Answer:
t = 7 + 3i
Step-by-step explanation:
(t-7)^2 + 18 = 9
(t-7)^2 = 9 - 18
(t-7)^2 = -9
(t-7) = sqrt(-9) = |3| sqrt(-1)
t = 7 + 3i
Answer:
19
Step-by-step explanation:
1. Subtract and divide. 9 - 3 is 6, and 6 divided by 1/3 is 18, because whenever you divide by a fraction, you multiply by the reciprocal.
2. Add. 18 + 1 is 19.
Since the domain is all positive numbers besides anything under 2, this tells us two things. The function has to be a square root and the radical has to equal 0 when you plug in 2.
Square root of (x - 2) would work, I’d imagine
<span>
since y = –1.5x² its domain is R=] -infinity, infinity[
the inverse of y
</span>–1/1.5 y = x² , and x = sqrt ((–1/1.5) y) , and f^-1 (x) = sqrt ((–1/1.5) x)
its domain is –1/1.5) x>=0, so x<=0,
from where, the range of y = –1.5x² is the interval ]-infinity, 0]