Answer:
In ΔABC
AB
2
=AC
2
+BC
2
⇒BC
2
=x
2
=17
2
−8
2
⇒x=15m.
Step-by-step explanation:
Answer:
Step-by-step explanation:
The Empirical Rule states that 99.7% of data observed following a normal distribution lies within 3 standard deviations of the mean. Under this rule, 68% of the data falls within one standard deviation, 95% percent within two standard deviations, and 99.7% within three standard deviations from the mean.
Answer: A/D
Step-by-step explanation:
Answer:
76 birds
Step-by-step explanation:
Let x = the number of birds
Let y = the number of cats
x + y = 35 y = 35 - x
4.50x + 8.50y = 221.50 Multiply the whole equation by 100.
450x + 850y = 22150
450x + 850(35 - x) = 22150
450x + 29750 - 850x = 22150
-100x = -7600
x = 76 birds
Answer:
121 is a rational number because it can be expressed as the quotient of two integers: 121/ 1
Step-by-step explanation: