We can calculate (62 + 90) / 2 = 76. it's <span>known that 95% lies between the mean and twice the standard deviation. </span><span>if the mean is "μ" and the standard deviation is "σ": </span><span>μ-2σ and μ+2σ. i</span><span>f μ=76, then </span><span>76+2σ = 90, so 2σ = 14, so σ = 7.
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<span>the mean is 76 and the standard deviation 7. </span>
Answer:
The answer to your question is below
Step-by-step explanation:
In blue is f(x) = x² + 3
in red, x =1
F(1) = 1 + 3
= 4
Point = (1,4 ) in yellow
Answer:
<h3>65</h3><h3 />
Step-by-step explanation:
y = 40x + 25
where x = 1 class
y = total cost
y = 40 (1) + 25
<h3> = 65</h3>
Formula for perimeter of a square: P = 4a
Formula for area of a square: A = a²
a is given as:
19
Plug this value for a into the above formulas to solve for perimeter and area.
P = 4a
P = 4(19)
P = 76
-----------------------------------------------------------------------------------------------------------------
A = a²
A = 19²
A = 361
Answer:
P = 76 units; A = 361 units².
Hey there! :)
We're simply just trying to convert "-18x + 2y ≥ -13" into slope-intercept form.
First, we need to know what slope-intercept form is.
Slope-intercept form is : y=mx+b , where m=slope and b=y-intercept.
In order to convert our given equation into slope-intercept form, we have to isolate "y."
We can do this by adding 18x to both sides.
2y ≥ 18x - 13
Then, divide both sides by 2.
2y ÷ 2 = (18x - 13) ÷ 2
Simplify.
y = 9x - 13/2
Convert -13/2 into a mixed fraction.
So, simply divide -13 by 2.
-13 ÷ 2 = -6.5
Plug in -6.5 into where -13/2 was.
y = 9x - 6.5
Therefore, your answer is C : y ≥ 9x - 6.5
~Hope I helped!~
