5x/6-5/12, x-1/12, x+1/12
Step-by-step explanation:
You set up the equation with 35/75 and you said that equal to X tan. You then take your calculator and type in 35÷75 and press the equal button. You then hit the second function button and then press tan and it will give you 25
Answer: 1) (-∞, -6) U (-3, ∞)
2) (-∞, -4) U (2, ∞)
3) (-∞, -3) U (8, ∞)
<u>Step-by-step explanation:</u>
Find the zeros. Since the a-value is positive, the curve will be positive to the left of the leftmost zero and to the right of the rightmost zero. + - +
←---|----|--→
1) y = x² + 9x + 18
y = (x + 3)(x + 6)
0 = (x + 3)(x + 6)
0 = x + 3 0 = x + 6 + -- +
x = -3 x = -6 ←------|-----------|--------→
-6 -3
Positive Interval: (-∞, -6) U (-3, ∞)
2) y = x² + 2x - 8
y = (x + 4)(x - 2)
0 = (x + 4)(x - 2)
0 = x + 4 0 = x - 2 + -- +
x = -4 x = 2 ←------|-----------|--------→
-4 2
Positive Interval: (-∞, -4) U (2, ∞)
3) y = x² - 5x - 24
y = (x + 3)(x - 8)
0 = (x + 3)(x - 8)
0 = x + 3 0 = x - 8 + -- +
x = -3 x = 8 ←------|-----------|--------→
-3 8
Positive Interval: (-∞, -3) U (8, ∞)
Answer:
y-intercept= 3/5
slope= - (2/5)
Step-by-step explanation:
To do this problem you have to convert standard form into slope-intercept
2x+5y=3---> y= - (2/5)x+3/5
From this, we could refer to the slope-intercept notation...
y=mx+b
m=slope
b=y-intercept
So...
Looking at this we get
y-intercept= 3/5
slope= - (2/5)
The first one is 4•7 I believe
