Answer:-9.869
Step-by-step explanation:
Answer:
Step-by-step explanation:
Angles<em> </em><em>Y</em> and <em>X</em> form a <em>linear pair</em>, therefore you use the Linear Pair Theorem to solve for <em>x</em>:
![\displaystyle 180° = [2s - 4]° + [s + 91]° → 180° = [87 + 3s]° → 93 = 3s; 31 = s](https://tex.z-dn.net/?f=%5Cdisplaystyle%20180%C2%B0%20%3D%20%5B2s%20-%204%5D%C2%B0%20%2B%20%5Bs%20%2B%2091%5D%C2%B0%20%E2%86%92%20180%C2%B0%20%3D%20%5B87%20%2B%203s%5D%C2%B0%20%E2%86%92%2093%20%3D%203s%3B%2031%20%3D%20s)
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Your answers well be
1. 4m
2. 7r2-r-1
3. -3h+5
4. m2-2m+9
5. 7x+7
How come it’s a right triangle, I think you do a2+b2=C2. Therefore, you do 9.4 times 9.4 and then 15.1 times 15.1. So it will be 9.4 + b2=15.1. 88.36+ b2=228.01. Then you subtract that and it will be 139.65. Then you do square roots because you are trying to get rid of the second power. And the final answer is 11.81736011. How they told you to round it to the nearest tenth, I will be 11.8. I think this is the answer.
Answer:
(-2,4] and [7,α)
Step-by-step explanation:
the domain is open at -2 but closed at 4 and also closed at 7 but open till infinity..
