Answer:
the above is a function
Step-by-step explanation:
function is a mapping from a set A to B, which associative every element of A with unique image in B.
Here, f(-3)=6, f(-5)=6
f(3)= -2, f(-5)=1
all elements have image.
so this is a function.
Answer:
The correct answer is A.
Step-by-step explanation:
Given that a weather researcher compared Dublin, Ireland to Madrid, Spain, and she found that Dublin had a mean average temperature of 56.1ºF with a mean average deviation of 6.4ºF, while Madrid had a mean average temperature of 68ºF with a mean average deviation of 12.1ºF, the following conclusions can be drawn:
68 is higher than 56.1, so clearly Madrid has a higher average temperature than Dublin.
In turn, 12.1 is greater than 6.4, with which Madrid has a greater temperature variation than Dublin.
Answer:
The answer to your question is:
x = 1; y = 1, z = 0
Step-by-step explanation:
-2x + 2y + 3z = 0 (I)
-2x - y + z = -3 (II)
2x + 3y + 3z = 5 (III)
I and II. Multiply II by 2
-2x + 2y + 3z = 0
(2)(-2x - y + z = -3 )
-2x + 2y + 3z = 0
-4x - 2y + 2z = -6
-6x + 5z = - 6 (IV)
II and III. Multiply II by 3
-6x - 3y + 3z = -9 (II)
2x + 3y + 3z = 5 (III)
-4x + 6z = -4 (V)
IV and V. Multiply IV by 2 and V by -3
-12x + 10z = -12
12x - 18z = 12
- 8 z = 0
z = 0
Substitute z in IV
-6x + 5(0) = -6
-6x = -6
x = 1
Substitute x and z in I
-2(1) + 2y + 3(0) = 0
-2 + 2y = 0
2y = 2
y = 1
Answer:
3/5
Step-by-step explanation:
Scale factor = 9/15 = 3/5
C.25 because 11-6 is five 13-8 is five and 15-10 is five so 25-20 is five
