2 standard deviations contain 95% confidence. So thus you would have 4hrs in either direction. So the interval at which we could feel 95% confident is between 11-19hrs.
Answer:
86
Step-by-step explanation:
t = ten's digit u= one's digit
t + u = 14 t = 2u - 4
In the first equation substitute for t 2u - 4 that we find in the second equation above.
t + u = 14
2u - 4 + u = 14 Combine the u's
3u - 4 = 14 Now add 14 to both sides
3u = 18 Divide both sides by 3
u = 6. We found the unit's digit, now we will find the ten's unit by plugging in 6 for u in the first equation above.
t + u = 14
t + 6 = 14 Subtract 6 from both sides
t = 8
So, your answer is 86.
Answer: A is 45 degrees, B is 45 degrees, C is 90 degrees.
Step-by-step explanation: A triangle is 180 degrees, and those three numbers add to that. This would be considered a right triangle due to the 90 degree angle.
Answer:
k=4
Step-by-step explanation:
euqation of the graph
(1) g(x)= x+3
We have
(2) g(x)=f(x)+k
(3) g(x)=x-1+k
(1) =(3)
x+3 =x -1 + k
-x -x
3= -1+k
k= 4
Answer:
b. 8 inches wide and 25 inches long
Step-by-step explanation:
Here are the options
5 inches wide and 25 inches long
b. 8 inches wide and 25 inches long
c. 15 inches wide and 15 inches long
d 15 inches wide and 25 inches long
Area of a rectangle = length x width
10 x 20 = 200
first option
5 x 25 = 125 does not have the same area as the one lanu drew
second option
8 x 25 = 200 has the same area as the one lanu drew
third option
15 x 15 = 225 does not have the same area as the one lanu drew
fourth option
15 x 25 = 375 does not have the same area as the one lanu drew
