Answer:
(-5, 2)
Step-by-step explanation:
<u>plug x into the equation x - 5y = -15</u>
-5 - 5y = -15
add 5 to both sides: -5y = -10
divide by -5: y = 2
Answer: Try putting the positive number and then the negative number after the and like the example.
Step-by-step explanation:
Your answers are right, it could be a glitch.
Answer:
18
Step-by-step explanation:
replace x with -3 in the given function :
f(x) = x2 - 2x + 3 ➡ f(-3) = (-3)^2 - 2×(-3) +3 ➡ 9 + 6 + 3 = 18
Step-by-step explanations:
Since the domain is a set of all real numbers, all the expression are with respect to real numbers.
a. 3 x,y : x/y < 1 ∧ y/x < 1
b. ∀x > 0, 1/x > 0
c. 3 x,y : x + y = xy
d. ∀x > 0 ∧ y > 0, x/y > 0 ∧ y/x > 0.
3 means "there exists"
∀ means "for every value of"
∧ means "and"
-130+240-56=54
$54 is the answer.
Hope this helps.