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tekilochka [14]
3 years ago
12

Which equation represent y as a linear function of x? A x= 5 B y=2x C y=2x^2 D y=x^3

Mathematics
1 answer:
Yuri [45]3 years ago
7 0
We know that

The variable x must be either degree zero or degree 1 and the variable y must be 1st degree in order to be a linear function.

case A) x=5
the variable x is first degree but variable y is zero degree---> is not a linear  function

case B) y=2x
the variable x is first degree and  variable y is first degree----------> is a linear  function

case C) y=2x²
the variable x is second degree and  variable y is first degree----------> is not a linear  function

case D) y=x³
the variable x is third  degree and  variable y is first degree----------> is not a linear  function

 the answer is
the option  B) y=2x is a  linear function

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Answer: 1 3 5

Step-by-step explanation:

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A picture inside a frame is 2 inches longer than it is wide. The picture is in a frame that has a width of 3 inches on each side
geniusboy [140]

Answer:

The dimensions of the frame are 15 in x 13 in

Step-by-step explanation:

Let

x ----> the length of the picture

y ----> the width of the picture

we know that

x=2+y -----> equation A

The area of the picture, including the frame is

A=(x+6)(y+6)

A=195\ in^2

so

195=(x+6)(y+6) ----> equation B

substitute equation A in equation B

195=(2+y+6)(y+6)

solve for y

195=(y+8)(y+6)\\y^2+6y+8y+48=195\\\\y^2+14y-147=0

solve the quadratic equation by graphing

The solution is y=7 in

see the attached figure

<em>Find the value of x</em>

x=2+7=9\ in

Find the dimensions of the frame

x+6=9+6=15\ in

y+6=7+6=13\ in

therefore

The dimensions of the frame are 15 in x 13 in

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3 years ago
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IceJOKER [234]

Answer:

See attached diagram

Step-by-step explanation:

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2 years ago
A student artist randomly selected two media from among: charcoal sketches, pencil drawings, and oil paintings, and then submitt
PolarNik [594]

Complete question is;

A student artist randomly selected two media from among: charcoal sketches, pencil drawings, and oil paintings, and then submitted all of her works in that media for a gallery showing. Identify the kind of sample that is described.

Answer:

Cluster sample

Step-by-step explanation:

Looking at the question, we can see that the media has already been grouped into 3 parts namely charcoal sketches, pencil drawings, and oil paintings. It has already been grouped into multiple groups for easy selection or identification.

Now this type of grouping is synonymous with cluster sampling because cluster sampling is a probability sampling technique in which the researchers divide the population into multiple groups known as clusters for research and this question clearly shows that the media has been grouped.

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3 years ago
The area of a rectangle is (25x2 − 9y2) square units. Determine the dimensions of the rectangle by factoring the area expression
8_murik_8 [283]

Answer:

(5x+3y) and (5x-3y)

Step-by-step explanation:

From the concept on difference between two squares;

a² - b² = (a+b)(a-b)

Therefore;

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Therefore the dimensions of the square are (5x+3y) and (5x-3y)

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