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kozerog [31]
3 years ago
13

I need help please!!!!

Mathematics
2 answers:
Anna007 [38]3 years ago
7 0

C because iTs the right oNE

Gwar [14]3 years ago
6 0
C, cuz it just different
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Suppose a certain outlet chain selling appliances has found that for one brand of stereo system, the monthly demand is 240 when
Doss [256]

Answer: Therefore the demand function can be given as;

q = -3/2p + 1590

Step-by-step explanation:

Given that at;

$900 the monthly demand is 240. ....1

$850 the monthly demand is 315. ....2

Since, the function is a linear function. The demand function would be of the form;

q = mp + c ....5

Where q = quantity demanded

p = price m = slope and c = intercept

Substituting conditions 1 and 2 to the equation.

240 = 900m + c. ...3

315 = 850m+ c ...4

Subtracting eqn 4 from 3

-75 = 50m

m = -75/50

m = -3/2

Substituting m = -3/2 into equation 3;

We have,

240= -3/2(900) + c

c = 240 + 3/2(900)

c = 1590

Therefore the demand function can be given as; substituting m and c into equation 5, we have;

q = -3/2p + 1590

6 0
4 years ago
Please help. I’ll mark you as brainliest if correct!
Stels [109]

Answer:

I believe the area is: 42x - 49

Step-by-step explanation:

You multiply 7 times (6x-7).

7 times 6x is 42x.

And 7 times -7 is -49.

Hope this helps!

3 0
4 years ago
In triangle ABC, the length of side AB is 10 inches and the length of side BC is 15 inches. Which of the following could be the
Tems11 [23]
I am going to assume D is the correct answer, hope I'm right!
5 0
4 years ago
select whether the equation has a solution or not, square root x-2- square root 2x= square root x+2 (a. roots b. no roots)
Agata [3.3K]

The equation is \sqrt{x-2 \\ \\ -\sqrt{2x} = \sqrt{x +2}


Solution

<u>Step 1:</u>

Take square on both sides, we get

3x - 2\sqrt{x-2}\sqrt2{x} -2 = x +2

<u>Step 2:</u>

Subtract 3x - 2 from both sides, we get

-2\sqrt{x-2} \sqrt{2x} = -2x + 4

<u>Step 3:</u>

Again, square on both sides in order to get rid of the square root from the above equation, we get

8x^{2}-16x = 4x^{2} -16x +16

Now we have to simplify it,

4x^{2} -16 = 0

<u>Step 4:</u>

Now we have to solve this quadratic equation, in order to get the solution.

We get x = 2 and x = -2, When we verifying solution in the original given equation, the solution does not satisfy the equation.

Reason: We get negative number in the square root.

Therefore, it has no Roots.


<em>Answer: b) No roots</em>

5 0
3 years ago
8. Write an algebraic expression to represent each
skelet666 [1.2K]
3x-14 = n

Hope this helps
4 0
3 years ago
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