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Vanyuwa [196]
3 years ago
12

What are the coordinates of the point (2, −3) after a counterclockwise rotation of 90° about the origin?

Mathematics
2 answers:
elena-s [515]3 years ago
7 0
The rule for a 90* counterclockwise rotation around the axis is: (x,y) --> (-y,x) so your answer would be (2,-3) --> (3,-2)
8090 [49]3 years ago
7 0

(3,2) 90* rotation counterclockwise about the origin

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One number is 8 more than another number, and their sum is 20. Find the numbers.
melomori [17]

Answer:

First number=6

Second number=14

Step-by-step explanation:

Let the first number be x

So the second number is x+8

So the sum of the two is

X+x+8=20

2x+8=20

2x=20-8

2x=12

X=12/2

=6

The second number will x+8

So 6+8=14

First number=6

Second number=14

6 0
3 years ago
Read 2 more answers
In Δ A B C, the measure of the largest angle is 32 less than 3 times the smallest angle. The measure of the middle angle is 8 mo
AlladinOne [14]

Answer:

52degrees

Step-by-step explanation:

Let the measure of the largest angle be x

middle angle be y

smallest angle be z

Since the sum of angle in a triangle is 180 degrees, hence;

x + y + z = 180 .... 1

If the measure of the largest angle is 32 less than 3 times the smallest angle, then;

x = 3z - 32

3z = x+ 32

z = x+32/3 ..... 2

If he measure of the middle angle is 8 more than half the measure of the largest angle, then;

y = x/2 + 8 .... 3

Substitute 2 and 3 into 1;

x + x/2 + 8 + (x+32)/3 = 180

multiply through by 6

6x + 3x + 48 + 2(x+32) = 1080

9x + 48 + 2x + 64 = 1080

11x + 112 = 1080

11x = 1080-112

11x = 968

x = 968/11

x = 88 degrees

Get the middle angle y;

Since y = x/2 + 8

y = 88/2 + 8

y = 44 + 8

y = 52 degrees

Hence the measure of the middle angle is 52degrees

5 0
3 years ago
Calculate the area of this trapezium. ​
Alla [95]
It the talk empty side it will be 8 and the line will be 4 tell me if I am wrong
3 0
3 years ago
Is the decimal for 4/3 a repeating decimal? Explain
Butoxors [25]

Answer:

Step-by-step explanation:

Divide 4 by 3 and you will get 1333333333... as an answer.It is a repeating decimal . Place a line over the second 3  to show that it is a repeating decimal.

4 0
3 years ago
Read 2 more answers
Please answer this question
Gelneren [198K]
A=2(LW+LH+WH)

A=2((7/8)(1/3)+(7/8)(2/5)+(1/3)(2/5))

A=2(7/24+14/40+2/15)

A=14/24+28/40+4/15

A=7/14+7/10+4/15  210

A=(105+147+56)/210

A=308/210

A=(210+98)/210

A=1 98/210

A=1 7/15
8 0
2 years ago
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