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Andreas93 [3]
4 years ago
14

Does the equation y=3x-12 show a proportional relationship between x and y? Explain

Mathematics
1 answer:
irakobra [83]4 years ago
6 0
No because the b in the equation y=mx+b is the first coordinate which DOES NOT go through origin (0,0)
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The manager of a company uses the function shown to model the company’s daily profit based on the price of a product in dollars,
just olya [345]

Answer: 1) The minimum price, in dollars, to avoid a loss = 22,

2) the maximum price in dollars , to avoid a loss = 53,

3) The price that results the maximum profit = 37.5 dollars

Step-by-step explanation:

Since the given function that shows the total profit,

f(x) = (x-22)(53-x)

Where x is the price of the product.

Since for avoiding the loss,

f(x) \geq 0,

⇒ (x-22)(53-x)\geq 0

If (x-22)\geq 0 \implies x\geq 22

If 53 - x \geq 0 \implies 53 \geq x

Thus, 53 ≥ x ≥ 22,

Therefore, the minimum price to avoid the loss = $ 22

And, the minimum price to avoid the loss = $ 53

f'(x) =\frac{d}{dx}[(x-22)(53-x)] = (x-22)\frac{d}{dx} (53-x)+(53-x) \frac{d}{dx}(x-22)

⇒ f'(x) = - (x-22)+(53-x) = -x+22+53-x =-2x+75

Now, For maximum or minimum,

f'(x) = 0,

⇒ -2x+75 = 0

⇒ -2x = -75

⇒ x = 37.5

f''(x) = \frac{d}{dx}(-2x+75)=-1

For x = 37.5, f''(x) is negative,

Thus, For the price of $ 37.5 dollars the company has the greatest profit.



4 0
3 years ago
What expression is equivalent to 3x+3x+3x
Katena32 [7]

Answer: 9x

Step-by-step explanation:

When adding X you simply add the numbers in front of X.

3+3+3=9 so you have 9x

think of it as this. If you have 3 apples and add 3apples and then 3 more appls. How many apples are there

3 apples+ 3 apples+ 3 apples= 9 apples

6 0
3 years ago
Hey can anyone help please and thank you !
EleoNora [17]

Answer:

x = 2

Step-by-step explanation:

4 0
3 years ago
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CAN SOMEONE PLEASE HELP ME WITH THIS???
Len [333]

Answer:

your answerr should be A

4 0
4 years ago
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What is the conditional frequency of a student who rides the bus being late to class first period?
Novosadov [1.4K]

Answer:

1/5

Step-by-step explanation:

The Constraint is ; those who rode the bus, hence it is conditional because we aren't focused on students, only students who rode the bus.

Now we want the frequency of those who were late Given that they rode the bus : for these we have 3 students

Total number of students who rode the bus , total possible outcome = 15

Hence, the conditional frequency = (number who rode bus and were late / otal number who rode the bus)

Hence, we have ; 3 / 15 = 1 / 5

3 0
3 years ago
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