Answer:
20112.25
Step-by-step explanation:
4x(5.3)x 20
20.3 x 20= 40.3
40.3 x 20.8= 838.24
838.24 x 24= 20112.25
Answer:
Reflecting a point across the y-axis -> changes the sign of the x-coordinate
Reflecting a point across both axes -> changes the sign of both coordinates
Reflecting a point across the x-axis -> changes the sign of the y-coordinate
Step-by-step explanation:
Reflections:
- The rule to reflect a point across the y-axis is (-x, y), meaning that the x-coordinate's sign changes.
- Reflecting a point across both axes is the same thing as rotating it 180 degrees, so the rule is (-x, -y). This means that both coordinates' signs change.
- Reflecting a point across the x-axis is (x, -y), meaning that the y-coordinate's sign changes.
4hour.
<h3>Justification:</h3>
<u>We are given time takes to travel is inversely with an average speed</u>.
- When average speed is 40mph, it takes 2hour.
Then,
<u>If average speed is 80mph, let time taken be x</u>:
- 40/2 = 80/x
- 40x = 160
- x = 160/40
- x = 4
<u>Hence, it takes 4 hour to travel to a destination with 80mph</u>.
Answer:
Step-by-step explanation:
(-3/4)^-4 = (-4/3)^4 = (4/3)^4
