Eric estimated 28x48 by finding 30x50. His estimate was 1,500,but he says the actual product will be greater than that amount.Is
1 answer:
Answer:
Eric is not correct.
Step-by-step explanation:
We have been given that Eric estimated by finding
. His estimate was 1500, but he says the actual product will be greater than that amount.
To find if Eric is correct or not, let us see how to estimate an answer.
While estimating our given numbers we will round to nearest tenth and change the digit to the right of the rounding place to 0.
As 8 is greater than 5, so we will round 28 to 30 and 48 to 50.
Since we are rounding up, so our estimated answer will be greater than actual answer, therefore, Eric is not correct.
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Answer:
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Step-by-step explanation:
X= y^2/2+3y+13/2
y=
y= -
in standard form: -3
Answer:
The rate of change of area is 35360 m /year
Step-by-step explanation:
Let the width of rectangle be w
We are given that a rectangle that is twice as long as it is wide
So, Length of Rectangle = 2w
Area of rectangle A = Length \times Breadth =
Differentiating area with respect to time
We are given that and w = 260
Hence the rate of change of area is 35360