Answer:
I believe its 2/3
Step-by-step explanation:
Answer: First.
Step-by-step explanation:
Let's find the speed of the first airplane:
2800 ÷ 5 = 560 (miles per hour)
Let's find the speed of the second plane:
3885 ÷ 7 = 555 (miles per hour)
Thus, the first plane flies faster than the second.
Answer:
B,E and F
Step-by-step explanation:
- (B)A cross section parallel to the base is a square measuring 4 cm by 4 cm.
Since a cube has <u>equal base length</u>, any cross section parallel to the base will also have an equal base length.
- (E)A cross section perpendicular to the base through the midpoints of opposite sides is a square measuring 4 cm by 4 cm.
Since a cube has <u>equal side lengths</u>, any cross section parallel to the side will also have an equal base length.
- (F)A cross section that passes through the entire bottom front edge and the entire top back edge is a rectangle measuring 4 cm by greater than 4 cm.
Using Pythagoras Theorem

There the cross section will be a rectangle which measures 
Answer:
x = -16
Step-by-step explanation:
52= 1/2x+15−3.25x−7
Combine 1/2x and −3.25x to get −11/4 x.
52= −11/4x+15−7
Subtract 7 from 15 to get 8.
52=−11/4x+8
Swap sides so that all variable terms are on the left hand side.− 11/4x+8=52
Subtract 8 from both sides.
− 11/4x=52−8
Subtract 8 from 52 to get 44.
−11/4 x=44
Multiply both sides by − 4/11
the reciprocal of − 11/4
x=44(−4/11)
Express 44(−4/11 ) as a single fraction.
x= 44(−4)
Multiply 44 and −4 to get −176.
x= −176/11
Divide −176 by 11 to get −16.