Answer:
x=19
Step-by-step explanation:
x+35=54
54-35=19
x=19
Step-by-step explanation:
- Let the supplement of the angle = 180 - x
- Let the complement of the angle = 90 - x
Now, <u>According to our assumption we can set up an equation :</u>
➵ (180 - x) - 3(90 - x) = 10
➵ 180 - x - 270 + 3x = 10
➵ 2x - 270 = 10 - 180
➵ 2x - 270 = -170
➵ 2x = -170 + 270
➵ 2x = 100
➵ x = 100/2
➵ x = 50
<h3>
<u>Therefore,</u></h3>
- The supplement of the angle = 180-x = 180 - 50 = 130°
- The complement of the angle = 90 - x = 90 - 50 = 40°
The equation is h=-16t²+40t+5.The ball will hit the ground when h=0. So:
0=-16t²+40t+5
16t²-40t-5=0
Using the quadratic formula, we get a positive value for t of <span>2.61930639376 seconds.
☺☺☺☺
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Answer:
Step-by-step explanation:
A. 3x+21=6x-60 -> 3x=81 -> x=27. So false. The value of x=27.
B. True. Alternate interior angles theorem.
C. False. The marked angles are alternate interior angles.