Answer:
the one you have selected is correct
Step-by-step explanation:
When you don't know the answer on a multiple-choice questions it is generally best to guess a random answer instead of leaving it blank.
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The answer to (1+_÷7+4)÷8= 4/7 is -3 I believe
It's a bit hard to explain but I hope this helps
<span>A=1/2(a+b)h for h.
First, you need to get rid of 1/2, so divide both sides by 1/2.
A/(1/2) = (a + b)h
You can simplify the </span>A/(1/2) by multiplying by the reciprocal of 1/2, so 2/1.
2A = (a + b)h
Now divide both sides by (a+b).
2A/(a+b) = h