Example Stem: Donna wants to calculate the height of a tree. She
makes the following measurements.
The length of the tree's shadow is 29 meters.
The angle of elevation from the ground to the top of the tree is
30°
The tree stands perpendicular to the ground.
Tree
- 300
Ground
29 m
Enter the height of the tree, in meters. Round your answer to the
nearest whole meter.

-2

7 - 9 = -2

reversed:

-2 + 9 = 7

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m

step-by-step explanation:

answer:   (s+1)(s+4)

step-by-step explanation:

factor s2+5s+4

s2+5s+4

=(s+1)(s+4)