Answer:
18
Step-by-step explanation:
Sum of the exterior angles of a polygon =360degree
⇒ 5x+4x+3x+2x+6x=360dregee
⇒ 20x=360degree
⇒ x=18degree
Answer:
95.64% probability that pledges are received within 40 days
Step-by-step explanation:
Problems of normally distributed samples are solved using the z-score formula.
In a set with mean
and standard deviation
, the zscore of a measure X is given by:

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
In this problem, we have that:

What is the probability that pledges are received within 40 days
This is the pvalue of Z when X = 40. So



has a pvalue of 0.9564
95.64% probability that pledges are received within 40 days
Answer:
5 5/6 miles
Step-by-step explanation:
There are a few ways to do this, but one way is to find out how many miles per hour the car can travel. For this we do 35/3(distance/time) which is 11 2/3 mph. Now, to find half an hour we can divided 11 2/3 divided by 2, which is
5 5/6 miles.
Answer:
x=0, y=1, z=2
Step-by-step explanation:
x+y-z=-1
x+y+z=3
+_______
2x + 2y = 3 -1
2(x + y) = 2
x + y = 1
x + y + z = 3
1 + z = 3
z = 2
3x -2y -2 = -4
3x - 2y = -2
if x + y = 1, 2x + 2y equals = 2
3x - 2y = -2
2x + 2y= 2
+________
5x = 0
x = 0
x + y + z = 3
0 + y + 2 = 3
y = 1
Hope this helps ^-^