Answer:
-9/20
(Decimal: -0.45)
Step-by-step explanation: 1/2 -1/4
-2/5
= 1/-5 -1/4
=-1/5- 1/4
= -1/5 +-1/4
= -9/20
Answer:
Angles in right triangles must have measures between 0 and 90°. Angles of rotation can be any real number, which includes negative as well as positive values.
Step-by-step explanation:
Answer on E2020
Answer:
-2 to the third power is -8
-2 to the second power is -4
Step-by-step explanation:
-2 to the 3 power = -2× -2×-2
-2 to the second power is -2×-2
Answer:
2.1/√55
Step-by-step explanation:
simga divided by sample size