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Shkiper50 [21]
3 years ago
8

Please help! Do you know the answer​

Mathematics
1 answer:
azamat3 years ago
5 0

Answer:

x = 9

Step-by-step explanation:

y = 2/3x - 6

If the y point is 0, then plug that number into the equation and solve for x.

0 = 2/3x - 6

Add 6 to both sides of the equation.

6 + 0 = 2/3x - 6 + 6  or  6 = 2/3x

Multiply both sides by 3.

3 x 6 = 2/3x x 3   or 18 = 2x

Divide both sides by 2

18/2 = 2x / 2   or 9 = x

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Help me plss, number 2.​
Gnesinka [82]

Answer:

At (-2,0) gradient is -4 ; At (2,0) gradient is 4

Step-by-step explanation:

For this problem, we simply need to take the derivative of the function and evaluate when y = 0 (when crossing the x-axis).

y = x^2 - 4

y' = 2x

The function y = x^2 - 4 cross the x-axis when:

y = x^2 - 4

0 = x^2 - 4

4 = x^2

2 +/- = x

Hence, this curve crosses the x-axis twice, once at (-2,0) and again at (2,0).

The gradient at these points are as follows:

y' = 2(-2) = -4

y' = 2(2) = 4

Cheers.

3 0
3 years ago
What is the sum of the measures of the interior angles formed by the boundary of this team pennant?
Debora [2.8K]
I think the correct answer from the choices listed above is option C. The <span>sum of the measures of the interior angles formed by the boundary of this team pennant should be 180 degrees since all triangles has a sum of interior angles which is 180 degrees. Hope this answers the question.</span>
3 0
3 years ago
Read 2 more answers
An item costs $440 before tax, and the sales tax is $13.20.
Ahat [919]

Answer:

3%

Step-by-step explanation:

13.2 / 440 = 0.03

0.3*100 = 3%

3 0
2 years ago
Drag the tiles to the boxes to form correct pairs. Polygon ABCD is defined by the points A(-4, 2), B(-2, 4), C(1, 3), and D(2, 2
Ber [7]

Answer:

D'(-2, 2); C''(3, -1); A'''(4, -2); and B''(4, 2)

Step-by-step explanation:

For D', we rotate the point (2, 2) 90° counterclockwise. This maps every point (x, y)→(-y, x); it takes (2, 2)→(-2, 2).

For C'', we rotate the point (1, 3) 90° clockwise.  This maps every point (x, y)→(y, -x); it takes (1, 3)→(3, -1).

For A''', we rotate the point (-4, 2) 180° clockwise.  This maps every point (x, y)→(-x, -y); it takes (-4, 2)→(4, -2).

For B'', we rotate the point (-2, 4) 270° counterclockwise.  This is the same as rotating the point 90° clockwise.  This maps every point (x, y)→(y, -x); it takes (-2, 4)→(4, 2).

7 0
3 years ago
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What fraction of a dollar is represented by one dime
VLD [36.1K]
10 over 100 is the answer

10/100
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3 years ago
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