Answer:
-4
Step-by-step explanation:
its so easy. its like 1+3 but in a negative way.
Let
x--------> the number
we know that
x+(1/x)=65/28---------> x+1/x=65/28-----> multiply by x
x²+1=65/28*x-----> x²-(65/28)*x+1=0
using a graph tool----> to resolve the second order equation
see the attached figure
the solution is
x=1.75-----> 1 3/4----> (4*1+3)//4----> 7/4
so
7/4+4/7----> (7*7+4*4)/28----> (49+16)/28----> 65/28----> is correct
the answer isthe number is 7/4
Answer:
8![\sqrt{2}](https://tex.z-dn.net/?f=%5Csqrt%7B2%7D)
Step-by-step explanation:
Using the rule of radicals
•
×
⇔
, then
![\sqrt{18}](https://tex.z-dn.net/?f=%5Csqrt%7B18%7D)
=
=
×
= 3![\sqrt{2}](https://tex.z-dn.net/?f=%5Csqrt%7B2%7D)
Hence
5
+ 3
= 8
≈ 11.31
Answer:
![\overline{SR}\sim \overline{NM}](https://tex.z-dn.net/?f=%5Coverline%7BSR%7D%5Csim%20%5Coverline%7BNM%7D)
Step-by-step explanation:
In similar triangles, all corresponding sides are similar. Since
corresponds with
, they are similar. None of the other answer choices use corresponding sides.
Answer:
<u>Part A</u>:
(
is equal to all real numbers)
<u>Part B</u>:
![5+(-4)-12=-4-7,\\-11=-11\:\checkmark,\\\\5+0-12=0-7,\\-7=-7\:\checkmark,\\\\5+5-12=5-7,\\-2=-2\:\checkmark](https://tex.z-dn.net/?f=5%2B%28-4%29-12%3D-4-7%2C%5C%5C-11%3D-11%5C%3A%5Ccheckmark%2C%5C%5C%5C%5C5%2B0-12%3D0-7%2C%5C%5C-7%3D-7%5C%3A%5Ccheckmark%2C%5C%5C%5C%5C5%2B5-12%3D5-7%2C%5C%5C-2%3D-2%5C%3A%5Ccheckmark)
Step-by-step explanation:
<u>Part A</u>:
Given
, combine like terms:
![x-7=x-7](https://tex.z-dn.net/?f=x-7%3Dx-7)
Add 7 to both sides:
![x=x](https://tex.z-dn.net/?f=x%3Dx)
Since this is merely a true statement for all real numbers (reflexive property), this equation is true for any real value of
.
Therefore,
(
is equal to all real numbers).
<u>Part B</u>:
Using arbitrary values
as requested in part B, verify:
![5+(-4)-12=-4-7,\\-11=-11\:\checkmark,\\\\5+0-12=0-7,\\-7=-7\:\checkmark,\\\\5+5-12=5-7,\\-2=-2\:\checkmark](https://tex.z-dn.net/?f=5%2B%28-4%29-12%3D-4-7%2C%5C%5C-11%3D-11%5C%3A%5Ccheckmark%2C%5C%5C%5C%5C5%2B0-12%3D0-7%2C%5C%5C-7%3D-7%5C%3A%5Ccheckmark%2C%5C%5C%5C%5C5%2B5-12%3D5-7%2C%5C%5C-2%3D-2%5C%3A%5Ccheckmark)