Na aula de matemática o professor anotou na lousa : A=-2,C=3 e B=1,qual das equações abaixo corresponde a essa anotação? a)2x^2-x+1=0
b)3x+1=2x^2
c)X+3=2x^2
d)-2x^2=x+3

Por favor me ajudem preciso da resposta com o cálculo e a explicação

Which expression will have the same sum as 3_8 + 1/4?

Lucy and donavan measured the length of the school garden. lucys measurement is 11.3m and donavans measurement is 113 cm. could both be correct? explain

Consider a cube that has sides of length l. now consider putting the largest sphere you can inside this cube without any point on the sphere lying outside of the cube. the volume ratio -volume of the sphere/ volume of the cube is 1. 5.2 × 10−1 2. 3.8 × 10−1 3. 1.9 4. 2.5 × 10−1 5. 3.8