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Wittaler [7]
3 years ago
15

The length of a rectangle is 3 cm more than 10 times its width. The area of the rectangle is 75 cm2. A quadratic function can be

used to represent the dimensions of the rectangle. What quantity of the rectangle represents the domain of that function? A) the area B) the width C) the length Eliminate D) the perimeter

Mathematics
2 answers:
Anuta_ua [19.1K]3 years ago
8 0
The way the problem statement is worded, it is likely the quadratic would be written in terms of the width.

Selection B appears to be the appropriate choice.

_____
IMO the problem is worded in a funny way. A domain is usually a set of numbers associated with the independent variable. It appears the question is asking what is the independent variable. Given the relations stated in the problem, it could be either the width or length. It could even be the perimeter, but that is a less convenient choice for solving the rectangle. In other words, arguably any selection except A is correct. (The attachment shows quadratics in terms of width, length, and perimeter.)

Alexxandr [17]3 years ago
6 0

Answer:

Step-by-step explanation:

its b i have the same quyeastion

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Name
Anvisha [2.4K]

Answer:

4x+8

6x-8

48x^2+30x-4

Step-by-step explanation:

a) 4(x + 2)=4x+8

b) 2(3x - 4)  =6x-8

c) 4(3 - 6x) 2x + 18-2(2 – 3x)  

=(12-24x)2x-4+6x

=24x-48x^2-4+6x

=-48x^2+30x-4

4 0
3 years ago
Charges competition fees of $250 plus $75 per week for classes. What is the
Nimfa-mama [501]

Answer:

$3,250

Step-by-step explanation:

You take the initial fee of 250 then add 75x40

250x75(40)=$3250

3 0
3 years ago
Look at this shape : which image shows a rotation?
Luba_88 [7]

Answer:

Option C

Step-by-step explanation:

8 0
3 years ago
Can u guys help me like I’m so lost rn
Komok [63]

Answer:

The answer is A because when you take both X and Y they are both negative so the only way to keep the answer negative would be to add them.

If you subtract one from the other it adds the opposite

If you multiply them the negatives cancel each other and the answer becomes positive

If you divide them the negatives cancel out and so again the answer would be positive

Step-by-step explanation:

When you add an negative number to another negative number your number stays negative

4 0
3 years ago
PLEASE HELP ASAP, BRAINLEST
Artyom0805 [142]

Answer:

equation in standard form is  -3x + 5y = -26

Step-by-step explanation:

standard form of equation of line is

Ax + By = C

where A,B and C are integers.

such line has slope -A/B

Another form of line equation is slope intercept form, which can be written as

y = mx+ c

since in problem m = 3/5

thus, equation is

y = 3/5 x + c

Given that (2,-4) passes through this line, this point will satisfy the above equation

-4 = 3/5 *2 + c

=> - 4 = 6/5 + c

=> c = -4 -6/5 = (-4*5 - 6)/5

=> c = (-20 - 6)/5 = -26/5

Thus, equation in slope intercept form is

y = 3/5 x -26/5

lets rewrite this equation in  Ax + By = C

Multiplying LHS and RHS by 5 we have

5y =( 3/5 x)* 5 - (26/5 * 5)

=> 5y = 3x - 26

we have to bring 3x on LHS for that

we subtract 3x from both side

5y  -3x = 3x - 26 -3x

=> 5y  -3x =  - 26

rearranging the equation

-3x + 5y = -26

Thus, equation in standard form is  -3x + 5y = -26

6 0
3 years ago
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