Answer:
It helps you know if the answer is reasonable because when you do the work and get your answer, you can check if it is close to your estimate, and if it is, it is most likely correct. On the other hand if it is not close to the estimate it is most likely wrong, unless you estimated incorrectly.
Step-by-step explanation:
2^10 = 1024 possible ways to answer the test
Answer:
B
Step-by-step explanation:
x² + 9x
to complete the square
add ( half the coefficient of the x- term )² to x² + 9x
= x² + 2(
)x + ( )²
= x² + 9x + 
← the value of c
= (x + )² ← a perfect square
Answer:
55/72 feet squared
Step-by-step explanation:
The area of a rectangle is Length x Height, or Width x Height.
Here, we have a width of 5/6 feet and a height of 11/12 feet.
We multiple 5/6 and 11/12 to get 55/72 feet squared.
Answer:
147bags=3days
?bags=5 1/2days
<u>147</u><u>×</u><u>11</u><u>/</u><u>2</u>
3
<u>1617</u><u>÷</u><u>3</u>
2
<u>1617</u><u>×</u><u>1</u>
2 3
=539/2
=269 1/2 bags or 269.5bags
