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sarinaneedshelp01
02.10.2020 •
Mathematics
Evaluate if x = 2 and y = -4: x³ + y² *
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Ответ:
=24
Step-by-step explanation:
Evaluate for x=2,y=−4
23+(−4)2
23+(−4)2
Ответ:
2. Again for the domain, we can't have a 0 or lower in the square root, so x is greater than or equal to -4/3. With the range, you don't want a zero, so anything higher than a -5. so y is greater than or equal to -5. So the final option is the correct answer.
3. sqrt(363) - 3sqrt(27)
sqrt(27) = sqrt(3^3) = 3sqrt(3)
sqrt(363) - 3 * 3sqrt(3)
sqrt(363) = sqrt( 3 * 11^2) = 11 sqrt(3)
11 sqrt(3) - 3 * 3sqrt(3)
11 sqrt(3) + -9 sqrt(3)
2sqrt(3)
So the simplified version is 2sqrt(3)