Answer:
To change a number from scientific notation to standard form, move the decimal point to the left (if the exponent of ten is a negative number), or to the right (if the exponent is positive). You should move the point as many times as the exponent indicates. Do not write the power of ten anymore.
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Answer:
The piecewise functions accurately represents charges based on Ben's cell phone plan is :

Step-by-step explanation:
Let x be the minutes over cell phone
Let f(x) represents the piecewise function that represents the charges based on Ben's cell phone plan.
We are given that Ben has a cell phone plan that provides 200 free minutes each month for a flat rate of $39.
So,
We are also given that For any minutes over 200, Ben is charged $0.35 per minute.
So, Minutes over 200 = x-200

Hence the piecewise functions accurately represents charges based on Ben's cell phone plan is :

1.introduce a constant k hence
y=kx then find the value of the constant first -4=k2 hence k =-2
y=-2×-6
y=12
Step-by-step explanation:
follow the same procedure for the others and remember if it is inversely proportional then it becomes y=k/x
Answer:
y = 0.55 or 5 / 9
Step-by-step explanation:
here's the solution :-
=》y + 7 = 19y - 3
=》7 + 3 = 19y - y
=》18y = 10
=》y = 10 ÷ 18
=》y = 5 ÷ 9
=》y = 0.55