All categories

3 years ago

Which choice shows the image of quadrilateral WXYZ after a reflection over the y-axis followed by a translation down 2 units?

Mathematics

1 answer:

max2010maxim [7]3 years ago

7 0

Answer:

Choices are not provided, but you can answer the question as follows: take the coordinates of quadrilateral WXYZ and apply:

W(xW, yW) -> W'(-xW, yW-2)

X(xX, yX) -> X'(-xX, yX-2)

Y(xY, yY) -> Y'(-xY, yY-2)

Z(xZ, yZ) -> Z'(-xZ, yZ-2)

For example, if point W is located at (1, 1), W' would be located at (-1, -1)

Step-by-step explanation:

Reflection over the y-axis transforms point (x, y) into (-x, y)

Translation down 2 units transforms point (x, y) into (x, y-2)

You might be interested in

A cube made of an unknown material has a height of 9 cm. The mass of this cube is 3.645 grams. What is the density of this cube?

ehidna [41]

Answer:

$density = \frac{mass}{volume}$

mass = 3.645 g

volume = 9×9×9

= 729 cm³

density = 3.645/729

= 0.005 gcm^-3

Step-by-step explanation:

the volume is 729 cm³ cause the given height is 9cm and it is a cube. cube has equal sides so their lengths are the same.

volume = length × height × width

8 0

3 years ago

Marta told Maribel “The sum of fifty and half the number of oranges is the same as one-hundred-twenty.” Maribel wrote 50 (one-ha

IRINA_888 [86]

Answer:

Her error was that the half should have been multiplied by m, instead

$50 + \frac{1}{2}m = 120$

Step-by-step explanation:

Given

$Base\ Amount = 50$

$Rate = 0.05$

$Days = n$

So, we have:

$Base\ Amount + Rate * days = 120$

$50 + \frac{1}{2}m = 120$

Hence, the error in her workings is that she should have pre-inform her before God and man.

7 0

3 years ago

Read 2 more answers

Jessica is walking home from a friend's house. After two minutes she is 0.8 miles from home. Twelve minutes after leaving, she i

ycow [4]

Answer:

3 miles per hour

Step-by-step explanation:

Jessica is walking home from a friend's house.

After 2 minutes she is 0.8 miles from the home and after 12 minutes she is 0.3 miles away fro her house.

Her rate will be = (change in distance)/change in time

= (0.8-0.3)/(12-2)

= 0.5/10

= 0.05 miles per minute

Now we will convert timings from minutes to hour.

Or = 0.05×60

= 3 miles per hour

8 0

3 years ago

Evaluate each function.<br> 14) g(x)= 3x² - 1; Find g(-3)

Vilka [71]

Answer:

g(-3)= 26

Step-by-step explanation:

g(x)= 3x² - 1

g(-3) means use -3 for x in the given equation.

g(-3)= 3(-3)² - 1

g(-3)= 3(9) - 1

g(-3)= 27 - 1

g(-3)= 26

6 0

2 years ago

Triangle DEF is similar to triangle ABC. What is the length of segment EF? (HINT use scale factor) (Leave answer as a fraction)

Karo-lina-s [1.5K]

We have been given two similar triangles. We are asked to find the length of segment EF.

We know that corresponding sides of similar triangles are proportional, so we will use proportion to solve our given problem.

$\frac{EF}{DF}=\frac{BC}{AC}$

Upon substituting measure of our given side lengths, we will get:

$\frac{EF}{1}=\frac{5}{13}$

$EF=\frac{5}{13}$

Therefore, the length of segment EF is $\frac{5}{13}$ units.

4 0

3 years ago