Answer:
40 km/h
Step-by-step explanation:
rate of change of distance = speed
speed = distance/time
speed = (400 km)/(10 h)
speed = 40 km/h
Answer:
b
Step-by-step explanation:
there's a property for Alternate Interior Angles
If the diameter is 3 feet, then the radius is 1.5 feet. Area of a circle = pi * radius squared or
A = pi * (1.5)²
A = pi * 2.25
A = 3.14 * 2.25
A = 7.065 ≈ 7.1
7.1 feet² is your answer.
Answer:
Hello! answer: 12 cm
Step-by-step explanation:
60 ÷ 5 = 12 Therefore. the height is 12 hope that helps!
Answer: 65
Step-by-step explanation:
Since the mean mark of the 9 students is 50. Their total marks will be:
= 9 × 50
= 450
Since the marks obtained by 8 students are given, we add the marks together and this will be:
= 60+40+50+30+80+40+45+40
= 385
The score of the 9th student will be:
= 450 - 385
= 65
