At a certain store, a CD costs $12. If the cost of CDs were graphed as the output, compared to the number of CDs purchased as input, which of the following would not be true of the graph?

Answers

Answer 1

Answer: If these where the choices:
A. The set of points would all lie on the same line.
B. The set of points would include the origin.
C. The set of points would rise from left to right.
D. The set of points would not graph a function.

My answer would be C.) The set of points would rise from left to right.

Cost of the CDs were graphed as the output, it is y. x would be the number of CDs.

An increase in x will result to an increase in y thus the set of points would rise from left to right.

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Identify all factors of the expression 12x^2-14x-6

Answers

Let's solve this by using the quadratic formula:

$(-b+-√(b^2-4ac) )/(2a)$

Note that we only use the coefficients so a=12, b=-14, and c=-6.

Plug values in the quadratic equation:

$\frac{ - ( - 14)± \sqrt{ {( - 14)}^(2) - 4(12)( - 6) } }{2(12)}$

And so by evaluating those values we obtain:

$(14+-√(484) )/(24)=(14+-22)/(24) \n\n$

Now we have two answers which are our factors one where we add another where we subtract and so:

First factor:

$(14+22)/(24)=(36)/(24)=(3)/(2)$

Second Factor:

$(14-22)/(24)=(-8)/(24)=-(1)/(3)$

And so your factors are

$(3)/(2),-(1)/(3)$

meaning that those are your roots/x-intercepts.

what is: x + 3 - 2x -1 = 4

5 3

Answers

(x + 3)/5 - (2x - 1)/3 = 4 / * 15

3(x + 3) - 5(2x - 1) = 15 * 4

3x + 9 - 10x + 5 = 60

7x = 60 - 9 - 5

7x = 46 / : 7

x = 6 4/7

Answer:

X= -46/7

Step-by-step explanation:

step1: left part times 15 is 3(X+3)-5(2X-1)

step2: right part times 15 is 60

step3: 3(X+3)-5(2X-1)=60

step4: 3X+9-10X+5=60

step5: -7X+14=60

step6: -7X=46

step7: X= -46/7

What numbers are divisble by 23 but are between 2 and 10?

Answers

That is impossible.

For a number to be divisible by 23, it has to be greater than 23.

A number cannot be greater than 23, if you have restricted it to be within the numbers 2 and 10.

The circumference of a circle is 19π in. What is the area, in square inches? Express your answer in terms of π.

Answers

Answer:

A = 90.25 pi in^2

Step-by-step explanation:

The circumference is given by

C = 2*pi*r

19pi = 2*pi*r

Divide each side by 2 pi

19pi / 2 pi = 2*pi*r/ 2pi

9.5 = r

The area is given by

A = pi r^2

A = pi ( 9.5)^2

A = 90.25 pi in^2

Answer:

The area of circle is 90.25 π inches².

Step-by-step explanation:

Given:-

Circumference of circle is 19 π in.

To Find :-

Area of circle

Solution :-

Firstly, we need to find radius of circle

Using formula

Circumference of circle = 2 π r

substitute the value

19 π inches = 2 π r

Divide each side by 2 π

19 π inches / 2 π = 2 π r / 2 π

9.5 inches = r

Now, Finding the area of circle

Using formula

Area of circle = π × r²

Where,

r, radius of circle = 9.5 inches

Substitute the values

Area of circle = π × ( 9.5 inches)²

Evaluate the exponent

Area of circle = π × 90.25 inches ²

multiply ,we get

Area of circle = 90.25 inches²

Hence, the area of circle is 90.25 π inches².

Is 9/12. Bigger than 3/4?

Answers

No it is the same and u will tell is u simplify 9/12 down

No,9/12 is equal to 3/4 because when you find the LCM of the number it is three then you multiply the number to 3/4 and you get 9/12.

or 9/12 is = to 3/4

Which values, when placed in the box, would result in a system of equations with no solution? Check all that apply.y = –2x + 4

6x + 3y =

A: –12

B: –4

C: 0

D: 4

E: 12