Answer:
3/27/2023, 5:20:18 PM
(4,2) is reflected across both axes
3/27/2023, 5:20:24 PM
If the point (4,2) is reflected across both the x-axis and the y-axis, its new coordinates will be (-4,-2).
When a point is reflected across the x-axis, its y-coordinate changes sign, but its x-coordinate remains the same. So if we reflect (4,2) across the x-axis, we get (4,-2).
When a point is reflected across the y-axis, its x-coordinate changes sign, but its y-coordinate remains the same. So if we reflect (4,-2) across the y-axis, we get (-4,-2).
Therefore, reflecting (4,2) across both axes results in the point (-4,-2).
3/27/2023, 5:20:55 PM
ahmed buys a house for £179 500
a year later he sells the house for £190 270
calculate the percentage profit ahmed makes
3/27/2023, 5:21:01 PM
Ahmed's profit is the difference between the selling price and the buying price:
Profit = Selling Price - Buying Price
Profit = £190,270 - £179,500
Profit = £10,770
To calculate the percentage profit, we need to divide Ahmed's profit by his buying price, and then multiply by 100 to convert the fraction to a percentage:
Percentage Profit = (Profit/Buying Price) x 100%
Percentage Profit = (£10,770/£179,500) x 100%
Percentage Profit = 0.06 x 100%
Percentage Profit = 6%
Therefore, Ahmed makes a 6% profit on the sale of the house.
3/27/2023, 5:21:32 PM
A 1.2kw is connected to a voltage of wire 240v the resistance of the heater element and the current drawn by the current respectively
3/27/2023, 5:21:41 PM
Using Ohm's Law, we can calculate the resistance and current in the circuit.
Ohm's Law states that Voltage (V) = Current (I) x Resistance (R).
We know the voltage (V) is 240V and the power (P) of the heater element is 1.2kW, which is equivalent to 1200W.
We can use the formula for power: Power (P) = Voltage (V) x Current (I)
We can rearrange this to solve for current:
Current (I) = Power (P) / Voltage (V)
Current (I) = 1200W / 240V
Current (I) = 5A
Now we can use Ohm's Law to calculate the resistance:
Resistance (R) = Voltage (V) / Current (I)
Resistance (R) = 240V / 5A
Resistance (R) = 48Ω
Therefore, the resistance of the heater element is 48Ω and the current drawn by the circuit is 5A.