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3 years ago

When reflecting a line segment or shape it will change in size and shape if done correctly. True or False

1 answer:

4 0

A reflection across a line is a rigid transformation. Therefore the shape of the original object will not change. Because of this, you know that it would have the same measure as the original angle.

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What is the degree of polynomial blow? x^6+3-2x^2+4x^7-4x

MA_775_DIABLO [31]

Answer:

Step-by-step explanation:

hello :

the degree of polynomial is : 7

7 0

3 years ago

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Karo-lina-s [1.5K]

I don’t understand what are u saying pls translate

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3 years ago

Use the discriminant to describe the roots of each equation. Then select the best description. 2m2 + 3 = m double root real and

Jlenok [28]

Answer:

The roots of the equation 2m²+3=m are non-real roots.

Step-by-step explanation:

Given equation:

2m²+3=m

2m²-m+3=0

Here, from the equation we can obtain the following values:

a = 2, b = -1, c = 3

Discriminant of an equation is given as:

D = b²-4ac

= (-1)²-4(2)(3)

= 1 - 21

= -20

Discriminant can tell what kinds of roots the equation have.

In our case, the discriminant is less than 0.

When D < 0, the roots of the equation are complex conjugates.(non-real)

8 0

3 years ago

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Which of the following functions gives the radius, r(v), of a conical artifact that is 20 inches tall as a function of its volum

nalin [4]

By calculus or elementary geometry, we know that the formula for the volume of a cone, given pi (the constant), its height h and its radius r is:
$V=pi*h*r^2/3$
Lets solve this relation for the radius:
$3V=pi*h*r^2
$
$\frac{3V}{pi*h} =r^2$
$\sqrt{\frac{3V}{pi*h}} = r$
Now we have found a general formula that gives us the radius of a cone, given its volume and height. We need only substitute height (20in) and pi=3.14 to get the numerical equation: r=0.2185* $\sqrt{V}$

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3 years ago

The following system has a solution of x=-5, y=9, z=11.

Bess [88]

False - plug in the bramble for the first equation and you get 40 = 12 which is not true

7 0

3 years ago