Si-Ready Equivalent Expressions & the Distributive Property - Quiz - Level F
• The first floor of a tiny house has a length of 11 feet. The width of the kitchen is 7 feet and the width
of the bathroom is 4 feet. The expression 11(7 + 4) represents the total area in square feet.
• Write an expression to represent the
total area as the sum of the areas of
each room.
7 ft
4 ft
11(7 + 4) =
7 + 11.
?
11 ft
A = 11(7 + 4)
7
8
9
x
4
5
6
1
2
3
0
(-)

At wind speeds above 1000 centimeters per second (cm/sec), significant sand-moving events begin to occur. wind speeds below 1000 cm/sec deposit sand and wind speeds above 1000 cm/sec move sand to new locations. the cyclic nature of wind and moving sand determines the shape and location of large dunes. at a test site, the prevailing direction of the wind did not change noticeably. however, the velocity did change. fifty-nine wind speed readings gave an average velocity of x = 1075 cm/sec. based on long-term experience, σ can be assumed to be 245 cm/sec. (a) find a 95% confidence interval for the population mean wind speed at this site. (round your answers to the nearest whole number.) lower limit cm/sec upper limit cm/sec