Step-by-step explanation:
f(x) = x² - 3x + 5
f(-2) = (-2)² - 3.(-2) + 5
f(-2) = 4 + 6 + 5
f(-2) = 15
Answer:
(-3, 2)
Step-by-step explanation:
{3x=7y=5
{5x-2y=-19
solve....
maybe it was 3x + 7y = 5
and 5x - 2y = -19
2*(3x + 7y = 5)
7*(5x - 2y = -19)
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6x + 14y = 10
35x -14y = -133
41x = -123
x = -3
y = ...
5*(-3) - 2y = -19
-15 - 2y = -19
2y = 4
y = 2
(-3, 2)
Step-by-step explanation:
1.Get the equation in the form y = ax2 + bx + c.
2.Calculate -b / 2a. This is the x-coordinate of the vertex.
3.To find the y-coordinate of the vertex, simply plug the value of -b / 2a into the equation for x and solve for y. This is the y-coordinate of the vertex.
Arguably, all of them are at least somewhat biased, but the most biased would be <span>surveying people 15 to 20 years old leaving a concert </span> because being at a concert would be highly correlated with liking the type of music played at that concert.
Answer:
a = 145
b = 35
c = 145
d = 70
e = 70
f = 110
g = 55
h = 125
i = 55
j = 50
k = 70
l =110
m = 50
n = 60
o = 70
p = 23
q = 89
r = 68
s = 157
t = 112
u = 48
v = 132
w = 132
x = 48
y = 48
z = 132
A = 48
B = 94
C = 86
D = 94
E = 47
F = 133
Step-by-step explanation:
I'm fairly certain these are all correct... like 82% sure
