipse 7 feet long and 4 feet wide.

The carpenter sketches a drawing of the tabletop on a coordinate plane.

The center of the tabletop is at the origin, the length falls along the x-axis, and the width falls along the y-axis.

then, the equation of that ellipse would be:

[tex]\dfrac{ x^2}{12.25} + \dfrac{ y^2}{4} = 1[/tex]

Learn more about ellipse here:

https://brainly.com/question/19881832

#SPJ2

Answer:

x=3

Step-by-step explanation:

Answer:

50 dollars

Step-by-step explanation:

228-178=50

Answer:

please give me more context so I can help you more

Answer:

5). 4×4×3

6). 5×2×2

7). 11×3×2

8). 17×2

Step-by-step explanation:

These are the prime factorizations.

Step-by-step explanation:

4*-2 + 3*-3 = -8 - 9= -17

4*1 +3*-2= 4-6= -2

-2*-2 + 3*-3= 4-9= -5

-2*1 + 3*-2= -2 -6 = -8

-4*-2+6*-3=8-18= -10

-4*1+6*-2=-4-12= -16

the result matrix is

-17 -2

-5 -8

-10 -16

Im bad at math too! we can be horrible at math together

Answer:

Si un electrón no consume, ni libera energía el átomo se encuentra en

Step-by-step explanationSi un electrón no consume, ni libera energía el átomo se encuentra en:

Answer:

1.) 1   2.) [tex]\frac{1}{4^{2} }[/tex]   3.)[tex]\frac{7b^{3}}{a^{5}}[/tex] 4.)[tex]\frac{9a^{7}}{b^{6}}[/tex]  5.)[tex]\frac{1}{5^{2}}[/tex] 6.) [tex]\frac{8x^{3}}{27}[/tex]

Step-by-step explanation:

Answer:

(0,5)

Step-by-step explanation:

Use the midpoint formula to find the midpoint of the line segment.

(x1+x2/2,y1+y2/2)

Substitute in the values for (x1,y1)and (x2,y2).

(-2+2/2,[tex]\frac{4+6}{2}[/tex])

Cancel the common factor of −2+2 and 2.

(−1+1, [tex]\frac{4+6}{2}[/tex])

Add −1 and 1.

(0,[tex]\frac{4+6}{2}[/tex])

Cancel the common factor of 4+6 and 2.

(0, 2+3)

Add 2 and 3.

(0,5)

(Sorry, some of the fractions weren't working)

Answer:

57/100

Step-by-step explanation:

57/100

Fifty-seven(57) over one-hundred(100), or 57 more than 100 would be 157!

Hope this helps, if not, comment below please!!!

:L

Answer:

1000

Step-by-step explanation:

the prefix kilo means 1000

Answer:

0≤x≤15

Step-by-step explanation: