1. Solve the problem [(–7 + 2) + 4] – 3 = ?
1 answer:
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Answer:
a. Check the diagram
b. He walked 58 feet
c. He is 18 feet far away from the house
Step-by-step explanation:
a. Eli started inside the house an walked 12 feet (blue arrow), after that he keep walking until the mailbox for 32 feet (green arrow) and after that he came back until the dog 14 feet (red arrow).
b. For calculating how far has he walked we need to take into acount all the travel so we add all the arrows:
12ft + 32ft + 14ft =58ft
He walked 58 feet.
c. The distance from the dog to the house is determine by the substraction between the distance to the mailbox with the distance he walked to the dog then:
32ft - 14ft = 18ft.
He is 18 feet far away from the house.
When two lines are parallel, the perpendicular distance between them is the same all through the way and the angles formed between the parallel lines and the perpendicular ones joining them is equal to 90 degree.
Example of this is the square or the rectangle as shown below:
AB || BC and both AD and BC are perpendicular on the two lines.
Accordingly, the two perpendicular lines are equal
Based on this, the ratio of PR and QS is 1:1
Example of this is the square or the rectangle as shown below:
AB || BC and both AD and BC are perpendicular on the two lines.
Accordingly, the two perpendicular lines are equal
Based on this, the ratio of PR and QS is 1:1