Well if you're talking about decimals it will come out as 00.020
Answer:
129.5 seconds.
Step-by-step explanation:
C = 3.14 (450)
= 1413
1413 (.40) = 565.2
562.5 + 300 + 300
= 1165.2
1165.2 / 9
= 129.5 seconds.
Feel free to let me know if you need more help! :)
Answer: ![(-5.5,4.062)\ \text{and}\ (-5.5,-8.062)](https://tex.z-dn.net/?f=%28-5.5%2C4.062%29%5C%20%5Ctext%7Band%7D%5C%20%28-5.5%2C-8.062%29)
Step-by-step explanation:
Given
The two vertices of a equilateral triangle are ![(-9,-2)\ \text{and}\ (-2,-2)](https://tex.z-dn.net/?f=%28-9%2C-2%29%5C%20%5Ctext%7Band%7D%5C%20%28-2%2C-2%29)
Suppose the third vertex is ![(x,y)](https://tex.z-dn.net/?f=%28x%2Cy%29)
Side length in equilateral triangle are equal.
![\Rightarrow \sqrt{\left( -2+9\right)^2+\left( -2+2\right)^2}=\sqrt{\left( x+9\right)^2+\left( y+2\right)^2}\\\text{squaring both sides}\\\\\Rightarrow 7^2=\left( x+9\right)^2+\left( y+2\right)^2\quad \ldots(i)\\\\](https://tex.z-dn.net/?f=%5CRightarrow%20%5Csqrt%7B%5Cleft%28%20-2%2B9%5Cright%29%5E2%2B%5Cleft%28%20-2%2B2%5Cright%29%5E2%7D%3D%5Csqrt%7B%5Cleft%28%20x%2B9%5Cright%29%5E2%2B%5Cleft%28%20y%2B2%5Cright%29%5E2%7D%5C%5C%5Ctext%7Bsquaring%20both%20sides%7D%5C%5C%5C%5C%5CRightarrow%207%5E2%3D%5Cleft%28%20x%2B9%5Cright%29%5E2%2B%5Cleft%28%20y%2B2%5Cright%29%5E2%5Cquad%20%5Cldots%28i%29%5C%5C%5C%5C)
Similarly,
![\Rightarrow \sqrt{\left( -2+9\right)^2+\left( -2+2\right)^2}=\sqrt{\left( x+2\right)^2+\left( y+2\right)^2}\\\\\Rightarrow 7^2=\left( x+2\right)^2+\left( y+2\right)^2\quad \ldots(ii)](https://tex.z-dn.net/?f=%5CRightarrow%20%5Csqrt%7B%5Cleft%28%20-2%2B9%5Cright%29%5E2%2B%5Cleft%28%20-2%2B2%5Cright%29%5E2%7D%3D%5Csqrt%7B%5Cleft%28%20x%2B2%5Cright%29%5E2%2B%5Cleft%28%20y%2B2%5Cright%29%5E2%7D%5C%5C%5C%5C%5CRightarrow%207%5E2%3D%5Cleft%28%20x%2B2%5Cright%29%5E2%2B%5Cleft%28%20y%2B2%5Cright%29%5E2%5Cquad%20%5Cldots%28ii%29)
Subtract (i) and (ii)
![\Rightarrow \left( x+9\right)^2-\left(x+2\right)^2=7^2-7^2\\\\\Rightarrow (x+9+x+2)(x+9-x-2)=0\\\Rightarrow (2x+11)7=0\\\\\Rightarrow x=-\dfrac{11}{2}](https://tex.z-dn.net/?f=%5CRightarrow%20%5Cleft%28%20x%2B9%5Cright%29%5E2-%5Cleft%28x%2B2%5Cright%29%5E2%3D7%5E2-7%5E2%5C%5C%5C%5C%5CRightarrow%20%28x%2B9%2Bx%2B2%29%28x%2B9-x-2%29%3D0%5C%5C%5CRightarrow%20%282x%2B11%297%3D0%5C%5C%5C%5C%5CRightarrow%20x%3D-%5Cdfrac%7B11%7D%7B2%7D)
Insert the value of
in equation (ii)
So, two possible vertex are ![(-5.5,4.062)\ \text{and}\ (-5.5,-8.062)](https://tex.z-dn.net/?f=%28-5.5%2C4.062%29%5C%20%5Ctext%7Band%7D%5C%20%28-5.5%2C-8.062%29)
You're simply divided each number by two
500/2= 250
250/2= 125
125/2= 62.5
62.5/2=?
Answer:
7 - (-3)
Step-by-step explanation:
7 + 3 = 7 - (-3).