Geometry Help please

Select the correct answer from each drop-down menu.

In the figure, all, and both lines are intersected by transversal Complete the statements to prove that m<1=m<5

allb (given)

m21 + m23 = 180° (Linear Pair Theorem)
m25+ m26 = 180° (Linear Pair Theorem)
m21 + m23 = 25+ 26(blank)
m 23 = m26 (blank)
m21 = m 25 (Subtraction Property of Equality

Options (for both blanks)

A) Transitive property of equality quality
B) Alternative interior angles theorem
C) Alternate exterior ankles theorem
D)Vertical angles theorem

Air is to be cooled in the evaporator section of a refrigerator by passing it over a bank of 0.8-cm-outer-diameter and 0.4-m-long tubes inside which the refrigerant is evaporating at -20°c. air approaches the tube bank in the normal direction at 0°c and 1 atm with a mean velocity of 4 m/s. the tubes are arranged in-line with longitudinal and transverse pitches of sl- st 1.5 cm. there are 30 rows in the flow direction with 15 tubes in each row. determine (a) the refrigeration capacity of this system and (b) pressure drop across the tube bank. evaluate the air properties at an assumed mean temperature of -5°c and 1 atm. is this a good assumption?

During a steady flow process, the change of energy with respect to time is zero. a)- true b)- false

Acertain flow of air (at stp) has a velocity distribution given by v i (in ft/s). if this flow is going through a 4 ft square area in the yz-plane (centered at the origin), what is the mass flow rate (in lbm/s)?