Answer: A=20
Step-by-step explanation:
3×A=30+30............eqn 1
3A=60
A=60/3
A=20
Substitute A=20 into equation 1
3x20= 30+30
Answer:
The lengths of the diagonals is 22.
Step-by-step explanation: Since the shape is a rectangle, the diagonals are congruent, we can form the equation 3x+7=5x-3.
Solve for x; 2x=10-->x=5.
Plug 5 into one of the equations. 3(5)+7=22. 5(5)-3=22
Hope this helps!
:)
Answer: 64
Step-by-step explanation:
Step-by-step explanation:
for a perpendicular,
make x the subject.
8x=11-3y
x=11/8 +3/8
for a perpendicular, the gradient
x= -1/m
x= (-1/11/8) - (-1/3y/8)
x= 8/3y -8/11.
therefore the gradient (m) = 8/3y -8/11.
Answer:
Acute triangle
x = 3
GH = 19
Step-by-step explanation:
