<span>option A is correct for construction of perpendicular bisector of MN alison has to Place the point of the compass on point M and draw an arc, using a width for the opening of the compass that is equal to 1/2MN on both sides and then join arcs by straight line</span>
Answer:
3 = 9
Step-by-step explanation:
Simplifying 3 + -6a = 9 + -6a Add '6a' to each side of the equation. 3 + -6a + 6a = 9 + -6a + 6a Combine like terms: -6a + 6a = 0 3 + 0 = 9 + -6a + 6a 3 = 9 + -6a + 6a Combine like terms: -6a + 6a = 0 3 = 9 + 0 3 = 9 Solving 3 = 9 Couldn't find a variable to solve for.
7.
I: when no unit, assume radians
II: hmm, 0 to pi/2 radians is 1st quadrant, pi/2 to pi is 2nd, pi to 3pi/2 is 3rd and 3pi/2 to 2pi is 4th
pi/2<1.57<pi so it is in 2st quadrant
III:
cos is negative here because cos is the x axis
IV. no because the value of cos(1.75rad) should be negative
8.
I: from 0 to 90 is 1st
from 90 to 180 is 2nd
from 180 to 270 is 3rd
from 270 to 360 is 4th
so it is in 2nd quadrant
II: sin is positive here because sin is the y axis
III: sin should be positive here so a negative value is not reasonable
IV: maybe she put 125 without putting the degrees and the calculator thought that it was radians
No, the quotient of an integer divided by a non-zero integer is not always a rational number.
