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stellarik [79]
3 years ago
11

Step by step plz 2x^2 + x - 3

Mathematics
1 answer:
Aleks04 [339]3 years ago
7 0

Answer:

x = 1 or x = -3/2

Step-by-step explanation:

Solve for x over the real numbers:

2 x^2 + x - 3 = 0

The left hand side factors into a product with two terms:

(x - 1) (2 x + 3) = 0

Split into two equations:

x - 1 = 0 or 2 x + 3 = 0

Add 1 to both sides:

x = 1 or 2 x + 3 = 0

Subtract 3 from both sides:

x = 1 or 2 x = -3

Divide both sides by 2:

Answer: x = 1 or x = -3/2

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Mrs. Hartka is packaging soup in cylindrical cans. She calculated the volume of soup to be 325 cubic centimeters per can. The ar
GarryVolchara [31]

The height of each soup can is 4.138 centimeters, if the the volume of soup to be 325 cubic centimeters per can and the area of the base of each can is 25 square centimeters.

Step-by-step explanation:

The given is,

                  The volume of soup to be 325 cubic centimeters per can.

                  The area of the base of each can is 25 square centimeters.

Step: 1

                 Formula to calculate the volume of cylidrical soup can,

                                     Volume, V = Bh............................(1)

               Where, B - Base area of cylidrical soup can

                            h - Height of cylindrical soup can

Step: 2

            From the given values,

            Base area, B = 25 square centimeters

                Volume, V = 325 cubic centimeters

            Equation (1) becomes,

                          325 = ( 25 ) (h)

                               h = \frac{325}{25}

                                  = 13 centimeters

           Height of cylindrical soup can, h = 13 centimeters

Result:

            The height of each soup can is 4.138 centimeters, if the the volume of soup to be 325 cubic centimeters per can and the area of the base of each can is 25 square centimeters.

5 0
4 years ago
Una compañía sabe que si produce "x" unidades mensuales su utilidad "u" se podría calcular con la expresión:
belka [17]

Answer:

Δf(u) /Δx  = 92,8    ( razón de cambio promedio)

Step-by-step explanation:

La expresión de la utilidad de la empresa u(x) en función de la cantidad de unidades producidas "x" es:

u(x) = 0,04*x² + 44*x  -4000

Entonces la razón de cambio promedio en un intervalo (a ; b)  en este caso ( 620 ;  600 ) viene dada por la expresión:

Δf(x)/ Δx  =  [ f(b)  -  f(a) ]/( b - a )

en donde  f(b)  y f(a) se obtienen por sustitución de los valores a y b es decir  600 y 620 respectivamente en la función f(x) = u(x) entonces

Δf(u) /Δx  =  [ u(b)  -  u(a) ]/( b -a )        (1)

u(b) =  0,04*(620)² + 44*(620) - 4000

u(b) = 15376 + 27280 -4000

u(b) = 2656 unidades

u(a)  = 0,04* (600)²  +  44* 600  - 4000

u(a)  = 14400  +  26400  - 4000

u(a) = 800

Sustituyendo esos valores en la ecuación 1

Δf(u) /Δx  =  2656 - 800 / 620 - 600

Δf(u) /Δx  = 92,8

5 0
4 years ago
A bug walking on the circular rim of a flower
Salsk061 [2.6K]
I think you have to multiply or divide, I don't remember
4 0
3 years ago
Write the sentence as an equation.<br><br> v equals 321 less than the quantity v times 253
Nimfa-mama [501]
V= 253v - 321 i think
4 0
3 years ago
On Monday, stock XYZ opened at $56.86. On Friday, it closed at $64.92. What is the rate of change of stock XYZ for this particul
9966 [12]

Hello, I could be wrong so I am so sorry if I am but I believe it’s B. Sorry if I am wrong though.

3 0
3 years ago
Read 2 more answers
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