Lauren is given a 12% pay rise.Her new salary is £24,080. What was Lauren's salary before the pay rise?
1 answer:
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Answer:
- 8
units
Step-by-step explanation:
<u>We know that:</u>
- P = 4a
<u>We can find one side by distance formula:</u>
- a =
- a =
<u>Then the perimeter is:</u>
- P = 4*2
Q 16. The energy is 308.7 J.
Q 17. The energy is 896000 J.
Step-by-step explanation:
Q 16. Given,
Mass (m) of the carriage and baby = 1.5 kg
Height (h) = 21 m
To find the energy.
We will find the potential energy as it rests at the top.
Formula
Potential energy = mgh where g be the gravitational force of the earth = 9.8m/s²
So,
Energy = 1.5×9.8×21 J
= 308.7 J.
Hence,
The energy is 308.7 J.
Q 17. Given,
Mass (m) = 1120 kg
Speed (v) = 40 m/s
To find out the energy.
We will find out the kinetic energy as the car is in motion.
Formula
Kinetic energy = mv²
So,
Energy = ×1120×40² J
= 896000 J
Hence,
The energy is 896000 J.