Step-by-step explanation:
1. h(x)=3(x-4)(x+5)
=> x-intercept of 4 when y = 0
2. f(x)=-5 - 4
=> the vertex at (-3,-4) because the function is in vertex form
3. g(x)=-4 + 5
=> the vertex at (3, 5) because the function is in vertex form
4.. q(x)=5(x+4)(x-3)
=> x-intercept of 3 when y = 0
5. p(x)=4(x-3)(x-5)
=> x-intercept of 5 when y = 0
Hope it will find you well.
Answer:
0.2172<x<0.2668
Step-by-step explanation:
The formula for calculating the confidence interval is expressed as;
CI = xbar ± (z*s/√n)
xbar is the average = 0.242ppm
z is the z score at 95% confidence = 1.96.
s is the standard deviation = 0.04pm
n is the sample size = 10
substitute the values into the formula;
CI = xbar ± (z*s/√n)
CI = 0.242 ± (1.96*0.04/√10)
CI = 0.242 ± (1.96*(0.04/3.1623))
CI = 0.242 ± (1.96*(0.01265))
CI = 0.242 ± (0.02479)
CI = (0.242-0.02479, 0.242+0.02479)
CI = (0.2172, 0.2668)
Hence a 95% confidence interval for the mean mercury content of coal from this source is 0.2172<x<0.2668.
Answer:
1080
Step-by-step explanation:
just multiply all the numbers to get the area of the whole shape.
Answer:
-19, -8, 0, 1/4, 1/2 is the correct order