I think
A. convert the time to seconds, so all the time are 7070sec and the total course to meter.
so 31300meter
Vector = TotalCourse÷total time
V=31300/7070=4.427157m/s
convert it to km/h so 4.427157×36÷10=
15.9377km/h
B. 45÷15.9377=2.823Hour
it means that around 2 Hour 48Minutes more.
i think the teacher need to simplify it

3 0

3 years ago

Katie was selling her necklaces at a garage sale. She sold 4 bead necklaces and 3 gem stone necklaces if each necklace cost $3 h

Mrrafil [7]

Answer: 21

Step-by-step explanation:

4 • 3 = 12

3•3=9

12+9= 21

6 0

3 years ago

Given f(x)=4x^2-5x+3 and g(x)=2x-7, what is f(x)+g(x) ?

nadezda [96]

Answer:

Step-by-step explanation:

4x^2 - 5x + 3 + 2x - 7

4x^2 - 3x - 4

6 0

3 years ago