Erin bought 8 pounds of apples, and Katie bought 5.
8-5=3
8+5=13
Answer:
x = -2
Step-by-step explanation:
The coefficients of this quadratic are 1, 4 and 3.
-b -4
The axis of symmetry is x = --------- = ---------- = -2 => x = -2
2(a) 2(1)
Answer:
To plot an inequality, such as x>3, on a number line, first draw a circle over the number (e.g., 3). Then if the sign includes equal to (≥ or ≤), fill in the circle. If the sign does not include equal to (> or <), leave the circle unfilled in.
Step-by-step explanation:
Answer:
$5,400
Step-by-step explanation:
x = number of months
150x
How many months are in a year?
12
How many month are in three years?
12 * 3 = 36
Put in 36 for x.
150 * 36 = 5,400
Answer:
The probability is 0.6796
Step-by-step explanation:
Given
Population Mean - 100
Population Standard Deviation - 25
As we know
z = x-μ/σ, where:
z is the standard score
x is the raw score
μ is the population mean
σ is the population standard deviation
Z value for mean of sample = 95
z1 = -100+95/25 = -5/25 = -0.2
P value for Z = -0.2 is 0.2912
Z2 = 100-105/25 = 0.2
P(z > 0.2 = 1 - P(z ≤ 0.2) = 1 - 0.0294 = 0.9706
P(-0.2 < z < 0.2) = 0.9706 - 0.2912= 0.6796
The probability is 0.6796
