Answer:
y=-3
Step-by-step explanation:
31=4-9y
9y=4-31
9y=-27
y=-27/9
y=-3
Answer: y = I x l + 1/2
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
Answer:
210
Step-by-step explanation:
V = B h
B = 8 1/3 * 4 1/5 = 35
V = 35*h
h= 6
35*6 = 210
The <em><u>correct answers</u></em> are:
90°, 180° and 270°
Explanation:
Squares have rotational symmetry at 90°. This can be found by dividing the number of degrees in a circle, 360, by the number of sides, 4:
360/4 = 90
This means that at all multiples of 90, the square will rotate onto itself. This means that 90, 180 and 270 are all correct.
