Answer:
A=πr(r+h2+r2)
Step-by-step explanation:
literally just search it up
<h2>Greetings!</h2>
Anything to the power of 1 is still 1, because
is simply 1 x 1 x 1 x 1 x 1 = 1 ect.
<h3>So this changes the equation to 1x = 2, which means that:</h3>
x = 2
<h2>Hope this helps!</h2>
Answer:
x = ± ![\sqrt{7}](https://tex.z-dn.net/?f=%5Csqrt%7B7%7D)
Step-by-step explanation:
To find the zeros equate the polynomial to zero, that is
x² - 7 = 0 ( add 7 to both sides )
x² = 7 ( take the square root of both sides )
x = ±
Thus the exact solutions are
x = -
, x = ![\sqrt{7}](https://tex.z-dn.net/?f=%5Csqrt%7B7%7D)
ax+by=20
a represents how many first items you bought
x represents the cost of the first item
b represents how many second items you bought
y represents the cost of the second item
9514 1404 393
Answer:
1/2
Step-by-step explanation:
The rules of exponents are helpful.
(a^b)^c = a^(bc)
a^-b = 1/a^b
__
![25^{\frac{1}{2}}\times10^{-1}=\dfrac{(5^2)^{\frac{1}{2}}}{10^1}=\dfrac{5^{2\cdot\frac{1}{2}}}{10}\\\\=\dfrac{5^1}{10}=\dfrac{5}{10}=\boxed{\dfrac{1}{2}}](https://tex.z-dn.net/?f=25%5E%7B%5Cfrac%7B1%7D%7B2%7D%7D%5Ctimes10%5E%7B-1%7D%3D%5Cdfrac%7B%285%5E2%29%5E%7B%5Cfrac%7B1%7D%7B2%7D%7D%7D%7B10%5E1%7D%3D%5Cdfrac%7B5%5E%7B2%5Ccdot%5Cfrac%7B1%7D%7B2%7D%7D%7D%7B10%7D%5C%5C%5C%5C%3D%5Cdfrac%7B5%5E1%7D%7B10%7D%3D%5Cdfrac%7B5%7D%7B10%7D%3D%5Cboxed%7B%5Cdfrac%7B1%7D%7B2%7D%7D)