Hi,
Work:
Multiply both sides by 144.
Move X to left side and change its side.
Calculate the sum
Divide both sides by 80.
+++ Results +++
Fraction form:
Or decimal form:
Hope this helps.
r3t40
(8x)^2 = 1
64 x^2 = 1
x^2 = 1/64
x = 1/8
Answer
The positive value of x that makes the equation true is x = 1/8
The right answer for the question that is being asked and shown above is that: "y = x/26 and y = -0.030(x-500)2+15,900." A company plans to sell bicycle helmets for $26 each. The company's business manager estimates that the cost, y, of making x helmets is a quadratic <span>function with a y-intercept of 8,400 and a vertex of (500, 15,900).</span>
Answer:
P [ X < 67 ] = 0,66,81 or 66,81 %
Step-by-step explanation:
We assume Normal Distribution N ( μ ; σ ) N ( 76 ; 6 )
z score for 67 is :
z(s) = ( X - μ ) /σ
z(s) = ( 67 - 76 ) / 6
z(s) = - 9 / 6
z(s) = - 1,5
with 1,5 we fnd n z-table area undr the curve α = 0,6681
Then P [ X < 67 ] = 0,66,81 or 66,81 %
