The length of time it takes for a pendulum to make one complete swing varies directly with the square root of the length of the pendulum. A pendulum that's 4 inches completes one swing in 1 second. If a grandfather clock has a pendulum that completes 1 swing in 2 seconds, then how long is the pendulum of the grandfather clock?

saya gak ngerti ini bahasa Inggrisnya

Step-by-step explanation:

oh semoga ada yang bantuin jawab y

0 is its x and y coordinate

d

step-by-step explanation:

hello and welcome!

so, when we see the words "proportional" along with a table, we need to know that we're looking numbers that divide by the same thing.

looking at this table, we simply have to do a trial and error, and divide to see which numbers have the same quotient. if you look at choice a & c, they both have equal quotients for three of the numbers, with one exception, so those can't be the answer. looking at b, there is no similarity, so that can't be it. then, we see d; if you divide all the numbers in the table, you'll see that they all divide by two, which is a proportional relationship, and our answer!

also, always remember that the x will always be the number that goes into y, and somewhere behind this table, is a formula. for this specific table, the formula would be:

since our x-value is being divided by two to get the y-value. and if they were to ask for more numbers in the series, this is the formula you would use to find them.