-.1666666666 is the reciprocal of -6
Answer:
hypotenuse is 22.47 m
Step-by-step explanation:
The length of both legs of a right angle triangle are 8m and 21 m
We need to find the hypotenuse
To find hypotenuse we use Pythagorean theorem
Hypotenuse is AC and other two legs are AB and BC
![AC^2 = AB^2 + BC^2](https://tex.z-dn.net/?f=AC%5E2%20%3D%20AB%5E2%20%2B%20BC%5E2)
Hypotenuse ^2 = 8^2 + 21^2
hypotenuse = ![\sqrt{8^2 + 21^2}](https://tex.z-dn.net/?f=%5Csqrt%7B8%5E2%20%2B%2021%5E2%7D)
= ![\sqrt{64 + 441}](https://tex.z-dn.net/?f=%5Csqrt%7B64%20%2B%20441%7D)
= ![\sqrt{505}](https://tex.z-dn.net/?f=%5Csqrt%7B505%7D)
= 22.47
So the length of the hypotenuse is 22.47 m
Answer:
To evaluate an algebraic expression, you have to substitute a number for each variable and perform the arithmetic operations. In the example above, the variable x is equal to 6 since 6 + 6 = 12. If we know the value of our variables, we can replace the variables with their values and then evaluate the expression.
Answer:10%= 310
5%= 155
15%=465
Step-by-step explanation: Solution for what is 15% of 3100
3100/x=100/15
(3100/x)*x=(100/15)*x - we multiply both sides of the equation by x
3100=6.66666666667*x - we divide both sides of the equation by (6.66666666667) to get x
3100/6.66666666667=x
465=x
x=465