Answer:
The P-value is 0.04093 and critical value is −2.33.
Step-by-step explanation:
Given information:
Significance level, α=0.01
Test statistic of z = -1.74
Testing claim is p<0.6.
Null hypothesis :
Alternative hypothesis :
It means it is a left tailed test.
The P-value for a left-tailed test, for a significance level of α=0.01 is 0.04093.
The z-critical value for a left-tailed test, for a significance level of α=0.01 is −2.33.
Therefore the P-value is 0.04093 and critical value is −2.33.
<span>-4x + 10 = -5x + 18
-4x + 5x = 18 - 10
x = 8</span>
Answer:
Step-by-step explanation:
Looks like a whole lot of fun you got there... Okay.. so first you'd have to add up the two values on the left side by multiplying the top and bottom of the first by the denominator of the second and by multiplying the top and bottom of the second by the denominator of the first, like this (sorry for all the parentheses) :
[x(x-4)]/[(x+4)(x-4)] + [4(x+4)]/[(x+4)(x-4)]. now you can add them together:
[x(x-4)+4(x+4)]/[(x+4)(x-4)] then i'd try to combine the top:
x^2-4x+4x+16 or x^2+16, then i'd combine the bottom (since i just noticed something awesome here):
x^2-4x+4x-16 or x^2-16. This makes the left side look exactly like the right ( isn't that awesome!) This means x = 1!
