Answer:
-6+-10=-16
Step-by-step explanation:
+ - = -
........
Answer:
true and the answer would be 45.5
Step-by-step explanation:
(a) The sum of length and width is half the perimeter, so the breadth in terms of length (x) in cm will be
.. breadth = 34 -x
(b) Then the expression for the area (in cm^2) is
.. area = length*breadth
.. 253 = (x)(34 -x)
.. x^2 -34x +253 = 0 . . . . . subtract the right side, eliminate parentheses
.. (x -11)(x -23) = 0 . . . . . . . factor
.. x = 11 or 23
The dimensions of the rectangle are 11 cm by 23 cm.
900 divided by 3 is 300 so 300 students bring their lunch opposed to 600 students who do not.
Answer:
x=13 feet
Step-by-step explanation:
A ramp is between 1.96 and 1.80 feet, we will take 1.96
and R(x)=1.96 feet: we apply quadratic formula; 
, where a=-0.05, b=0.8 and c=-1.96, so
solving 
; we take the highest value of x, x=13
