Answer:
a = 60
Step-by-step explanation:
The two angles form a right angle so the add to 90 degrees
a+30 =90
Subtract 30 from each side
a = 90-30
a = 60
Answer:
it's the second one because if c repeats the number it will repeat 10 six times it like
Step-by-step explanation:
10 x 6 which equals 60
Answer:
Length of other base = 42 cm
Step-by-step explanation:
h = 24 cm
One of its base a = 30 cm

b = 72 - 30
b = 42 cm
Answer:
(-2,7) reflects to (-2,-7)
(3,9) reflects to (3, -9)
(7,2) reflects to (7,-2)
(-3,9) reflects to (-3,-9)
Step-by-step explanation:
in reflection across the x-axis the x value of the coordinate stays the same and the y value is negated to show it been reflected
hold up I’ll answer in a moment