Answer:
x= 3 +
, 3 -![\sqrt{23}](https://tex.z-dn.net/?f=%5Csqrt%7B23%7D)
Step-by-step explanation:
You use the quadratic formula to get x= ![\frac{18+6\sqrt{23} }{6} ,\frac{18-6\sqrt{23} }{6}](https://tex.z-dn.net/?f=%5Cfrac%7B18%2B6%5Csqrt%7B23%7D%20%7D%7B6%7D%20%2C%5Cfrac%7B18-6%5Csqrt%7B23%7D%20%7D%7B6%7D)
Then you simplify and get the answers x= 3 +
, 3 -![\sqrt{23}](https://tex.z-dn.net/?f=%5Csqrt%7B23%7D)
This is a ratio problem; the ratio of the length to width is constant (and therefore equal):
4 /6 = 15 / x
Now, with a ratio, we may do any allowable algebra operation: cross-multiply, invert both sides, multiply or divide both sides by the same amount, etc.
Let's cross-multiply:
4x = (15)(6)
x = 90/4
x = 22.5 in.
A) 2 2/9
The answer would of course be positive because two negatives make a positive.
It would only be 6 4/9 if you added when here it states the obvious for you to subtract.
Hope this helped PLEASE MARK BRAINLIEST!!
Slope= (Y2-Y1)/(X2-X1)
Slope=(3-(-4) ) /(-14-(-7) )
Slope= (3+4)/(-14+7)
Slope=7/-7
Slope= -1
Answer:
Step-by-step explanation:
Surface area is the sum of the areas of all faces (or surfaces) on a 3D shape. A cuboid has 6 rectangular faces. To find the surface area of a cuboid, add the areas of all 6 faces. We can also label the length (l), width (w), and height (h) of the prism and use the formula, SA=2lw+2lh+2hw, to find the surface area.