Hi there! :)
Answer:
<u><em>*THE ANSWER MUST HAVE A NEGATIVE SIGN!*</em></u>
Step-by-step explanation:
First, you subtract by 8 from both sides of an equation.
5x+8-8=9x+12-8
Subtract.
12-8=4
5x=9x+4
Then, you subtract by 9x from both sides of an equation.
5x-9x=9x+4-9x
Simplify by equation.
-4x=-4
Divide by -4 from both sides of an equation.
-4x/-4=-4/-4
Divide by the numbers from left/right.
-4/-4=-1
, <em>is the FINAL/CORRECT ANSWER! :)</em>
<em>Have a nice day! :)</em>
<em>:D</em>
<em>-Charlie</em>
<em>Thank you!</em>
Answer:
17.75 feet below sea level
Step-by-step explanation:
-26 + 8.25= -17.75
Answer:
x<1
Step-by-step explanation:
10x + 80 < 90
10x < 90 - 80
10x < 10
x < 1
So you can use tan here, which is opposite/adjacent. (We're looking for the Adjacent)
Since we know Trail E is 1700, we're looking for the patch of trail A that is the adjacent. So if we put 42 into a tan calculator we get about 0.9.
So that means that 1,700 / adjacent = 0.9.
So we can also say
1,700/0.9 = adjacent
or, 1,700/0.9 = 1888.89
Now, we have the little patch of trail A in the smaller right triangle. We want to find the patch of trail A in the larger right triangle.
So just do 5,000 - 1,888.89
You get 3111.11
So if we know that's that, and we're looking for the hypotenuse, or Trail B, we can use cosine, because that's adjacent / hypotenuse.
So 42 in a cosine calculator is 0.74 ish.
So 3111.11 / hypotenuse = 0.74
Or 3111.11 / 0.74 = hypotenuse
Or 3111.11 / 0.74 = 4204
So Trail C should be 4204 feet long.
Arc length = radius * central angle (measured in radians)
There are
<span>
<span>
<span>
57.2957795131
</span>
</span>
</span>
degrees per radian so
45 degrees = (45 /
<span>
<span>
<span>
57.2957795131) = </span></span></span>
<span>
<span>
<span>
0.7853981634
</span>
</span>
</span>
radians<span><span>
</span>
</span>
radius = arc length / central angle (radians)
radius = 6.5 / <span>
<span>
0.7853981634
</span>
</span>
radians =
<span>
<span>
<span>
8.2760570408
</span>
</span>
</span>
cm
http://www.1728.org/radians.htm
