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Zinaida [17]
2 years ago
8

(02.03 MC)

Mathematics
1 answer:
babunello [35]2 years ago
4 0

Answer:

y = - 2x - 4

Step-by-step explanation:

the equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

calculate m using the slope formula

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (- 2, 0) and (x₂, y₂ ) = (0, - 4) ← 2 points on the line

m = \frac{-4-0}{0-(-2)} = \frac{-4}{0+2} = \frac{-4}{2} = - 2

the line crosses the y- axis at (0, - 4 ) ⇒ c = - 4

y = - 2x - 4 ← equation of line

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Algebra help for ACT!
denis23 [38]

Answer:

J. The equation has one real solution and two complex solutions.

Step-by-step explanation:

Complex solutions come in pairs, so there can only be an even number of them.  So we can rule out G, H, and K.

To find the other roots, we can factor using either long division or grouping.  To use long division, see the attached picture.  To use grouping:

3x³ − 4x² + x − 10 = 0

3x³ − 6x² + 2x² + x − 10 = 0

3x² (x − 2) + (2x + 5) (x − 2) = 0

(x − 2) (3x² + 2x + 5) = 0

The other factor is 3x² + 2x + 5.  The discriminant of this is (2)² − 4(3)(5) = -56.  Since the discriminant is negative, the roots are complex.

3 0
3 years ago
Write the linear equation in slope-intercept form given the following:<br> (-3, 7) and (6, -8)
Viefleur [7K]

Answer:

y = - \frac{5}{3} x + 2

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (- 3, 7) and (x₂, y₂ ) = (6, - 8)

m = \frac{-8-7}{6+3} = \frac{-15}{9} = - \frac{5}{3} , then

y = - \frac{5}{3} x + c ← is the partial equation

To find c substitute either of the 2 points into the partial equation

Using (6, - 8) , then

- 8 = - 10 + c ⇒ c = - 8 + 10 = 2

y = - \frac{5}{3} x + 2 ← equation of line

6 0
3 years ago
A flower pot has a radius of 10 inches. Evelyn wants to tie a ribbon around the pot. How long does the ribbon have to be in orde
mariarad [96]

Answer:68.5

Step-by-step explanation:

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3 years ago
If the bases of an isosceles trapezoid have lengths of 11 and 24, what is the length of the median? A. 17.5 units B. 35 units C.
erma4kov [3.2K]

Answer:

Option A. 17.5\ units

Step-by-step explanation:

we know that

The measure of the median is the semi-sum of the bases

so

\frac{1}{2}(11+24)=17.5\ units

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3 years ago
Read 2 more answers
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san4es73 [151]

Answer:

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Step-by-step explanation:

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