Answer:
25 y 3−15 y 2−10 y ... 25y3 - 15y2 - 10y = 5y • (5y2 - 3y - 2) ... 5y • (y-1) Add up the last 2 terms, pulling out common factors : 2 • (y-1
That would be 7.
1,2,7,14
Answer:
look up the basic rules for sin and cos
Step-by-step explanation:
Answer:
Step-by-step explanation:
a)
![\sqrt[3]{81}=\sqrt[3]{3^4}=\sqrt[3]{(3^3)(3)}=3\sqrt[3]{3}](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B81%7D%3D%5Csqrt%5B3%5D%7B3%5E4%7D%3D%5Csqrt%5B3%5D%7B%283%5E3%29%283%29%7D%3D3%5Csqrt%5B3%5D%7B3%7D)
This is irrational.
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b)
![\sqrt[3]{-64}=\sqrt[3]{(-4)^3}=-4](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B-64%7D%3D%5Csqrt%5B3%5D%7B%28-4%29%5E3%7D%3D-4)
This is rational.
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Please be aware that 3 square root of 81 is not the same as cube root of 81.
![3\sqrt{81}\ne\sqrt[3]{81}](https://tex.z-dn.net/?f=3%5Csqrt%7B81%7D%5Cne%5Csqrt%5B3%5D%7B81%7D)
You can call a cube root what it is.
By using the Parallel Line Theorem you can determine that Angle B and H are equal. Then you need to solve for x.
8x - 34 = 5x + 2
8x - 5x = 2 + 34
3x = 36
x = 36/3
x = 12
Lastly, you substitute this x value into the expression in the H angle.
5x + 2
= 5(12) + 2
= 60 + 2
= 62°
Therefore, Angle H is 62°.