Answer:
(-2, 10]
Step-by-step explanation:
Answer:
17/6
Step-by-step explanation:
Answer:
correct answer comes out to be option D
Step-by-step explanation:
sample mean (μ) = $150
standard deviation (σ) = $20
for about 95% of monthly food expenditure are between
= μ - 2 σ , μ + 2 σ
= $150 - 2 × $20 , $150 + 2 × $20
= $110 , $ 190
so, the range comes out to be in between $110 and $ 190.
Hence, the correct answer comes out to be option D.
Answer:
i think.c) is correct answrr
Finding the axis of symmetry.
1) Identify a, b, and c in the equation
f(x) = 4x² - 1 ⇒ a = 4 ; b = 0 ; c = -1
g(x) = x² - 8x + 5 ⇒ a = 1 ; b = -8 ; c = 5
h(x) = -3x² - 12x + 1 ⇒ a = -3 ; b = -12 ; c = 1
2) Formula of the axis of symmetry
x = -b/2a
f(x) ⇒ x = -0/2(4) = 0
g(x) ⇒ x = -(-8)/2(1) = 8/2 = 4
h(x) ⇒ x = -(-12)/2(-3) = 12/-6 = -2
Rank from least to greaters: -2, 0, 4 ⇒ h(x) ; f(x) ; g(x) CHOICE D