To find the product of a reasonable estimate of two decimal numbers, round each decimals to the nearest whole number and then perform the multiplication.
For example:
3.2 x 5.7
Estimated answer
3.2 will be rounded down to 3 and 5.7 will be rounded up to 6
⇒ 3 x 6 = 18
Actual Answer
3.2 x 5.7
=18.24
Answer:
Height of the ball after 3 seconds = 27.4 feet.
Step-by-step explanation:
h(t) = -4.9t^2 + 22t + 5.5
h(3) means the height of the ball at time 3 seconds after the ball was thrown.
h(3) = -4.9(3)^2 + 22(3) + 5.5
= 27.4 feet
The answer is 271.04 because you have to do 242 times .12 then add your answer to 242.
Answer:
3334650.54 euros
Step-by-step explanation:
We can calculate the area of the triangle knowing its sides by means of Heron's formula:
A = 
Where p is the semi-perimeter is equal to:

now, we replace:

p = 518.5
now, we replace this value and we are left with:
A = 
A = 50440.94 m^2
Now to know the price, we multiply by the price of the square meter:
50440.94 * 66.11 = 3334 650.54
In other words, the value of the parcel is 3334 650.54 euros
They are multiplying by 4 each set of numbers