Answer:
1. angle measure- 90 degrees
fraction of a whole turn- 4/12 or 1/4
2. angle measure- -90 degrees
fraction of a whole turn -4/12 or -1/4
3. angle measure- 360 degrees
fraction of a whole turn- 12/12 or 1 whole
4. angle measure- 180
fraction of a whole turn- 6/12 or 1/2
Step-by-step explanation:
As we know that :
so, over here
plugging the value of i² as -1
<span>Rules for rotating points about the origin
1. The point (a,b) rotated 90° counterclockwise about
the origin
becomes (-b,a).
</span><span>A′ (-1, 3) B′ (-2, 2) C′ (-2, 1) D′ (-1, 1)
</span>A (a,b)-----------------A′ (-b,a)=(-1, 3)----------->A( 3,1)
B (a,b)-----------------B′ (-b,a)=(-2, 2)----------->B( 2,2)
C (a,b)-----------------C′ (-b,a)=(-2, 1)----------->C( 1,2)
D (a,b)-----------------D′ (-b,a)=(-1, 1)----------->D( 1,1)
Answer:
a) 31 pupils
b)18
Step-by-step explanation:
you should create a Venn diagram to represent your information.Then after putting your information in correctly. For a) you'll add all the numbers in the Venn diagram including 2, which is outside the Venn diagram,then you'll get 29.. Subtract 29 from 50
I hope this helps
Answer:
8.9 = z
Step-by-step explanation:
11 = 2.1 + z - subtract the 2.1 from the 11
