Answer: N0. There are not enough teacher signatures.
<u>Step-by-step explanation:</u>
Total signatures needed: 
x 1200 = 150
Total signatures received: 150
********************************************************************
Teacher signatures needed: 
x 150 = 6
Teacher signatures received: 
x 150 = 4
<em>Side note: If there are 
student signatures then there are teacher signatures, because the student plus teacher signatures must equal 100%</em>
Solve it like a normal quadratic equation and take the root of the roots
x^4 + 10x^2 + 25 = 0
Δ = b² - 4.a.c
Δ = 10² - 4 . 1 . 25
Δ = 100 - 4. 1 . 25
Δ = 0
1 real root.
In this case, x' = x'':
x = (-b +- √Δ)/2a
x' = (-10 + √0)/2.1
x'' = (-10 - √0)/2.1
x' = -10 / 2
x'' = -10 / 2
x' = -5
x'' = -5
Now take the root of this roots
√-5 = i√5
The root of this equation is x = ±i√5
Answer:
$65,000
Step-by-step explanation:
The question asks to calculate the contribution margin for the month of March.
The contribution margin is mathematically calculated as the selling price per unit minus the variable cost per unit
According to the parameters in this particular question, the contribution margin is selling price - total variable cost = 160,000 - 95,000 = $65,000
Answer: 160.4040
Step-by-step explanation:
Here , the claim is "The standard deviation of pulse rates of adult males is more than 11 bpm." , i.e. 
We use Chi-square test statistic for the test statistic to test the standard deviations :
, where s= sample standard deviation , 
= population standard deviations and n = sample size.
As per given , n=153 , s= 11.3
Then, Required test statistic will be :
Hence, the value of the test statistic. = 160.4040
Answer:
A = 5808
P = 308
Step-by-step explanation:
Hope This Helps! :)
