To be considered similar, two polygons have corresponding sides that are equal. always never sometimes

To be considered similar, two polygons sometimes have corresponding sides that are equal.

"  Two figures are said to be similar if the ratio of each of the corresponding  sides of the two figures are equal "

Hence, if both the figures have sides of equal length then obviously the ratio of each of the corresponding sides is equal i.e. 1:1.

Also, the ratio may be same if the original figure is dilated by some scale factor.

This means that now in this case the corresponding sides are not equal.

linearly: 8560 bacteria

exponentially: approximately 75233 bacteria

step-by-step explanation:

assuming it is not exponential (we would have some really complicated logarithms), let's say it is linear. then, after 5 hours, it increased by 1200 bacteria, so every hour it increases by 240 bacteria. this means that after 19 hours, we get 19 * 240 + 4000 bacteria or 3800 + 760 + 4000 = 7800 + 760 = 8560 bacteria.

because it says round your answer, i will do this exponentially (with a calculator, of course). first, we need to find how much it multiplies by every hour, by taking the 5th root of 52/40 or 13/10. this is approximately 0.167. we still need to add 1 to this, because we are multiplying by that number, not adding that amount of the number. now, we just calculate 4000 * (1.167)^19. use a calculator to get approximately 75232.6, or 75233.

equal to

step-by-step explanation: