All categories

2 years ago

The question is in the image

Mathematics

2 answers:

nekit [7.7K]2 years ago

5 0

Answer:

Step-by-step explanation:

<em>when</em><em> </em>x = 5 ,

f(5) = - 25 ( 5 - 9 )² + 200 = - 200

<em>when</em><em> </em>x = 9 ,

f(9) = - 25 ( 9 - 9 )² + 200 = 200

<em>when </em>x = 10 ,

f(10) = - 25 ( 10 - 9 )² + 200 = 175

<em>when</em><em> </em>x = 15 ,

f(15) = - 25 ( 15 - 9 )² + 200 = -700

∴ when <u>price = $9</u>

the company receive the maximum profit

Alona [7]2 years ago

5 0

Answer:

Step-by-step explanation:

You might be interested in

A software designer is mapping the streets for a new racing game. All of the streets are depicted as either perpendicular or par

Verizon [17]

I think that the answer is letter a

4 0

3 years ago

Please help me answer this question genius

kolbaska11 [484]

Answer:

x ∈ {-0.465, 1.014}

Step-by-step explanation:

The equation can be cast in the form f(x) = 0, and solved easily using a graphing calculator. That shows x ≈ -0.465 and x ≈ 1.014. The same calculator can iterate the roots to full calculator precision.

The equation can be made a quadratic by the substitution ...

z = e^(2x)

Then we have ...

$2\cosh(2x)-\sinh(2x)=4\\\\2\cdot\dfrac{e^{2x}+e^{-2x}}{2}-\dfrac{e^{2x}-e^{-2x}}{2}-4=0\qquad\text{use exponential identities}\\\\2z+2z^{-1}-z+z^{-1}-8=0\qquad\text{multiply by 2, substitute z}\\\\z^2 -8z+3=0\qquad\text{multiply by z}\\\\z=\dfrac{8\pm\sqrt{(-8)^2-4(1)(3)}}{2(1)}=4\pm\sqrt{13}\\\\x=\dfrac{\ln(z)}{2}=\dfrac{\ln(4\pm\sqrt{13})}{2}\approx\{-0465133,1.014439\}$

7 0

2 years ago

What is 9-4(2x-1)=45?

Alexandra [31]

<span>9-4(2x-1)=45
Multiply -4 by 2x and -1
9-8x+4=45
Subtract 9 from both sides
-8x+4=36
Subtract 4 from both sides
-8x=32
Divide both sides by -8
Final Answer: x= -4</span>

5 0

3 years ago

Josie is training for a race. The ratio ofthe number of minutes she runs to thenumber of miles she runs is 24 to 3.She plans to

Tpy6a [65]

Answer:

80 minutes

Step-by-step explanation:

The ratio can be simplified and rewritten:

minutes : miles = 24 : 3 = 8 : 1 = 80 : 10

It will take Josie 80 minutes to run 10 miles at her 8 minutes/mile pace.

5 0

3 years ago

Nutritional researchers conducted an investigation of two high-fiber diets intended to reduce cholesterol level. a group of peop

castortr0y [4]

Answer:

Failed to Reject Null Hypothesis

Step-by-step explanation:

Null Hypothesis: The means from two respective diets are the same Alternative Hypothesis: The two means from the two diets differ.

Fall in Cholesterol (mg/dL)

Diet n Mean SD

Rice 7 14.4 7.8

Vegetable 9 12.19 7.86

4 0

3 years ago

Read 2 more answers