O gráfico mostra os valores em bilhões de reais que o Brasil investiu em saneamento básico (2010 a 2017), de acordo com os dados da Confederação Nacional da Indústria. Mostra, ainda, os valores do gasto ideal, numa projeção por ano, para o período de 2018 a 2033, visando a acelerar os investimentos do setor para levar a coleta e o tratamento de esgoto a toda a população. De um modo geral, tem sido amplamente divulgado pela mídia que, no ano de 2018, os investimentos foram aproximadamente 32% menores que os considerados como gasto ideal, de acordo com o gráfico. Calcule a) o valor que teria sido necessário para atingir o gasto ideal nos investimentos, em 2018, no setor. b) a média aritmética de investimento, em bilhões, referente aos anos de 2013 a 2016.

here you hope this .

step-by-step explanation:

hypotenuse = √(15² + 8²)

=  √(225 +64)

=  √(289) = 17

sin(x) = cos(y) = 8/17

they are identical so long as you are doing the sine of one angle and the cosine of the only other angle that isn't the right angle.

answer: b. f(x) = (x + 2)^3 (x^2 - 7x + 3)^4

step-by-step explanation:

polynomials always have as many roots as their order. this is a 4th order polynomial- hence 4 roots!

complex roots of polynomials always come in pairs. the quadratic equation has the "+/-" in that will alwaysgenerate m+ni amd m-ni, so 7-2i must be a root of this polynomial equation.

the order of the numerator and denominator are both 2. so the horizontal asymptote is y=a2/b2 =7

verticle asymptotes are the forbidden x-values. f(x) becomes undefined at x=-3 because this value will cause a zero denominator.

a graph of r(x) will have vertical asymptotes at ±1 because these values will make the denominator zero. so the domain of the function cannot include ±1.

you 're wlecome! : )

cretdit to source

b because it contains 40% of the possible results from the random list.  

0,1,2,3 v 4,5,6,7,8,9  

4 integers to 6 integers  

40% success vs 60% fail

step-by-step explanation:

i believe it is b and c. (side note, i got the same computer from k-12 lol i’m in 8th grade and this is my first year, will it get

step-by-step explanation: