Answer:
Y x 3 - 3 = Y + 57
30 would be your answer
add 3 to both sides so it becomes Y x 3 = Y + 60 and 60/2=30
30 x 3 = 90-3=87
30 + 57 = 87
Hope this helps (I am twelve and I know how to do this)
Step-by-step explanation:
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Answer: a
Step-by-step explanation:
(6z³+3z²-4z+8) - (4z²-3z+2)
all of the numbers in the second set of parenthesis are going to have their signs switched so...
(6z³+3z²-4z+8) + (-4z²+3z-2)
now you add the two sets of parenthesis
<u>6z³ - z² - z + 6</u>
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Yes when lined up correctly the points make up a right triangle