Help! i’ll mark the right one as brainliest :)!
2 answers:
Answer:
I’ll tell you how to solve these so you can do it yourself easily. If you still don’t understand, tell me and I’ll help out more :)
The exponent—small number in the top corner of another number—means the number of times you multiply the number by itself.
Example:
3²
I have to multiply 3 by 3 twice, therefore I do 3x3 and get 9. 3² = 9!
The · is a multiplication sign and the parenthesis indicate you multiply as well.
I’ll do 4a for you:
I see the exponent is 2, so I have to write:
2/3 · 2/3
I solve that by multiplying the numerators (2x2) and the denominators (3x3).
2/3 · 2/3 = 4/9.
The answer is 4/9.
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Answer:
The coordinates of E are .
Step-by-step explanation:
The triangle ABC represents a right triangle as both sides AB and AC are orthogonal to each other. The side AB is in the y axis, whereas the side AC is in the x axis. The triangle is dilated with respect to the origin, in which point A is set.
Vectorially speaking, dilation is defined by the following operation:
(1)
Where:
- Point of reference.
- Original point.
- Dilated point.
- Dilation factor.
By applying this operation, point B becomes point D:
,
Lastly, we transform point C into point E by applying the same operation: ,
and
The coordinates of E are .