Answer:
Step-by-step explanation:
Integer factors of 117 include ...
... 117 = 1×117 = 3×39 ≈ 9×13
The last factor pair is two factors that differ by 4. We can take these to be the dimensions of the rectangle.
_____
If you want to write an equation for width (w), it might be ...
... w(w+4) = 117
... w² +4w -117 = 0
The factorization problem for this quadratic is the problem of finding two factors of 117 that differ by 4. That is what we have done, above.
If you want to solve this by completing the square, you can to this:
... w² +4w = 117
... w² +4w +4 = 121 . . . . . add 4 = (4/2)² to complete the square
... (w+2)² = 121
... w + 2 = ±√121 = ±11 . . . . take the square root
... w = -2 ± 11 . . . . . we're only interested in the positive solution
... w = 9, then w+4 = 13 and the dimensions are 9 cm by 13 cm.
Answer:
![\sqrt[7]{y}](https://tex.z-dn.net/?f=%5Csqrt%5B7%5D%7By%7D)
Step-by-step explanation:
The rule for a fraction as an exponet is:
![a^{\frac{b}{c}}=\sqrt[c]{x^b}](https://tex.z-dn.net/?f=a%5E%7B%5Cfrac%7Bb%7D%7Bc%7D%7D%3D%5Csqrt%5Bc%5D%7Bx%5Eb%7D)
Apply the rule to the expression given:
![y^{\frac{1}{7}}=\boxed{\sqrt[7]{y}}](https://tex.z-dn.net/?f=y%5E%7B%5Cfrac%7B1%7D%7B7%7D%7D%3D%5Cboxed%7B%5Csqrt%5B7%5D%7By%7D%7D)
Hope this helps you.
Answer:
10 + 11 = <u><em>21</em></u>
12 + 1 = <u><em>13</em></u>
10 + 10 =<u><em>20</em></u>
20 + 29 = <u><em>49</em></u>
Hope that helps. x
Answer:
74.5 and 64.5
Step-by-step explanation:
Women midpoints:
54.5 - 0%
64.5 - 30%
74.5 - 35% (most pulse rates from women)
84.5 - 29%
94.5 - 2%
104.5 - 2%
114.5 - 0%
124.5 - 2%
Men midpoints:
0 - 0%
54.5 - 15%
64.5 - 43% (most pulse rates from men)
74.5 - 20%
84.5 - 20%
94.5 - 2%
104.5 - 0%
