An organization will give a prize to a local artist. The artist will be randomly chosen from among 7 painters, 4 sculptors, and
1 answer:
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Answer:
The student incorrectly simplified .
Thus, option D is correct.
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Step-by-step explanation:
The formula to determine the Perimeter of a rectangle of width w and length l is expressed as:
In other words, the perimeter can be determined by multiplying the length and width by 2 and adding the result.
In our case, the dimensions of a rectangle are and
.
Here is the student's solution:
The student made an error in calculating , because
are not like terms.
Hence, can not be simplified to
Therefore, the student incorrectly simplified .
Thus, option D is correct.
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<u>Here is the correct Solution:</u>
Answer:
See below
Step-by-step explanation:
<u>Given points:</u>
- A (3, -1) , B (9, 2) , C (6, -4)
First, plot the points on the coordinate plane (see attached)
<u>We see that AB and BC look the same. Let's find their length:</u>
- AB =
- BC =
We showed that AB = BC = 3√5, so the triangle has two sided of the same length, therefore is isosceles.
