Answer:
<em>x = 3 or x = -1</em>
Step-by-step explanation:
25^x = 5^(x^2 - 3)
<=> (5^2)^x = 5^(x^2 - 3)
<=> 5^(2x) = 5^(x^2 - 3)
<=> 2x = x^2 - 3
<=> x^2 - 2x - 3 = 0
<=> x^2 + x - 3x - 3 = 0
<=> x(x + 1) - 3(x + 1) = 0
<=> (x - 3)(x + 1) = 0
<=> x = 3 or x = -1
I hope this helps!
The median of his steps will be five thousand
Answer:
maybe A
Step-by-step explanation:
Answer:
Step-by-step explanation:
The average weight of a package of rolled oats is supposed to be at least 18 ounces
Null hypothesis: u >= 18
Alternative: u < 18
Using the t-test formula, we have
t = x-u/ (sd/√n)
Where x is 17.78, u = 18, sd = 0.41 and n = 18
t = 17.78-18 / (0.41/√18)
t = -0.22 / (0.41/4.2426)
t = -0.22/ 0.0966
t = -2.277
Since, this is a left tailed test, at a significance level of 0.05, the p value is 0.01139. Since the p value is less than 0.05, we will reject the null hypothesis and conclusion that the true mean smaller than the actual specification.
Answer:
8/4 or just 2
Step-by-step explanation:
3/4 + 1/2 + 3/4 = 4/8
but 4/8 simplified get you 2
