Answer:
<em>You have 164 stamps.</em>
Step-by-step explanation:
Let the no. of my stamps be 'x'
Half of x subtracted by 26 = 56
- 26 = 56
= 56 + 26 = 82
= 82 x 2 = 164
Let's check
- 26 = 56
= 56 + 26
164 = 82 x 2
164 = 164!
The answer is correct.
Answer:
-2,-9
Step-by-step explanation:
im not 100 perent sure ifthis is right or not
Answer:
length of an arc =1 /3 unit or 0.3unit
Step-by-step explanation:
to calculate the length of an arc, having it in mind that the arc is a portion of the circumference of a circle.
circumference of a circle = 6unit
Ф = 20°
recall,
the formulae for finding the length of an arc
= 2πr(Ф/360)
assuming that r is the radius of the circle
so, the circumference of a circle is given to be = 2πr
6 = 2πr
r = (6/2π)
length of an arc = 2πr(Ф/360)
remember that r = (6/2π)
length of an arc = 2π(6/2π) [20°/360°]
length of an arc = 6 × 20°/360°
length of an arc = 120°/360°
length of an arc = 1/3unit
Answer:
95% confidence interval for the mean weight of newborn elephant calves is between a lower limit of 240.87 pounds and an upper limit of 247.13 pounds.
Step-by-step explanation:
Confidence Interval = mean + or - Error margin (E)
mean = 244 pounds
sd = 11 pounds
n = 50
degree of freedom = n - 1 = 50 - 1 = 49
Confidence level = 95%
t-value corresponding to 49 degrees of freedom and 95% confidence level is 2.010
E = t×sd/√n = 2.010×11/√50 = 3.13 pounds
Lower limit = mean - E = 244 - 3.13 = 240.87 pounds
Upper limit = mean + E = 244 + 3.13 = 247.13 pounds
95% confidence interval is between 240.87 and 247.13 pounds.
