Answer:xscscx
Step-by-step explanation:
<span>Following the order of operations:
4^2 + 5 * 3^2 – 4^2 / 2^3
</span><span>16 + 5 * 3^2 – 4^2 / 2^3
</span><span>16 + 5 * 9 – 4^2 / 2^3
</span><span>16 + 5 * 9 – 16 / 2^3
</span><span>16 + 5 * 9 – 16 / 8
</span><span>16 + 45 – 16 / 8
</span><span>16 + 45 – 2
</span><span>61 – 2
</span>59
The answer is 59
Answer:
22.43
Step-by-step explanation:
three points ==> it's a triangle
so we will just have to calculate the length of each side
U & V has the same y-coordinate, which means UV is a horizontal line ==>
UV = 3 - (-2) = 5
V & W has the same x-coordinate, which means VW is a vertical line ==>
VW = 4 - (-4) = 8
UW is not a horizontal line nor a vertical line, so we will have to calculate it using distance formula
UW = sqrt { [3 - (-2)]^2 + [-4 - 4]^2 } = sqrt{25 + 64} = sqrt(89) ~~ 9.43
so the perimeter of the polygon is UV + VW + UW = 5 + 8 + 9.43 = 22.43
Answer:
See below.
Step-by-step explanation:
The addition method is a good choice in this case since you have x in one equation and -x in the other equation, and x and -x add to zero, eliminating x.
x - 5.5y = -14
-x + 2.6y = 8.2
Add the equations. x and -x ad to zero, eliminating x. Then solve for y.
-2.9y = -5.8
Divide both sides by -2.9
y = 2
Substitute 2 for y in the first original equation, and solve for x.
x - 5.5y = -14
x - 5.5(2) = -14
x - 11 = -14
x = -3
Solution: x = -3; y = 2
Since the coefficients of y in the two original equations are not opposites, the addition method would not be the best method to use to solve for y first.
