Above the graph
look at them
7x-y <span><</span>3
x-y<span><</span>4
2x-9y>2
4x+7y>3
dashed boundary line means it does't include htat means taat the symbol is < or >
cross out first 2
one way is to graph the lines as equations and shade accordingly
2x-9y>2
y<2/9x+2/9
shade on bottom
4x+7y>3
y>-7/4x+3/9
shade on top
aswer is 4x+7y>3
Answer:
x = 50°
y = 50°
z = 80°
Step-by-step explanation:
working out x:
angles on a straight line add up to 180°
x + 130° = 180°
subtract 130 on both sides
x = 180° - 130°
x = 50°
working out y:
two vertical lines means that both sides are equal, so both angles are also equal (it's an isosceles triangle). This means that y is the same angle as x = 50°
y = 50°
working out z:
the sum of a triangle add up to 180°
add up the angles of x and y and equate to 180°
50 + 50 + z = 180
100 + z = 180
subtract 100 on both sides
z = 180 - 100
z = 80°
1/2 because 25 ÷ 25 = 1 and 50 ÷ 25 = 2
Answer:
True, they may not be congruent
Step-by-step explanation:
A figure cannot be determined as congruent from three angles alone. In order for two shapes to be congruent, all corresponding parts must be congruent. This means all the sides and angles of the two shapes must be the same in order for the two shapes to be congruent. If we know all the angles are the same, the sides could still be different lengths, so this does not prove congruency.
Answer:
x=-1
Step-by-step explanation:
because 2^3 is 8
and when you do -1+4 you get left with 3
so x=-1
