Answer:
b) 2x + y = -4
Step-by-step explanation:
To go from the Point-Slope Formula [y - y₁ = m(x - x)₁] to the Slope-Intercept Formula [y = mx + b], move -1 to the RIGHT side of the equivalence symbol to get this: y = -2x - 4. Although this is a correct answer choice, this is NOT what the question is looking for because you have to go an extra step further, Standard Formula. To go from the Slope-Intercept Formula to the Standard Formula [Ax + By = C], move 2x to the LEFT side of the equivalence symbol, and you will end up with this: 2x + y = -4. So, your answer is b).
Answer: see proof below
<u>Step-by-step explanation:</u>
Use the following Half-Angle Identities:
sin² A = (1 - cos 2A)/2
cos² A = (1 + cos 2A)/2
<u>Proof LHS → RHS:</u>
LHS: sin⁴ A
Expand: sin² A · sin² A
LHS = RHS
Answer:
The sale price of the item is 96 pounds.
Step-by-step explanation:
If all the items are reduced by 20%, this means now their price is 100% - 20% = 80% of the original price.
Therefore, if an item was originally priced at 120pounds, its price now will of 80% of 120 pounds, i.e.
The sale price of the item is 96 pounds.
A. 2 liters lemon lime soda 1 pint ice cream 3 cups of ice
B. 6 liters lemon lime:3 pint ice cream:9 cups ice