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4 years ago

7

Describe the transformation from triangle DEF to triangle D′E′F′ in the figure. Question 17 options:

1 answer:

Vikentia [17]4 years ago

6 0

Answer:

C) Reflection about the origin

Step-by-step explanation:

DE points to the right and slightly down. D'E' points to the left and slightly up. The segments are parallel, not perpendicular, so represent a rotation of 180°, not 90°. If the figure were subject only to translation, these segments would point in the same direction.

The transformation is a reflection about the origin (C). (This is equivalent to a rotation of 180°.)

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solniwko [45]

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4 years ago

Plzz Help me!! Have to have this submitted by tonight!

Aliun [14]

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3 years ago

What is the next term of the following sequence? <br><br><br> 20, 10, 5, 21/2, ...

ycow [4]

Answer:

1 $\frac{1}{4}$

Step-by-step explanation:

Note there is a common ratio between consecutive terms, that is

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6 0

3 years ago

Consider this product. x^2-4x-21/3x^3+6x x^2+8x/x^2+11x+24 Which values are excluded values for the product?

lesya [120]

Using the domain, it is found that x = -8 is excluded for the product.

The domain of a function is the <u>set that contains all possible input values</u>.

In a fraction, the <u>denominator cannot be 0</u>.

In this problem, there are two fractions, and the points outside the domain, that is, the roots of the denominators, are excluded.

For the first fraction, they are:

$3x^2 + 6x = 0$

$3x(x + 2) = 0$

$3x = 0 \rightarrow x = 0$

$x + 2 = 0 \rightarrow x = -2$

Hence, x = -2(not an option) is excluded.

x = 0 can be factored with the numerator of the second fraction, so not excluded.

For the second fraction, the roots of the denominator are:

$x^2 + 11x + 24 = 0$

Which is a quadratic equation with <u>coefficients</u> $a = 1, b = 11, c = 24$ , hence:

$\Delta = b^2 - 4ac = 11^2 - 4(1)(24) = 121 - 96 = 25$

$x_1 = \frac{-b - \sqrt{\Delta}}{2a} = \frac{-11 - 5}{2} = -8$

$x_2 = \frac{-b + \sqrt{\Delta}}{2a} = \frac{-11 + 5}{2} = -3$

x = -3 can be factored with the numerator of the first fraction, so only x = -8 is excluded.

A similar problem is given at brainly.com/question/13136492

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3 years ago

Breakfast starts at 7:30 AM and ends at 8:20 AM. How long was breakfast?

olya-2409 [2.1K]

Answer

50 minutes

Step-by-step explanation:

8:20 - 7:30

7 0

4 years ago