To convert temperatures in degrees Celsius to Fahrenheit, multiply by 1.8 (or 9/5) and add 32.
<span>Example: 30°C x 1.8 + 32 = 86°F</span>
Answer:
This simply means you add both functions. (f + g)(x) = f(x) + g(x). So the answer is -2x + -3x^2 - 7x = -3x^2 - 9x. please do not "carriage return" within question.
Simplifying the square of a complex binomial is done similarly to a purely real binomial, except that one was to remember the relation i² = -1.
Solving the equation (8 – 5i)<span>² is done below:
Rewriting </span>(8 – 5i)<span>²:
(8 - 5i)(8 - 5i) = 64 - 40i - 40i + 25i</span><span>²
Simplifying and applying </span><span>i² = -1</span><span>:
64 - 80i + 25(-1)
64 - 80i - 25
39 - 80i
From the choices, the answer is C. </span>
Answer:
Domain: [-2, 0)U(0, positive infinity)
Range: (negative infinity, -2)U(0, -2]
Step-by-step explanation:
Domain is the set of x-values that can be plugged in to get an output in a graph. In this case, no number lower than -2 can be used, so your domain has to be x ≥ -2. We also have a hole at our y-intercept that can't be used, so we have to include that in our answer as well using a union.
Range is the set of y-values that can be outputted by <em>x</em> in the graph. Since x ≥ -2, we know the output of -2 is 0, so no value goes above 0 as the graph is infinitely decreasing. We also have to address the hole issue in the range just like in the domain.