Answer:
m = 3/2
b = -3
Equation:
y = 3/2x - 3
Step-by-step explanation:
m = rise/run
rise = 3
run = 2
b = y-intercept
y-intercept is -3
Equation: y = mx + b
y = 3/2x + (-3)
y = 3/2x - 3
Answer:
768000
Step-by-step explanation:
From 1900 to 2020 = 120 means that it doubles 4 times ( once every 30 years)
=> 48000 * 2 ^ 4 = 768000
Answer:
2 real solutions
Step-by-step explanation:
To determine the nature of the solutions use the discriminant
Δ = b² - 4ac
• If b² - 4ac > 0 then 2 real solutions
• If b² - 4ac = 0 the 2 real and equal solutions
• If b² - 4ac < 0 then no real solutions
Given
x² + 9x + 20 = 0 ← in standard form
with a = 1, b = 9, c = 20, then
b² - 4ac
= 9² - (4 × 1 × 20 ) = 81 - 80 = 1
Since b² - 4ac > 0 then there are 2 real solutions
Answer:
C) 22 R9
Step-by-step explanation:
