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Vadim26 [7]
2 years ago
11

Simple answers please

Mathematics
1 answer:
charle [14.2K]2 years ago
4 0

Answer:

  • A'(4, -4)
  • B'(0, -3)
  • C'(2, -1)
  • D'(3, -2)

Step-by-step explanation:

The coordinate transformation for a 270° clockwise rotation is the same as for a 90° counterclockwise rotation:

  (x, y) ⇒ (-y, x)

The rotated points are ...

  A(-4, -4) ⇒ A'(4, -4)

  B(-3, 0) ⇒ B'(0, -3)

  C(-1, -2) ⇒ C'(2, -1)

  D(-2, -3) ⇒ D'(3, -2)

_____

<em>Additional comment</em>

To derive and/or remember these transformations, it might be useful to consider where a point came from when it ends up on the x- or y-axis.

A point must have come from the -y axis if rotating it 270° CW makes it end up on the +x-axis. A point must have come from the x-axis if rotating it 270° makes it end up on the +y axis. That is why we write ...

  (x, y) ⇒ (-y, x) . . . . . . the new x came from -y; the new y came from x

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5(2z-2)=9(z+2) how to solve it
IceJOKER [234]

Answer:

z=28

Step-by-step explanation:

10z-10=9z+18

-9z        -9z

z-10=18

+10   +10

z=28

7 0
3 years ago
Write an algebraic expression for the word expression: <br> 15 divided by the sum of "d" and 3
Yuki888 [10]

the answer is

15/(3+d)

8 0
3 years ago
35/40 reducing fractions
laila [671]

Answer: 7/8

What you have to do here is to find the highest number which can be divided by both. Or you have to divide both the numerator and denominator until it can not be divided by any number anymore. You can do this by finding the highest common factor (<u>HCF)</u> of both the number, 35 and 40.

Highest Common Factor: HCF of two or more numbers is the greatest factor that divides the numbers. For example, 2 is the HCF of 4 and 6.

So, the highest number which divides 35 and 40, is 5. Now 35 divided by 5 is 7 and 40 divided by 5 is 8. The final answer is 7/8 and there is no more numbers which can divide both of them by a specific number.


 ∩_∩
(„• ֊ •„)♡
┏━∪∪━━━━┓
   hope it helped
┗━━━━━━━┛

6 0
2 years ago
What is 31×15-11+40 =​
Vedmedyk [2.9K]

Answer:

494

Step-by-step explanation:

You can use Symbolab to solve equations of all types with explanations

3 0
3 years ago
Read 2 more answers
1. Which range of numbers is most appropriate for the y-axis scale and interval on a graph given the
nata0808 [166]

Answer:

Option B.

Step-by-step explanation:

We need to find the range of numbers is most appropriate for the y-axis scale and interval on a graph for given table.

From the given table it is clear that the minimum value of y is 10 and the maximum value of y is 34.

It means 10 and 34 must be included in the Range.

In option C and D 34 in not included in the range, so these options are incorrect.

In option A, 10 is the minimum value of range and interval of 10 is not possible for the range 10-35, because it contains only multiple of 10 on the y-axis. So, this option is incorrect.

In option B, both 10 and 34 are included and interval of 5 is possible for range 0-35.

Therefore, the correct option is B.

4 0
3 years ago
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