Answer:
Step-by-step explanation:
4). a). If the diagonals of a parallelogram are congruent, then it must be a RECTANGLE.
b). If the diagonals of a parallelogram are perpendicular, then it must be a SQUARE.
c). If the diagonals of a parallelogram bisect the angles of the parallelogram, then it must be a RHOMBUS.
d). If the diagonals of a parallelogram are perpendicular and congruent, then it must be a SQUARE.
e). If a parallelogram has four congruent sides, then it must be a SQUARE.
5). Given quadrilateral SELF is a rhombus.
a). All sides of a rhombus are equal,
Therefore, ES = EL = 25
b). Diagonals of a rhombus bisects the opposite angles,
Therefore, m∠ELS = m∠FLS
3x - 2 = 2x + 7
3x - 2x = 7 + 2
x = 9
c). Diagonals of the rhombus bisect the opposite angles, and adjacent angles are supplementary.
m∠ELF = 2(m∠ELS) = 2(2y - 9)
m∠LES = 2(m∠LEF) = 2(3y + 9)
And 2(2y - 9) + 2(3y + 9) = 180
(2y - 9) + (3y + 9) = 90
5y = 90
y = 18
<h3>
Answer: A) 20+10h</h3>
Work Shown:
It grows 2h inches for 4 weeks, so 2h*4 = 2*4h = 8h is the amount it grows for those 4 weeks.
Then it grows h inches per week, for 2 more weeks, giving h+h = 2h additional inches.
Overall, 8h+2h = 10h is the amount the plant grows.
It starts off at 20 inches so its final height is 20+10h
6.4n^2 is correct. math papa helps
Answer:
Ratio of boys is 13.5 i think
Step-by-step explanation:
Answer:
Radius: 18
Area of Circle: 1017 or 1018(depends on whether you used the pi function or 3.14)
Step-by-step explanation:
Formula for the circumference and area:
C= 2πr
A= πr^2
