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2 years ago

10

Is (2, 2) a solution of y < 4x – 6?

1 answer:

Roman55 [17]2 years ago

6 0

Answer:

No

Step-by-step explanation:

To see if (2,2) is a solution, substitute them into the inequality and see if it is true.

2 is our x value, and 2 is also our y value

y < 4x – 6

2< 4(2)– 6

2 < 8 – 6

2 < 2

This statement is false. 2 is not less than 2, so (2,2) is not a solution to this equation.

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A rectangle field has an area of 300 square meters and a perimeter of 80 meters. what are the length and width of the field?

Yakvenalex [24]

By definition the area of a rectangle is:
A = w * l
The perimeter is:
P = 2w + 2l
Where,
w: width
l: long
Substituting values:
300 = w * l
80 = 2w + 2l
Solving the system of equations we have:
l = 30 m
w = 10 m
Answer:
The length and width of the field are:
l = 30 m
w = 10 m

6 0

3 years ago

Find the slope and the y -intercept of the line.

Eduardwww [97]

Answer:

The slope is: 3

The y-intercept is: $\frac{2}{3}$ or $0.66$

Step-by-step explanation:

The equation of the line in Slope-Intercept form is:

$y=mx+b$

Where "m" is the slope of the line and "b" is the y-intercept.

To write the given equation in this form, we need to solve for "y":

$9x - 3y = -2\\\\- 3y = -9x-2\\\\y=3x+\frac{2}{3}$

Therefore, you can identify that the slope of this line is:

$m=3$

And the y-intercept is:

$b=\frac{2}{3}=0.66$

7 0

2 years ago

Solve the second equation.<br>2x - y = 8<br>First, solve for (-y).<br>--y =<br>

kicyunya [14]

Answer:

$-y=-2x+8\\y=2x-8$

Step-by-step explanation:

To solve, first subtract 2x from both sides.

$2x-y=8\\-y=-2x+8$

You appear to want the solution for -y, so I've included it. Given that you also want the solution for y, divide both sides by -1.

$-y=-2x+8\\y=2x-8$

5 0

2 years ago

Pls help im really bad at this stuff

Rasek [7]

Answer:

Student B

Step-by-step explanation:

Student B

Their wages increase at intervals of $6 each hour.

6*1 = $6

6*2 = $12

6*3 = $18

6*4 = $24

6*5 = $30

6*6 = $36

6*7 = $42

6*8 = $48

This shows a proportional relationship between the wages earned and the number of hours worked.

Hope this helps!

6 0

2 years ago

Read 2 more answers

The selling price of an item is $ 455 After 6 months of not selling, it is marked down by 20%. After another 6 months of not

Nitella [24]

X/455=0.8
X=0.8*455
X=$364

Y/455=0.7
Y=455*0.7
Y=$318.5

Hope this helps!

7 0

3 years ago