Rechnung:
y=-2x²+4x+5
y=-2*(x²-2x-2,5)
y=-2*(x²-2*1x+1²-1²-2,5)
y=-2*[(x-1)²-3,5]
y= -2*(x-1)+7
S(1|7)
If triangle ABC has AB=4; BC=5cm; AC=6; what is angle C?
Schreibe mir Deine Lösung
8. In parallelogram ABCD, if BC=3x+1 and AD=4x-2, find the lengths of BC and AD.
9. If AB=2x+1, DC=x+5 and BC=2x-1, find all the sides of parallelogram ABCD. Find its perimeter.
6. In parallelogram ABCD, AC meets DB at O
a. If DO=3x-1 and OB=2x+1 , find the length of DB.
b. If AO=3x+1 and OC= 5x-3, find AC
7. In parallelogram ABCD, if ∠BAC= 42° and ∠BCA= 58°, find each angle of ABCD.
4.If in parallelogram ABCD, ∠A =(3x+3)° and ∠C=(4x-17)°, find the angles of ABCD.
5. In parallelogram ABCD, if ∠CAB = 35° and ∠BCA=65°, find the angles of ABCD.
That is a lot of work.
1. Find the three other angles of parallelogram ABCD if ∠ A is equal to: a. 75 degrees b. 62 degrees c. 95 degrees d. 82 1/2 degrees
What is the magic word? I think, please.
6(5x-3y)-4y(2x-1)+5xy-2(x-7y)=
30x-18y-8xy+4y+5xy-2x+14xy=
28x+11xy-14y
2X^2+11X=63
