All categories

3 years ago

If a point P(–1, –1) is reflected across the line y = –2, what are the coordinates of its reflection image?

1 answer:

8 0

Since the line of refrection is a horizontal line, the x-coordinate of the image will be the same as the x-coordinate of the point P(-1, -1). P(-1, -1) is one unit above the line y = -2, hence the image will be one unit below the line y = -2. Therefore the coordinate of the image is (-1, -3)

You might be interested in

I need help to find the lcm of 81 and 3

velikii [3]

Answer:

81 is the LCM of 81 and 3

Step-by-step explanation:

81 is the smallest (least) number that both (common) 81 and 3 "go into" (multiple)

81 goes into 81.

3 goes into 81.

81 is the smallest number that they both go into.

8 0

2 years ago

Read 2 more answers

Jill, Meg and Beth are sister's. Jill is 2 years younger than Meg. Beth is half as old as Meg. Let m represent Meg's age. Write

pshichka [43]

Answer:

Two other algebraic expressions based on this situation are:

$J = m-2$

$B = \frac{m}{2}$

Step-by-step explanation:

Let m represent Meg's age.

Jill is 2 years younger than Meg.

Let J represents Jill's age

Jill's age $J = m-2$

Beth is half as old as Meg

Let B represents Beth's age

Beth's age $B = \frac{m}{2}$

So, two other algebraic expressions based on this situation are:

$J = m-2$

$B = \frac{m}{2}$

4 0

3 years ago

One number is eight less than three times another number. If the sum of the numbers is 20, find the numbers.

mamaluj [8]

Answer:

7 & 13

Step-by-step explanation:

Let the first number be x

2nd number = 8 less than 3 times the other

2nd number = 3x - 8

Their sum = 20

X + 3x - 8 = 20

4x -8 = 20

Collect like terms

4x = 20+8

4x = 28

Divide both sides by 4

4x/4 = 28/4

X = 7

First number = 7

2nd number = 3x - 8

= 3(7) - 8

= 21 -8

= 13.

Therefore the numbers are 7 and 13

Pls mark as brainliest

4 0

3 years ago

For a certain map, the scale shows that 1 cm on the map equals 2.50 km on earth's surface. two towns on the map are 4.75 cm apar

Julli [10]

<span>In this problem, to find the answer we have to setup a series of ratios that relate the scale to real life distance. We know that 1cm = 2.50km, so that ratio would be 1cm/2.5km. For two towns that are 4.75cm apart on the map, we set a ration of 4.75cm/x km, where x is the actual distance. Now we set the ratios equal to each other and solve for x. 1/2.5=4.75/x where x = 4.75*2.5/1 = 11.875 and rounding up we get 11.88 km. The two towns are actually 11.88 km apart from each other.</span>

3 0

3 years ago

What is 1.6 in fraction form?

viva [34]

As an improper fraction, it is $\frac{8}{5}$ .

5 0

3 years ago