Gena wants to estimate the quotient of –21.87 divided by 4.79. which expression shows the best expression to estimate the quotient using front-end estimation?

Step-by-step explanation:

A good estimation always starts from the nearest whole numbers. This is a front-end for we maintain one number, -22 for the -21.87 and 5 and we place zeros to the right of it.

Since -21.87 is closer to -22.00, and 4.79 is closer to 5.00

Then

So, We can see that from 0.16 our estimative was quite close.

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step-by-step explanation:

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step-by-step explanation:

y = | -2(-2) |     →     y = | 4 |     →     y = 4       ⇒   (-2, 4)

y = | -2(-1) |     →     y = | 2 |     →       y =   2       ⇒   (-1, 2)    

y = | -2(0) |     →     y = | 0 |     →       y = 0         ⇒   (0, 0)

y = | -2(1) |   c →     y = | -2 |     →     y =   2         ⇒   (1, 2)    

y = | -2(2) |     →     y = | - 4 |     →     y =   4         ⇒   (2, 4)