Answer: x=9
Step-by-step explanation:
7x=2x+45
5x=45
x=9
so, it boils down to the definition of a polynomial.
a polynomial is just a term with coefficients and variables at whatever power, however, it cannot be a rational, namely a fraction.
if we choose any positive exponent or that "x", we'll....let's pick say 3 and 7 just so you see what happens.
so, if we give it any positive exponent, we'll end up with a rational, however if we give it a negative, like say -9,
Answer:
Step-by-step explanation:
that is how you weould set it up.
thats what you'd do if you added or subtracted what was in the perenthesis
rember that you have to put it back into square root
and that would be your final answer!
part A)
we know that for every 1000 ft the temperature drops by 1.3.
so after 1000ft up it went down by 1.3(1)
2000ft up it went down by 1.3(2) or 2.6
3000ft up it went down by 1.3(3) or 3.9
after 10000 up it went down by 1.3(10) or 13.
part B)
well, the current temperature on the ground where the plane is sitting is -2.8°F, after 10000ft it dropped by 13°, so the temperature will just be -2.8 - 13 = -15.8°F.