The answer is n=3. 4 also has a variable in front of it so (4n) which shows you have to multiply. 2 + 6 give you 8 but 2x3+6 gives you 12, 4 x 3 also gives you twelve so your answer is n=3
Answer:
Yes we reject the null hypothesis
Step-by-step explanation:
From the question we are told that
The sample size is
The population mean is
The sample mean is
The standard deviation is
The level of significance is
For a two-tailed test
The null hypothesis is
The alternative hypothesis is
Generally the test statistics is mathematically represented as
=>
=>
The p-value for the two-tailed test is mathematically represented as
From the z-table
Given that Then we reject the null hypothesis
<h2><em>750 gallons of water flows through the pipe in = 50 seconds.
</em></h2><h2><em>350 gallons of water will flow in =50/750 x 330= = </em><u><em>22 seconds.</em></u></h2>
Answer:
The equation of the line joining the points (-1,-1), (1,-1) is
y +1 =0
Step-by-step explanation:
<u><em>Step(i):</em></u>-
Given curve y = 2 x² -3 , x = -1 and x=1
substitute x =-1 in given curve y = 2 x² -3
y = 2 (-1 )² - 3
y = 2 -3
y = - 1
First point A( -1 ,-1)
substitute x =1 in given curve y = 2 x² -3
y = 2 (1)² - 3
y = -1
Second point B( 1 , -1 )
<u><em>Step(ii):-</em></u>
A( -1, -1 ) and B( 1,-1)
slope of the line
The equation of the straight line passing through the point ( -1,-1 ) having slope m =0
y - y₁ = m ( x - x₁ )
y - (-1) = 0( x-(-1)
y +1 =0
The equation of the line joining the points (-1,-1), (1,-1) is y +1 =0
Answer:
A=4
Step-by-step explanation:
you use the Pythagorean Theorem,
a triangle having a Leg b length of 3 and a Hypotenuse c length of 5 would have a Leg a length of 4.
Here is how I solved for Leg a using the Pythagorean Theorem.
Leg a = sqrt[ (Hypotenuse c)2 - (Leg b)2 ]
Leg a = sqrt[ (5)2 - (3)2 ]
Leg a = sqrt[ 25 - 9 ]
Leg a = sqrt[ 16 ]
Leg a = 4