Answer:
x = 13 and x = 1
Step-by-step explanation:
(x-7)² = 36
simplify left side of equation
x² - 14x + 49 = 36
Our object now is to get every thing on the left side of the equal sign so we can factor. To do this, we subtract 36 from both sides
x² - 14x + 13 = 0
we then factor the left side of the equation
( x - 1 ) ( x - 13 ) = 0
we then set factors equal to 0 and solve both factors for x
x - 1 = 0
add 1 to both sides
x = 1
x - 13 = 0
add 13 to both sides
x = 13
The values of x are x = 13 and x = 1
Answer:

Step-by-step explanation:
According to the Definition of Rational Exponents, use this formula to rewrite this as an exponential expression:
![a^{\frac{m}{n}} = \sqrt[n]{a}^{m}](https://tex.z-dn.net/?f=a%5E%7B%5Cfrac%7Bm%7D%7Bn%7D%7D%20%3D%20%5Csqrt%5Bn%5D%7Ba%7D%5E%7Bm%7D)
NOTE: Since we have exponents in our radical, we have to multiply all exponents by one-half, since raising something to its <em>half power</em> is the exact same as taking the <em>square root</em> of something:
![[{n}^{3}{p}^{4}]^{\frac{1}{2}} = {n}^{1\frac{1}{2}}{p}^{2}](https://tex.z-dn.net/?f=%5B%7Bn%7D%5E%7B3%7D%7Bp%7D%5E%7B4%7D%5D%5E%7B%5Cfrac%7B1%7D%7B2%7D%7D%20%3D%20%7Bn%7D%5E%7B1%5Cfrac%7B1%7D%7B2%7D%7D%7Bp%7D%5E%7B2%7D)
* Do not forget to remove the radical in the beginning because you are once again, rewriting this as an exponential expression.
I am joyous to assist you anytime.
Answer:
-27
Step-by-step explanation:
Number be x
Eight added to number: x+8
sum is doubled: 2*(x + 8)
-11 less than number: x -11
2*(x + 8) = x -11
2*x + 2*8 = x - 11
2x + 16 = x - 11
2x - x = -11 -16
x = -27
(10x)^ (-3)
= 1/ [(10x)^3]
= 1/ [10^3* x^3]
= 1/ (1000x^3)
The final answer is 1/ (1000x^3), and I don't think there is a correct option to choose from. ( option c would be correct if it were written with round brackets)
Hope this helps~
your equation is:
a² + b² = c²
So, plug in what you know.
5² + 12² = c²
5² means 5*5, so your "a" is equal to 25
12² means 12*12, so your "b" is equal to 144
25 + 144 = c²
to this part, add a and b. you'll get 169.
169 = c²
next, use your calculator and square both sides.
√169 = √c²(you don't really have to do anything with the c, just get rid of the ²)
squaring both sides will get rid of the ² in c, and will give you your new number:
c = 13