PLEASE HELP MY SIS IS BREAKING DOWN CRYING

Mathematics

1 answer:

kodGreya [7K]2 years ago

6 0

Answer:

f(1) = 4

Step-by-step explanation:

f(1) means let x=1 and find the y value at that point on the graph

At x=1 there is an open circle and a closed circle. The open circle means that the function does not have a value at that point, so we use the closed circle

f(1) = 4

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Edi plays 1/4 of a song in 1/8 of a minute how many minutes will he need to play a full song

Neporo4naja [7]

Answer:

Let's see what to do buddy...

Step-by-step explanation:

$first \: \: \: \frac{1}{4} \: \: \:of \:a \: song \: needs \: \frac{1}{8} \: \: minute. \\ \\ second \: \: \: \frac{1}{4} \: \: of \: a \: song \: needs \: \frac{1}{8} \: minute \: too. \\ \\ also \: the \: third \: and \: fourth \: \: \: \frac{1}{4} \: \: \: of \: a \: song \: need \: \frac{1}{8} \: minute \: . \\ \\ so \: we \: have \: completly \: have \: 4 \times \frac{1}{8} \\ \\ which \: means \: edi \: needs \: 4 \times \frac{1}{8} = \frac{4}{8} = \frac{1}{2} \: minute \: to \: play \: all \: the \: song.$