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Arada [10]
2 years ago
11

Which linear inequality is represented by the graph? y < 3x + 2 y > 3x + 2 y < 1/3x + 2 y > 1/3x + 2

Mathematics
1 answer:
andrey2020 [161]2 years ago
4 0

Answer:

y>3x+2 is represented in the graph.

Step-by-step explanation:

To find the linear inequality for the shown graph.

Steps:

Finding the equation of dotted line shown in the graph.

Equation of line is given by

y=mx+b

where m is slope of line and b is y-intercept.

Given points: (0,2) \ and\ (-3,-7)

Slope of the line m=\frac{y_2-y_1}{x_2-x_1}

m=\frac{-7-2}{-3-0}

m=\frac{-9}{-3}

∴ m=3

From the given points we can see that point of y-intercept is given i.e. the point where the line intersects the y-axis  (0,2)

∴ b=2

So equation of line:

y=3x+2

Since the shaded area in the graph is above the line and the line is dotted this means that y is greater than the equation of line.

So, the inequality can be given as:

y>3x+2

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yKpoI14uk [10]

Answer:

3.50h + 17

4.75h + 11

Step-by-step explanation:

3.50 per hour times the hours, h, plus the fee, 17

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4 0
2 years ago
Type the correct answer in the box. Write the standard form of the quadratic equation modeled by the points shown in the table b
White raven [17]
Y =ax² + bx +c

1) Point (0,7)

7 = a*0² +b*0 +c
c = 7
y=ax² + bx + 7

2) Point (1,4)
4=a*1² + b*1 + 7, ----> 4 = a +b + 7, ------> a+b= - 3
3) Point (2, 5)
5=a*2² + b*2 + 7, ----> 5=4a+2b +7,---> -2=4a+2b, ----> -1=2a + b

4)  a+b= - 3, ----> b= -3 - a (substitute in the second equation)
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8 0
2 years ago
Expand and combine like terms.<br> (3c^4-5c^6)^2
lora16 [44]

Answer:

9c^{8} -30c^{10} + 25c^{12}

Step-by-step explanation:

We can use formula (a-b)² = a² -2ab + b².

In our example a = 3c^4 and b = 5c^6

(3c^{4} - 5c^{6})^{2} = [3c^{4} ]^{2} - 2*3c^{4} *5c^{6} + [5c^{6}]^{2}=\\=9c^{8} -30c^{10} + 25c^{12}

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Picture needed. not enough info

8 0
3 years ago
Read 2 more answers
Five positive integers have
djverab [1.8K]

Answer:

5

Step-by-step explanation:

The mean is 6 and there are 5 intergers.

You'd multiply 5*6=30. That means that the sum is 30.

The values could be: 2 3 7 9 9

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Have a mode of 9

Have a median of 7

Have a mean of 6

To find the range you would subtract 9 and 2. That gives you 5.

(i don't know if that's the greatest possible range. But 5 would be the range here)

3 0
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