Answer:
(2x²+6x-22) ft
Step-by-step explanation:
l = (x²+2x-16) ft
and w = (x+5) ft
the Perimeter =
2(x²+2x-16) +2(x+5)
= 2x²+4x-32+2x+10
= 2x²+6x-22
Answer:
Step-by-step explanation:
<u>Given </u><u>:</u><u>-</u><u> </u>
- The sum of two numbers is 52.
- The product of the numbers is 4 .
And we need to find the sum of reciprocals of the numbers. For that let us assume that the numbers are .
<u>According</u><u> to</u><u> </u><u>1</u><u>s</u><u>t</u><u> </u><u>condition</u><u> </u><u>:</u><u>-</u><u> </u>
Now expressing this equation by keeping only one variable on one side as ,
<u>According</u><u> to</u><u> </u><u>2</u><u>n</u><u>d</u><u> </u><u>condition</u><u> </u><u>:</u><u>-</u>
- Now solve this quadratic equation.
On solving the equation using quadratic Formula we will get the value of y as ,
- Note that the sum of x and y is 52 .So in order to find the value of x we will subtract 26±4√42 from 52 and we will get the value of x same as y .
Now we need to find out the sum of reciprocal of the two numbers . That will be ,
<u>Hence</u><u> the</u><u> </u><u>sum </u><u>of</u><u> </u><u>their </u><u>reciprocals </u><u>is </u><u>1</u><u>3</u><u> </u><u>.</u>
Answer:
74
Step-by-step explanation:
Answer: 35.88
Step-by-step explanation: So if something is marked up by 8.7% it means, it is 108.7% of the original number.
So we can convert 108.7% to a decimal by dividing 108.7 by 100, which equals 1.087.
So if we want to find the original number, all we have to do is divide 39 by 1.087.
This will give us 35.88 as the original number rounded to the nearest tenth.