Answer:
The answers are given below.
Step-by-step explanation:
8) A) acute 9) C) acute 10) D) right 11) B) acute
12) A) straight 13) A) acute 14) D) right 15) C) ∠L
16) B) ∠HIG 17) B) ∠DEC 18) B) ∠K 19) C) ∠G
20) C) ∠KLJ
We know that ,
1. when 0° < θ < 90°, θ is acute.
2. when θ = 90° θ is right
3. when 90° < θ < 180°, θ is obtuse
4. when θ = 180° θ is straight
Answer:
- A) 290 km
- B) 4 hours
- C) 72.5 km/h
Step-by-step explanation:
Let distance be d and time t
<u>At 75 km/h speed the distance is</u>
- d = 75(t - 48 min) = 75(t - 48/60 hours)
<u>At 50 km/h speed the distance</u> is
<u>Since the distance is same, we get the equation:</u>
- 75(t - 48/60) = 50t + 40
- 75t - 75*4/5 = 50t + 40
- 75t - 60 = 50t + 40
- 75t - 50t = 40 + 60
- 25t = 100
- t = 4 hours
<u>A) The distance between A and B</u>
<u>B) Time is </u>
<u>C) The speed = d/t</u>
- Speed = 290/4 = 72.5 km/h
Hi!
55<35+10x
Move 35 to the left, using the opposite operation:
55-35<10x
20<10x
Divide both sides by 10:
2<x
Since 2 is greater than x, x is less than 2:
x<2 (Answer)
Hope it helps!
Enjoy your day!
~Misty~
4.9 * 102 = 499.8
6.8 * 103 = 700.4
1.71 * 103 = 120.51
