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3 years ago

What combination of transformations is shown below?

Mathematics

1 answer:

scoray [572]3 years ago

7 0

Answer:

Correct answer is "reflection, then rotation".

Step-by-step explanation:

The figure shows the following two operations:

1) Reflection through central horizontal line. ( $1 \to 2$ )

2) Rotation with center at the upper left corner of the reflected figure. ( $2 \to 3$ )

Therefore, correct answer is "reflection, then rotation".

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Pleaseee help

Licemer1 [7]

Answer:

D : -5 ≤ x < 1

R : -4 ≤ y < 7

Step-by-step explanation:

In a graph, domain is always represented by the x-axis while the range is represented by the y-axis.

In this diagram, at x-axis, the dots are connected by -5 and 1. At y-axis, the dots are connected by -4 and 7.

● represents smaller than or equal to

○ represents smaller than

3 0

4 years ago

On multiple-Choice history Test, rita received a mark of 80%. She answer 32 correctly

Fofino [41]

Let total number of questions be x.

According to the question,

80% of x is 32

or 80/100 × x = 32

or x = 32 ÷ 80/100

or x = 32 × 100/80

or x = 32 × 10/8

or x = 4 × 10

or x = 40

So, total number of questions is 40.

3 0

3 years ago

Please help!!!! check for understanding:

Firlakuza [10]

Use Pythagoras’ theorem:
a^2+b^2=c^2
But we rearrange this formula to make it
c^2-a^2=b^2
So 25^2-15^2=b^2
625-225= b^2 = 400
You now need to find the square root of 400 to find the square root of b
sqrt of 400 is 20
So 20 is the missing length in this triangle

8 0

3 years ago

What is the slope and y intercept of y+3x=2y-x

Dmitry_Shevchenko [17]

4x=y
Slope:4
Y intercept: 0

8 0

3 years ago

Read 2 more answers

A university professor asked his class of 42 students when they had studied for his class the previous weekend. There responses

Basile [38]

ANSWERS:

a) 16 students

b) 25 students

c) 2 students

STEP BY STEP:

There are 42 students in total. This question can be solved by "Principal of Inclusion and Exclusion"

Question a)

The students that studied on Sunday in total with overlaps is 30. To figure out the students that ONLY studied on Sunday you need to first minus the overlaps in the combos:

the combos:

3, 10, 6, 2

Since the last combo included all of the other dates, we need to minus it:

1, 8, 4, 2

Now we can use the total of Sunday and minus the combos that includes Sunday:

30 - (4 + 2 + 8) = 16 students

Question b)

To figure out all the students that only studied on ONE day, not 2 not 3, just one day. We need to figure out the students that studied for Saturday and Friday using the same method before for figuring out Sunday:

Friday: 9 - 4 - 1 -2 = 2 students

Saturday: 18 - 1 - 2- 8 = 7 students

and now add them all together: 2 + 7 + 16 = 25 students

That is the total number of students that studied on one day.

Question c)

Now for the numbers of students that didn't study... We can just use the total to minus everything else!

42 - (25 + 1 + 4 + 8 + 2) = 2 students!!!

And thats all done! If you still don't get it, please ask!

7 0

3 years ago