Answer:get with your older brother
Step-by-step explanation:
Answer:
Rounded to the nearest hundredth:
m = 3.14
Step-by-step explanation:
0.02m + 0.04 = -0.18 + 0.09m
Isolate the m
0.02m + 0.04 = -0.18 + 0.09m
-0.09m -0.09m
-0.07m + 0.04 = -0.18
-0.04 -0.04
Now, let's simplify it.
-0.07m = -0.22
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-0.07 -0.07
m = 3.14 (rounded to the nearest hundredth)
The side of the triangle is 13 inches
Side of square. 6 inches
X= side of square
4x+15 =3(x+7)
4x+15=3x+21
x=6
6+7= 13
Perím square 6x4= 24
Perim triangle 13x3=39
39-24=15
Part (a)
The raw score is x = 25. The mean and standard deviation are mu = 45 and sigma = 13.8 respectively.
The z score is computed with the formula below
z = (x-mu)/sigma
z = (25-45)/13.8
z = -1.449275 approximately
z = -1.45 is the final answer
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Part (b)
We want the z score to be larger than 2. So z > 2.
This is the same as wanting the expression (x-mu)/sigma to be larger than 2
(x-mu)/sigma > 2
(x-45)/13.8 > 2
x-45 > 2*13.8
x-45 > 27.6
x > 27.6+45
x > 72.6
If a customer's age is greater than 72.6 years, then this means they have a z score greater than 2. We can say they are more than 2 standard deviations above the mean.
If you need a whole number, then I'd round up to 73. Or you could pick any age larger than this.