Answer:
(a)z=-1
(b)48.5 pounds
(c)61.5 pounds
Step-by-step explanation:
Given:
Mean, μ = 55 pounds
Standard deviation,σ = 6 pounds.
(a)For a dog that weighs 49 pounds.
x=49 pounds
The z-score
(b)When a dog has a z-score of -1.09
The weight of a dog with a z-score of -1.09 is 48.5 pounds.
(c)When a dog has a z-score of 1.09
The weight of a dog with a z-score of 1.09 is 61.5 pounds.
Answer:
-15√10
Step-by-step explanation:
Rewrite.
-3√5² · 10
Pull terms out from under the radical.
-3( |5| √10)
-3(5√10)
Multiply
-15√10
<em>good luck, i hope this helps :)</em>
Ok so lets say we have a system of equations:
y = x + 1
x + y = 5
All you would do is plug in what is equal to the variable so:
x + x + 1 = 5
Then you would just simplify and solve
2x + 1 = 5
-1 -1
_________
2x = 4
-- --
2 2
x=2
2x+5=11
2 times x and 5 is 11.
It is false that the sum of two negative numbers is less than one.
