Answer:x=31.4919
Step-by-step explanation:
Step1:isolate a square root on the left hand side√x+3=√2x-1-2
Step2:eliminate the radicals on the left hand side
Raise both sides to the second power
√x+3)^2=(√2x-1-2)^2
After squaring
x+3=2x-1+4-4-4√2x-1
Step3:get the remaining radicals by itself
x+3=2x-1+4-4√2x-1
Isolate radical on the left hand side
4√2x-1=-x-3+2x-1+4
4√2x-1=x
Step4:eliminate the radicals on the left hand side
Raise both side to the second power
(4√2x-1)^2=x^2
After squaring
32x-16=x^2
Step 5:solve the quadratic equation
x^2-32x-16
This equation has two real roots
x1=32+√960/2=31.4919
x2=32-√960/2=0.5081
Step6:check that the first solution is correct
Put in 31.4919 for x
√31.4919+3=√2•31.4919-1-2
√34.492=5.873
x=31.4919
Step7:check that the second solution is correct
√x+3=√2x-1-2
Put in 0.5081 for x
√0.5081+3=√2•0.5081-1-2
√3.508=-1.873
1.873#-1.873
One solution was found
x=31.4919
x is greater then or equal to 250
If the area is 30 inches, then the length must be 5 and the width must be 6, so 10+12=22 which is your perimeter. I got 10 with 5x2 and 12 with 6x2. Then you add it together because the formula for perimeter is (lengthx2) +(widthx2)! Just in case you need an explanation.
115.2 ft is your answer. to find this answer you must first find the volume of the two shapes separately and then add them together. the volume of a cube is length x width x height while the volume of a pyramid is (length x width x height)/3
1 $2.40
2 $12.60
3 $1.80
4 $0.56
