A bag contains 100 marbles: 30 are red, 25 are green, 15 are blue, 7 are yellow, and the rest are orange.

Mathematics

1 answer:

VARVARA [1.3K]3 years ago

3 0

Answer:

a.25 out of 100 chances

b. 0 out of 100 chances

c. 30 out of 100 chances

d. 7 out of 100 chances

Step-by-step explanation:

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Quadrilateral ABCD is rotated 90 degrees about the orgin. What are the coordinates of the quadrilateral A'B'C'D?

murzikaleks [220]

The coordinates of the object image are;

A {5,5}

B{5,1}

C{2,1}

D{1,5}

The rule for rotation of a point {x,y} through 90 degrees about the orgin, is that the object coordinates {x,y} change to image coordinates { y,-x}. This means the coordinates shift positions and the y coordinate acquires a negative sign. So in this case;

A {5,5}------- A' { 5,-5}

B{5,1}----------B' {1,-5}

C{2,1} ---------C' {1,-2}

D{1,5} ---------D' { 5,-1}

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