The answer is the first option: it has the same domain as the function f(x) = - √(-x).
The domain is the set of x-values for which the function is defined.
The square root function is defined only for zero and positve values.
- x is positive when x negative.
So the domain for - √(-x) and √(-x) are the same: x less than or equal to zero.
Answer:
15 and 5 hours.
Step-by-step explanation:
Call x the time taken by the first chap, and y the second.
Let's divide by 5 and play with the LHS of the first equation a bit:
we know how much x+y is ( first equation!) let's solve.
At this point it's easy to check that 
Answer:
x= -36/5, which is also -7.2
Step-by-step explanation:
you can solve this equation by multiplying both sides of the equation by -6/5
hope it helps
Hii mate____
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.________
here's your answer looking for⤵
This a similar triangle problem.
If you consider the two horizontal
sides (shadows) as a ratio 32/4
Consider the corresponding vertical sides
x and 8
32/4= x/8 Cross multiply
4x= 256
x = 64
Therefore the tree is 64 feet high.
_____
HOPE IT HELPS!! ☺☺☺✌✌
Answer:
a20 = -108
Step-by-step explanation:
53 - 62 = -9
44 - 53 = -9
35 - 44 = -9
Then the intervall is -9
The first number is 63
63 + (19*-9) = 63 - 171 = -108
