Answer:
O sistema de coordenadas cartesianas é usado para visualizar pontos em um gráfico, mostrando as distâncias dos pontos em dois eixos. O sistema de coordenadas cartesianas é um plano bidimensional com um eixo horizontal, conhecido como eixo x, e um eixo vertical, conhecido como eixo y.
Step-by-step explanation:
Whoops lol. The answer is 8b³ / c³. Screwed up my work :/
(2b/c)³
= (2bc⁻¹)³
= (2)³ * (b)³ * (c⁻¹)³
= 8b³c⁻³
= 8b³ / c⁻³
Answer:
x/y = 88/7
Step-by-step explanation:
x+y=19
x+3y=12y+5
First rewrite second equation as:
x +3y-12y = 5
Combine like terms:
x-9y = 5
Now you have:
x+y=19
x-9y = 5
Elimination method Subtract 2 equations:
10y = 14 Divide both sides by 10
y = 14/10 = 7/5
Plug in y in any given equation and calculate x:
x+ 7/5 = 19 Subtract 7/5 from 19
x = 88/5 = 17 3/5
x/y = 88/5 : 7/5
Answer:
no n 16
Step-by-step explanation:
cost for 3 pencils, a hat, and 2 binders
= 3*0.3+14.5+2*3.2
= $21.8 > $20
so estimate not good
5/0.3=16.6....
so she can buy 16 pencils
Using the Pythagorean theorem the length of x is 15.6 cm rounded to the nearest tenth.