similar-6x3, 5x3, 12x15
not similar;different shapes-9x15, 3x5
not similar;different types of ratios-3x4
Fraction of students that opted for French = 
The total number of students = 150
Fraction of students that opted for German = 
Fraction of students that opted for Italian = 
Fraction of students that opted for French = 1 - Fraction of students that opted for German - Fraction of students that opted for Italian
Fraction of students that opted for French = 
Fraction of students that opted for French = 
Fraction of students that opted for French = 
Learn more here: brainly.com/question/18819021
A number has fixed number of factors but infinite number of multiples
Ex:-
Take a number 12
It has factors 1,2,3,4,6,12
It is fixed.
But
It has multiples 12,24,36,48,60...
It is infinite
Answer:
-1
Step-by-step explanation:
solution:
(-2 , -1) = (x1 , y1)
(-1 ,-2) = (x2 , y2)
we know that,
slope = (y2 - y1)/(x2 - x1)
=(-2 - -1)/ (-1 - -2)
=(-2 + 1) / (-1 + 2)
= -1/1
=-1
slope = -1
Below represents the proof that the quadrilateral QRST is a parallelogram
<h3>How to prove that QRST is a parallelogram?</h3>
The coordinates are given as:
Q = (-1,-1)
R = (2,9)
S = (-4,5)
T = (-7,-5)
Calculate the length of each side using:

So, we have:




The above computations show that opposite sides are equal.
Next, we determine the slope of each side using:

So, we have:




The above computations show that opposite sides are parallel, because they have equal slope
Hence, the quadrilateral QRST is a parallelogram
Read more about parallelograms at:
brainly.com/question/3050890
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