Answer:

Step-by-step explanation:

Step-by-step explanation:
A + b
Putting value of a and b
9 + (-24)
9 - 24
= - 15
What is the domain of the function y=3 in x graphed below?
Domain is x>0, ln (0) is undefined and there is no negative ln.
-2x + 6y = -34
-x + 3y = -17
x = 3y +17
Sub this into 1st eqn
5(3y + 17) + 2y = 21
15y + 85 + 2y =21
17y = -64
y = -3.7647 (to 5 sig. fig.)
y = -3.8 (to nearest tenth)
Sub y = -3.7647 into 2nd eqn
x = 3(-3.7647) +17
x = 5.7 (to nearest tenth)
Answer: 2hrs?
Step-by-step explanation: 3-2=1+1 hour she took alone = 2hrs