I can’t answer if you don’t show the multiple choice...
My answer was wrong, delete this answer or disregard
Answer:
x=3y-2 substitute is easier to solve the equation
Step-by-step explanation:
given x=3y-2.............(1)
x+3y=4................(2)
put x=3y-2 in equation (2)
3y-2+3y=4
6y-2=4
+2
6y=6
y=1
x=3y-2
x=3(1)-2=1
x=3y-2 substitute is easier to solve the equation answer
Answer:
sine A = four-fifths
Step-by-step explanation:
You have a rectangle triangle ABC with hypotenuse AB 35, side CB 28 and side CA 21. The angle C is 90°.
In order to calculate sin A, you take into account that:

The opposite side to angle A is side CB = 28
Hypotenuse = 35
You replace the numeric values of the hypotenuse and side BC in the formula for sinA:

In order to simply the fraction, you divide both numerator and denominator by 7:
hence, the answer is
sine A = four-fifths
The answer is 27 because not only does it refer to the number line sequence it doesn't actually mean a big number comes behind it. what ever it starts with,it multiplies the same pass the big number