Answer:
Nicole is correct
Step-by-step explanation:
by multiplying the first equation by 3 it becomes:
3x + 6y =21
this can cancel the -3x in the second equation when adding them together
Answer:
csc 270° = cot 135°
Step-by-step explanation:
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it would be the first one
67,74,78,69,80,70,67,72,69
I hope this helps and I have a question are you using owschooling or something like that
<u>Given</u>:
Given that the triangle.
Let the length of the side a be 10 cm.
Let the length of the side b be 13 cm.
Let the measure of ∠C is 105°
We need to determine the area of the triangle.
<u>Area of the triangle:</u>
The area of the triangle can be determined using the formula,
Substituting a = 10, b = 13 and ∠C = 105°, we get;
Simplifying, we get;
Rounding off to 1 decimal place, we have;
Thus, the area of the triangle is 62.8 cm²
Answer:
<1= 45
Step-by-step explanation:
105+105+30+30=270
360-270=90
90/2=45