Which statement describes the graph of this polynomial function? Rx) = x + x - 2x² A) The graph crosses the x-axis at x = 2 and x=-1 and touches the x-axis at x = 0. B) The graph touches the x-axis at x = 2 and x=-1 and crosses the x-axis at x = 0. C) The graph crosses the x-axis at x = -2 and x = 1 and touches the x-axis at x = 0. D) The graph touches the x-axis at x = -2 and x = 1 and crosses the x-axis at x = 0.​

sum= when you add is how much the whole amount is

distance= when you use angles and it means how far it goes

step-by-step explanation:

answer: 140

step-by-step explanation:

so just add all then it will be your answer but i am not pretty sur eif it is but hope this i am here to people

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

54.864 meters

step-by-step explanation: