alex says 3/4 is equal to 15/20 why is he correct 1.adding the same # to the numerator and denominator to 3/4 is 15/20. 2. multi
plying the numerator and denominator in 3/4 by the same # equals 15/20
1 answer:
Answer:
2
Step-by-step explanation:
3x5 is 15 and 4x5 is 20
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It would be 6 because the other short side is 6 so it should be 6 units
Answer:
i'm pretty sure the answer is -
BC = 8.1
Step-by-step explanation:
Answer:
I hope this helps you
Step-by-step explanation:
y=x+9
x=y-9 f^-1 (x)= x-9
x=5 f^-1 (5)=5-9 = -4
f (f^-1))=f (-4)=?
x= -4
f (-4)=-4+9
f (-4)= 5
We have two ways to solve this question
1)sin45=4√2 /x
√2 /2 =4√2 /x
X=8
2)Pythagorean theorem
In a 45-45-90 degree triangle
(4√2)^2+(4√2)^2=x^2
X=8
