New length = 30x110% = 33cm
new width = 20x105% = 21cm
original perimeter = 30x2 + 20x2
= 60 + 40 = 100
new perimeter = 33x2 + 21x2
= 66 + 42 = 108
increase in perimeter = 108-100 = 8
percentage increase = 8/100 x 100% = 8%
Answer:
32
Step-by-step explanation:
let a = 5
a² + 7 | Original equation
5² + 7 | Substitution of a as 5
25 + 7 | 5 to the power of 2 is 25, as 5*5 = 25.
32 | 25 + 7 = 32
Answer:
41.1764...%
Step-by-step explanation:
60% on 50 questions is 30/50 correct since 30÷50=.6=60%
Between 30 and 50(inclusive) there are 21 numbers.(30,31,32...49,50).
There are 51 possibilities of scores,1-50/50 or 0/50
21/51=0.411764...
I would say ray ac, because it shouldn't matter which order you put the letters.
<span>let 2x be the length of rectangw where x is value of x of point on parabola width is represented as y is the length.
Area = 2x*y = 2x (5-x^2) = 10x -2x^3
maximize Area by finding x value where derivative is zero
dA/dx = 10 -6x^2 = 0
--> x = sqrt(5/3)
optimal dimensions: length = 2sqrt(5/3) width = 10/3</span>
