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ratelena [41]
3 years ago
6

If the point (-1/2, y) lies on the line whose equation is 2x - 3y = 6, what is the value of y?

Mathematics
1 answer:
salantis [7]3 years ago
4 0
Plug in the known x value

2(-1/2)-3y=6
-1-3y=6
-3y=7
y=-7/3

Final answer: -7/3
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Explain how you know which coins could be show 0.77 of a dollar
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4 0
3 years ago
Consider the given function.
Arturiano [62]

Answer:


Step-by-step explanation:

To find the intercept with the x axis, we make h (x) = 0.

0 = (x + 1) ^ 2 - 4

0 = x ^ 2 + 2x + 1 -4

0 = x ^ 2 + 2x - 3

0 = (x +3) (x-1)

x = 1

x = -3

To find the intercept with the y axis, we make x = 0.

y = (0+1)^2 -4

y = -3

For a quadratic equation of the form ax ^2 + bx+ c

The vertex is calculated with the formula x = -b/2a

So:

x = -2/2(1)

x = -1

Finally the axis of symmetry of a quadratic function always passes through the vertex.

So:

x = -1

Below is a graph for this function, where you can see the cut points with the axes, the vertex and axis of symmetry


8 0
2 years ago
Please help, answer both questions correctly and i'll give brainliest
Bezzdna [24]

Answer:

\frac{2}{3} , \frac{27}{64}

Step-by-step explanation:

Volume: length* height * width

In the first diagram:

1\frac{1}{3} * 1 * \frac{1}{2} = \frac{4}{3} * 1  * \frac{1}{2} = \frac{2}{3}

The volume is \frac{2}{3} cubic feet

Next diagram:

\frac{3}{4} * \frac{3}{4} * \frac{3}{4} = \frac{27}{64}

The volume is \frac{27}{64} cubic yards

3 0
2 years ago
Read 2 more answers
Most staircases in use today have 9−inch treads and 8 12 −inch risers. What is the slope of a staircase with these measurements?
Sati [7]

Answer:

The value is  m  = 0.9022

Step-by-step explanation:

From the question we are told that

    The length of the treads is  a =  9 \  inch

     The length of the risers is  b  =  8.12 \  inch

Generally the slope of the staircase is

         m  =  \frac{b}{a}

=>       m  =  \frac{8.12}{9}

=>       m  = 0.9022

4 0
2 years ago
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