Answer:x=10Y+80/3+2 ????
Step-by-step explanation:
Letter B is stating that -3 degrees C is less than 1 degree C
Number one is 13,464 miles long
Answer:
7.67
Step-by-step explanation:
Given the data :
Week_sales_Forecast ___|error|_ |error|²
1 _____15
2 ____ 16
3 ____ 19
4 ____ 18
5 ____ 19 ____ 17 _______ 2____4
6 ____ 20 ___ 18 ________2____4
7 ____ 19 ____19 ________0____0
8 ___ 22 ____ 19 ________3____9
9 ___ 15 ____ 20 ________5___ 25
10 __ 21 _____19 ________ 2 ___ 4
Mean squared error :
(4 + 4 + 0 + 9 + 25 + 4) / 6
= 46 / 6
= 7.666
= 7.67
Hey there :)
We know to add or subtract a fraction, the denominators should be the same
Here let us only work with the denominators
w² + w - 2 and w²+ 7w + 10
↓ Factorise both ↓
( w - 1 )( w + 2 ) ( w + 2 )( w + 5 )
We see that ( w + 2 ) is common for both denominators
We need to multiply the first fraction by ( w + 5 ) and the second by ( w - 1 ) to have the least common denominator
( w - 1 )( w + 2 )( w + 5 ) and ( w + 2 )( w + 5 )( w - 1 )
Your answer will be option 1
