Answer:
10
Step-by-step explanation:
Here it's given that the area of the shaded region is 48 u² and we need to find out the value of x .
The given figure is made up of two rectangles where the smaller one is inscribed into the bigger one .
- The area of shaded region will be equal to the difference of the areas of the two rectangles , that is equal to 48 u² .
- The area of rectangle is length × breadth .
- The dimensions of bigger rectangle is (x+3)(x-4) and that of smaller one is 3 × x .
So that ,
ar(bigger) - ar(smaller) = 48
[ (x+3) (x-4)] - 3(x) = 48
[ x² - 4x +3x -12 - 3x ] = 48
x² -4x -12 -48 = 0
x² - 4x - 60 = 0
x² - 10x + 4x - 60 = 0
x( x -10) +4(x -10) = 0
(x +4)(x-10) = 0
x = -4,10
- Since sides can't be negative ,
x = 10
<h3>
Hence the required answer is 10.</h3>
Answer:
30% increase
Step-by-step explanation:
30 is 30 percent of 100 so the answer is 30 percent increase
Answer:$1,060
Step-by-step explanation: if it charges $40 every mont after the the first 100 dollar charge that means in 1 year you with have payed 480 becuase 40*12= 480 then adding on another year with make it 40*24=960 also including the first $100 u pay you with have payed $1,060
Answer:
27
Step-by-step explanation:
28+17+17+15=76
76÷4= 19
Answer:
The 4th choice which is y+1=2(x-3)
