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2 years ago

Find the distance between the points (-3,- 2.2) and (-3,2.6).

Mathematics

1 answer:

Softa [21]2 years ago

5 0

Answer:

d = 4.8 units

Step-by-step explanation:

( $x_{1}$ , $y_{1}$ )

( $x_{2}$ , $y_{2}$ )

d = $\sqrt{(x_{2} -x_{1} )^2 + (y_{2} -y_{1} )^2}$

~~~~~~~~~~~

( - 3, 2.6 )

( - 3, - 2.2 )

d = $\sqrt{(-3+3)^2 +(-2.2-2.6)^2 }$ = √(- 4.8)² = 4.8 units

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diamong [38]

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3 years ago

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Answer:

Step-by-step explanation:

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3 years ago

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3 years ago

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Solve the equation for x, where x is a real number (5 points): 2x^2 + 7x - 9 = -3

Tanya [424]

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                              x = [ -7 ± √(7^2 - 4(2)(-6)) ] / ( 2(2) )
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3 years ago

Which of the following describes the polynomial function ??? HELP

JulsSmile [24]

Answer:

B. The function has an even degree.

Step-by-step explanation:

We have been given an image of a polynomial function. We are asked to choose the correct options about our given polynomial.

A. The function has a negative leading coefficient.

Upon looking at our given graph, we can see that it is an upward opening parabola, so leading coefficient can't be negative, therefore, option A is not true.

B. The function has an even degree.

Upon at our given graph, we can see that it is symmetric to y-axis, therefore it has an even degree polynomial and option B is the correct choice..

C. The function has zero turning points.

Upon looking at our given graph, we can see that as function approaches towards 0 from negative infinity it is decreasing. As function increases positive infinity from 0, it is increasing, therefore, our function has a turning point at $x=0$ , therefore, option C is incorrect.

D. The function has one x-intercept.

Since our function never intersects x-axis, therefore, function has no x-intercept and option D is incorrect as well.

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3 years ago