Correct answer is the last one.
Function because for every x only one value of y,
not one-to-one because, 2 values of x have the same value of y.
Answer: It only has one solution.
Step-by-step explanation:
Let's solve your equation step-by-step.
3(
7
/3
+
4
/3
)−2x+8=5x+12
Step 1: Simplify both sides of the equation.
3(
7
/3
+
4
/3
)−2x+8=5x+12
11+−2x+8=5x+12
(−2x)+(11+8)=5x+12(Combine Like Terms)
−2x+19=5x+12
−2x+19=5x+12
Step 2: Subtract 5x from both sides.
−2x+19−5x=5x+12−5x
−7x+19=12
Step 3: Subtract 19 from both sides.
−7x+19−19=12−19
−7x=−7
Step 4: Divide both sides by -7.
−7x
/−7
=
−7
/−7
x=1
Answer:
x=1
Answer:: D(t)= 50(4/5)^t
Step-by-step explanation: If 1/5 of the temperature difference is lost each minute, that means 4/5 of the difference remains each minute. So each minute, the temperature difference is multiplied by a factor of 4/5 (or 0.8).
If we start with the initial temperature difference, 50° Celsius, and keep multiplying by 4/5, this function gives us the temperature difference t minutes after the cake was put in the cooler.
Step-by-step explanation:
so correct answer is a7 as
