Find the acute angle, in degrees, between the lines.y = 
x + 10 and y = - 
x - 18
A. 30°
B. 45°
C. 60°
D. 75°
Answer: C
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A line passes through the points src="https://sciemce.com/media/3/ppg__cognero__Section_3.1_The_Geometry_of_Lines__media__98d4b864-ee27-479b-bb4f-6a4bde638471.PNG" class="wirisformula" align="middle" style="vertical-align: middle;" data-wiris-created="true" varid="variable_id_field" variablename="impvar_d3747506c99d4618b96653cd7" /> lie on the line?
and 
. For what ?y value does the point
?
A. 
B. ?
C. ?
D. ?
Solve the equation by clearing the constant.13 = k - 3
A. k = 16 B. k = -10 C. k = 10 D. k = -16
Solve.A machinist has flat metal plate that is 7.359 cm thick. He laminates the metal plate with four more layers that are 3.236 cm, 4.518 cm, 4.884 cm, and 4.575 cm thick. He then grinds off 3.958 cm from the top of the plate, then 2.841 cm more, and finally another 4.987 cm. Find the new thickness of the plate.
A. 1.932 cm B. 26.384 cm C. 16.744 cm D. 12.786 cm
Find the area.
A. 63 ft2 B. 126 ft2 C. 49 ft2 D. 27 ft2