$513 (amount earned) / 54 (amount of hours) = $9.50 (hourly rate)
to check:
$9.50 (hourly rate) x 54 (amount of hours)
= 513 (amount earned)
hope this helps :)
Not easy:
- 4 < x^4 + 4x^2 ---> 0 < x^4+4x^2+4 = (x^2+2)^2, so it is always positive. Always satisfied. Curious ...
Now the other one:
x^4+4x^2<21 --> x^4+4x^2-21 < 0 --> (x^2+2)^2 - 25 < 0
(x^2+2)^2<25 ->>> x^2+2 < 5 ---> x^2 <3,
So -sqrt(3)<x<sqrt(3) is the answer! Brainliest?
<span>1.465 is the correct answer I believe.</span>
Answer:
n + n+2 + m+4 = 87
I got this answer.....hope it may helpful