Every time you see r, replace it with -3. Every time you see s, replace it with 5. You are working wth exponents, which means that the little number next to the big number (exponent) is how many times you multiply the big number by itself.
For example, 5^3=5x5x5=125 (isn't one of the problems you are trying to solve)
If the expodent is negative, then you divide. S<span>so if it's like 5^-3, you do 1 ÷ 5 ÷ 5 ÷ 5 = 0.008 </span>
Hope this helps! :)
The missing length of the triangle is 35 units.
According to the question,
We have the following information:
We have a figure of triangle where a line is drawn parallel to the base of the triangle.
Now, we know that in this case the ratio of the corresponding sides of the triangle will be equal.
Let's take the missing length to be x units.
So, we have the following expression:
x/28 = 15/12
Using the cross multiplication method:
12x = 28*15
x = 28*15/12
Dividing by 12 on both sides of the equation:
x = 35 units
Hence, the missing length of the triangle is 35 units.
To know more about missing length here
brainly.com/question/23913066
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Answer: 
Step-by-step explanation:
Since, In the case of rhombus has the congruent pair of opposite angles.
Thus in Rhombus, LMNO, 
And, 
But, 
And, 
Therefore, 
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⇒
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