Answer:
D. X< 4
Step-by-step explanation:
12(x-2) < 24
divide both sides by 12
so we get
(x-2) < 2
now add 2 to both sides
x < 4
I think it’s square root of 32 cuz u would take 6 squares minus 2 squared to get the square root of 32
Answer:
it is 18
Step-by-step explanation:
Answer:
58 ft
Step-by-step explanation:
So I attached a diagram that illustrates the triangle that is formed. We know an angle, as well as the hypotenuse. We are looking for the height, or in other words the opposite side of the angle. There is a trigonometric function defined as:
. Using this we can plug in known values and solve for the opposite side, which I'll simply represent as x.
![sin(46) = \frac{x}{80}](https://tex.z-dn.net/?f=sin%2846%29%20%3D%20%5Cfrac%7Bx%7D%7B80%7D)
Multiply both sides by 80
![sin(46) * 80 = x](https://tex.z-dn.net/?f=sin%2846%29%20%2A%2080%20%3D%20x)
Calculate sin(46) using a calculator (make sure it's in degree mode)
![0.7193398 * 80 = x](https://tex.z-dn.net/?f=0.7193398%20%2A%2080%20%3D%20x)
Simplify
![57.547 \approx x](https://tex.z-dn.net/?f=57.547%20%5Capprox%20x)
Round this to the nearest foot
![58 \approx x](https://tex.z-dn.net/?f=58%20%5Capprox%20x)
The given triangle is isosceles, so the two remaining angles in the triangle both have measure <em>xº</em>. The interior angles of any triangle sum to 180º, so that
58º + <em>xº</em> + <em>xº</em> = 180º
58 + 2<em>x</em> = 180
2<em>x</em> = 122
<em>x</em> = 61
Angles <em>y</em> and <em>z</em> are supplementary to angle <em>x</em>, so that
<em>xº</em> + <em>yº</em> = 180º
and
<em>xº</em> + <em>zº</em> = 180º
and consequently, <em>y</em> = <em>z</em>. In particular, we get
<em>y</em> = 180 - 61
<em>y</em> = 119
and so
<em>z</em> = 119