Answer:
15.50x5+40.50x2 = $158.50
Step-by-step explanation:
She will buy 5 earrings and 2 pairs of necklaces
(15.50 x 5) + (40.50 x 2)
Hope this helps
Mark as brainllest
"When you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. f(x) = x2 and f(x + h) = (x + h) Therefore, the slope of the secant line between any two points on this function is 2x + h."
Answer:
Lesser x is -13.
Greater x is 1.
Step-by-step explanation:
We have the function:
And we want to find the zeros of the function.
So, set f(x) to 0 and solve for x:
Add 49 to both sides:
Take the square root of both sides. Since we're taking an even root, we will need plus/minus:
Subtract 6 from both sides:
Evaluate for each case:
Case 1; 7 is positive:
Case 2; 7 is negative:
So, our zeros are:
Our lesser x is -13, and our greater x is 1.
And we're done!
Answer:
1-
2X + 3Y = 330
2-
X + Y + Z = 3890
3-
1/3X + 2/3X = X
4-
X + Y = 27
Step-by-step explanation:
Para plantear ecuaciones para las siguientes situaciones se deben realizar los siguientes razonamientos lógicos:
1- Juan compró 2 panchos y 3 hamburguesas y le cobraron $330.
Panchos = X
Hamburguesas = Y
2X + 3Y = 330
2- Realizo un pago de la factura de luz, agua y cable en total me cobran $3890.
Luz = X
Agua = Y
Cable = Z
X + Y + Z = 3890
3- Un padre reparte un dinero X que recibió entre su esposa y su hijo, a su esposa le da el doble que al hijo.
Esposa = 2/3X
Hijo = 1/3X
1/3X + 2/3X = X
4- En el salón de clase hay 27 alumnos entre mujeres y varones.
Mujeres = X
Varones = Y
X + Y = 27
Answer:
She wronged in V1.
Step-by-step explanation:
She write wrongly for the values of length and height. The length of V1 should be 7ft + 4ft which is 11ft and the height is 5ft.
So the volume of V1 is :
V1 = 2ft × 11ft × 5ft
= 110 ft³