Question

Cполными ответами the length ofthis altitude is h and h=ab. which of the following is true? 1)i. ∆abc could be a right triangle.ii. angle c cannot be a right angle.iii. angle c could be less than 45°.2)in one month, alice-the-lawyer earns half of what her husband, bill-the-artist, earns in a year(12 months). together, the happy couple earns 168,000 dollars per year. what is alice’smonthly income in dollars? 3)if n is an integer, what is the remainder when 3x(2n+ 3)– 4x(2n + 2) + 5x(2n+ 1)– 8 isdivided by (x + 1)? 4)positive integer a has two different prime factors p and q (pinteger b is greater than a and the quotient a^2/b is an integer. how many possible valuesof b are there? 5)if () = √2 + 3(это выражение все под корнем) and () = ^2, for what value(s) of x does f(g(x)) = g(f((please approximate when needed)6)if f(x) = ax2 + bx + c and f (1) = 3 and f (–1) = 3, what will a + c be equal to?

Answer 1

Первый способ (метод разложений на множители)ответ: х = - 3. с производной.если х = -3, то функция и производная функции равна нулю. если х = 0, то у=27 и у'=0 - не подходит если х=-1, то у=32 и у'=0 - не подходит. следовательно ответ х = - 3.