Answer:
Step-by-step explanation:
2x + 5 = -x - 1
3x + 5 = -1
3x = -6
x = -2
y = 2 - 1
y = 1
(-2, 1)
Answer: Start at six and go right three times
Step-by-step explanation:
Answer:
b) Both 1,004 and 251 are greater than 10.
Step-by-step explanation:
p = 0.80
n = 1255
In order to use CLT the distribution of 
should have np and n(1-p) greater than 10.
np = 1255*0.80
np = 1004
n(1-p) = 1255*0.20
n(1-p) = 251.00
Since Both 1004 and 251 are greater than 10,
Answer:
306
Step-by-step explanation:
Answer:
The temperature in the morning was 34 degrees.
Step-by-step explanation:
I am going to attribute a variable to each of these tempertures, and build the equations.
Mateo read the thermometer this evening. The temperature was 52 degrees.
I am going to call the evening's temperature x.
So x = 52.
This temperature was 3 degrees less than the temperature in the afternoon.
I am going to call the afternoon's temperature y.
So
x = y - 3
52 = y - 3
y = 52 + 3
y = 55
The afternoon temperature was 21 degrees greater than the temperature in the morning.
The morning's temperature is z.
y = 21 + z
55 = 21 + z
z = 34
The temperature in the morning was 34 degrees.
