First, you would subtract 6 from both sides
-4x+6=-30
-6 -6
-4x=-36
Then divide both sides by -4 to get x by itself
-4x=-36
-4 -4
x=9
Hope this helps!
Answer:
Step-by-step explanation:
<em>Step 1: Define significance level</em>
In this hypothesis testing problem, significance levels α is selected: , the associated z-value from Laplace table:
Φ() = α -
=> =
<em>Step 2: Define null hypothesis (</em><em>) and alternative hypothesis (</em><em>)</em>
: rate of flu infection = 8.3% or 8.3/100 = 0.083
: rate of flu infection < 8.3% or 8.3/100 = 0.083
<em>Step 3: Apply the formula to check test statistic:</em>
with is actual sampling percent, is rate of flu infection of , is number of samples.
The null hypothesis will be rejected if
<em>Step 4: Calculate the value of K and compare with </em>
We have
=>This is good evidence to reject null hypothesis.
=> The actual rate is lower. (As states)
Hope this helps!
:)
I really don’t know but I know you
Answer:
=35
Step-by-step explanation:
3(3) ^2 + 2(4)
= 3(9) + 8
= 35
Where you see a, substitute with 3 and where you see b, substitute with 4
Just follow the steps above.
Answer:
x(x-5)(x-8)
or
x=5
x=8
Step-by-step explanation:
x(x^2-13x+40)
x(x-5) (x-8)