In order to get this answer you see that you are adding a negative to x in the first part then multiplying it by 2. Second, you add y+1 then multiplying it by 2. You get the radius of 25 which equals 5 miles. Look at the graph to also check your answers to the problem.

4 0

4 years ago

Read 2 more answers

Please help me please will give brainliest do only 23 ,25, by factoring

yaroslaw [1]

9514 1404 393

Answer:

23) x = ±3i, ±√2

26) x = 4/3, (-2/3)(1 ± i√3)

Step-by-step explanation:

23) Put in standard form to make factoring easier.

x^4 +7x^2 -18 = 0

(x^2 +9)(x^2 -2) = 0 . . . . factors in integers

Using the factoring of the difference of squares, you can continue to get linear factors in complex and irrational numbers:

(x -3i)(x +3i)(x -√2)(x +√2) = 0

x = ±3i, ±√2

___

26) This will be the difference of cubes after you remove the common factor.

81x^3 -192 = 0

3(27x^3 -64) = 0

(3x -4)(9x^2 +12x +16) = 0 . . . . . factor the difference of cubes

The complex roots of the quadratic can be found using the quadratic formula.

x = (-12 ±√(12^2 -4(9)(16)))/(2(9)) = (-12 ±√-432)/18 = -2/3 ± √(-4/3)

Then the three solutions to the equation are ...

x = 4/3, (-2/3)(1 ± i√3)

5 0

3 years ago

Nathaniel can't remember exactly how many cupcakes Haley and Virgil made for the Halloween party but he did remember that all to

amid [387]

Answer:

Haley = 62

Nathaniel = 48

Virgil = 46

Step-by-step explanation:

According to question ,

Haley + Virgil + Nathaniel had made total of = 156 cupcakes ..... 1

Haley + Nathaniel had made total of = 110 cupcakes ..... 2

Virgil + Nathaniel had made total of = 94 cupcakes ..... 3

So, from above three equations ,

From eq 2 and 3

(Haley + Nathaniel) - (Virgil + Nathaniel ) = 110 - 94

So, Haley - Virgil = 16 ..... 4

From eq 1 and 4

(Haley + Virgil + Nathaniel ) + ( Haley - Virgil ) = 156 + 16

2 Haley + Nathaniel = 172 ...... 5

From eq 2 and 5

( 2 Haley + Nathaniel ) - ( Haley + Nathaniel ) = 172 - 110 = 62

so, Haley = 62

In eq 5 put the Haley make value

so, Nathaniel = 172 - ( 2 × 62)

Nathaniel = 48

In eq 4 , put the value of Haley make value

So, Virgil = Haley - 16

Virgil = 62 - 16 = 46

Hence the value of all the three persons make is

Haley = 62

Nathaniel = 48

Virgil = 46 Answer

4 0

3 years ago

-5x+6y=-90 three ordered pair solution

Lilit [14]

(0,-15) (1,-85/6) (2,-40/3)

5 0

3 years ago