I need help with question 9 please!

Mathematics

2 answers:

Aloiza [94]3 years ago

7 0

You have a right angle so you would find 90-46=44 then you work backwards:subtract 4 from 44 which is 40 then divide by 2 you will get 20 your answer is A

ankoles [38]3 years ago

3 0

The answer is A. 20 you know that the equation plus the angle that equals 46 are equal to 90 degrees so..... use the formula
2x+4+46=90

simplify by adding 4 and 46
2x+50=90
subtract 50 from both sides
2x=40
divide each side by 2
x=20

and that's how you get your answer

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