Answer:
Step-by-step explanation:
10 yards in 5 hours is 2 yards an hour
8*2=16 yards in 8 hours
Answer:
-19
Step-by-step explanation:
12x - 6 + 6 = 10x - 40 + 2
12x - 10x = -40 + 2 + 6 -6
2x = -38
x = -38/2 = -19
The two truths are:
x is a negative number (x = -19)
x+5>x (if x is positive, is true; if x is negative, is also true)
The one lie is:
3x > 2x (if x is negative, the expression will be 3x < 2x)
Answer:
4 * a = 4
a = 1
b * 6
4 * 6
24b
2 a * 4 = 8
b * 5 = c *7
7 * 5 = 35
b = 17.5
C = 17.5
17.5+17.5 = 17.5 * 2 +4a+ b5
So your answer is 54a
Step-by-step explanation:
Answer:
two real roots
Step-by-step explanation:
y = -2x^2 + 9x - 7
This is in the form
ax^2 +bx+c
a = -2 b = 9 c = -7
The discriminant is
b^2 -4ac
(9)^2 - 4(-2) (-7)
81 - 56
25
Since the discriminant is greater than zero, there are two real roots
