(a) 95 = (x+7)*(x-7)
(b) 95 = (x+7)*(x-7)
Expand the brackets:
95 = x² -7x + 7x -49 = x² - 49
Subtract x² from both sides:
95-x² = -49
Subtract 95 from both sides:
-x²=-49-95
-x²= -144
Divide both sides by -1 to get rid of the negative numbers:
-x²/-1=-144/-1
x²=144
Take the square root of 144:
x = ± squareroot of 144
x = 12 or -12
x = 12 because you cannot have a negative age so Trina is 12 years old.
Answer:
can we get the figure plz
Answer:C would be the correct answer
Step-by-step explanation:
Answer:
The quantity of total serving soup does restaurant has = T = 2
liters .
Step-by-step explanation:
Given as :
The quantity of large serving soup =
liters
The total quantity of soup does restaurant has = 3 liters
Let the quantity of total serving soup does restaurant has = T liters
So, According to question
The quantity of total serving soup does restaurant has = The quantity of large serving soup × total quantity of soup does restaurant has
Or, T =
× 3
Or, T = 
Or, T =
∴ T = 2
liters
So, quantity of total serving soup does restaurant has = T = 2
liters
Hence,The quantity of total serving soup does restaurant has = T = 2
liters . Answer