4 years ago

How do i solve this ?

1 answer:

4 0

You can choose a couple of the x-values and plug each into all of the x's in each equation on the right. Then see which equations give the y-values equal to the y's adjacent to the 3 x-values you used. I chose x=-4 and x=8. Only the 2nd, 3rd, and 5th equations matched with both.

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State the coordinates of the reflection of the isosceles trapezoid across the line of reflection y = –x.

Oxana [17]

Based on the given image, the coordinates of the pre image are:
A (-3,4)
B (-1,4)
C (1,1)
D (-5,1)

When you do a reflection in the line y = -x ; (x,y) coordinate becomes (-y,-x)

A (-3,4) → (-(4),-(-3)) → A' (-4,3)
B (-1,4) → (-(4),-(-1)) → B' (-4,1)
C (1,1) → (-(1),-(1)) → C' (-1,-1)
D (-5,1) → (-(1),-(-5)) → D' (-1,5)

I attached what the reflection will look like over line y = -x

5 0

4 years ago

Joe was driving on the highway a car ahead of him was driving far below the speed limit so he decided to pass. In the first seco

spayn [35]

Answer:

537/100s.

Step-by-step explanation:

8 0

3 years ago

80% of your employees work in production. What fraction of the employees work in production?

kow [346]

It would be 80/100
simplified:4/5 or 8/10 (its the same thing)

8 0

3 years ago

Read 2 more answers

The length of the Boston Marathon is 138,35 ft. each stride, or step, by a particular runner 3 ft long. Does the number of strid

lilavasa [31]

Simply divide 13,835 by 3 to see if it goes in evenly.

5 0

3 years ago

Jason had $32. He spent all the money on buying 4 CDs for $x each and 2 magazines for $y each. If Jason had bought 5 CDs and 2 m

Leni [432]

You can set up two equations from the information given. I will set them up for you:

32 = 4x + 2y
36 = 5x + 2y

Let's solve the first equation to come up with a value for y.

32 = 4x + 2y
32 - 4x = 2y
16 - 2x = y

Now we plug y into the other equation.

36 = 5x + 2(16-2x)
36 = 5x + 32 - 4x
4 = x

Now we have our real x value and we can plug it into the first equation.

32 = 4(4) + 2y
32 = 16 + 2y
16 = 2y
8 = y

Since x = 4 and y = 8, you get the final coordinates of (4,8).

Your answer is the second statement provided above.

3 0

3 years ago