I believe that the answer B,D,and E
Answer:
416
Step-by-step explanation:
Standard deviation is 2.6
Margin error for the problem is 0.25
Probability 95%, that means thet the siginficance level α is 1 – p
α = 1 – 0.95 = 0.05
margin of error (ME) can be defined as follows
ME = Z(α/2) * standard deviation/ √n
Where n is the sample size
Z(0.05/2) = Z(0.025)
Using a z table Z = 1.96
Now, replacing in the equation and find n
.25 = 1.96 * 2.6/ √n
0.25 = 5.096/√n
√n = 5.096 /0.25
√n = 20.38
n = 20.38^2
n = 415.5 = 416
Answer:
N = D * 1.20
Step-by-step explanation:
In order to calculate the number of dishes that the previous menu had we first need to turn this percentage into a decimal by dividing it by 100
20% / 100 = 0.20
Now we add a 1 to it since we are increasing the old menu by this amount
0.20 + 1 = 1.20
Now we can multiply this by the previous menu dishes (D) to get the new amount of menu dishes (N)
N = D * 1.20
Answer:
The answer to this would be:
B) between 2.6 and 2.7
Step-by-step explanation:
Let's solve your equation step-by-step.<span><span><span>x<span>(4)</span></span>−5</span>=6</span>Step 1: Simplify both sides of the equation.<span><span><span>x<span>(4)</span></span>−5</span>=6</span><span>Simplify: (Show steps)</span><span><span><span>4x</span>−5</span>=6</span>Step 2: Add 5 to both sides.<span><span><span><span>4x</span>−5</span>+5</span>=<span>6+5</span></span><span><span>4x</span>=11</span>Step 3: Divide both sides by 4.<span><span><span>4x</span>4</span>=<span>114</span></span><span>x=<span>114</span></span>Answer:<span>x=<span>11<span>4</span></span></span>
