Answer:
D
Step-by-step explanation:
In the original expression = 37.4 - 54.9 = -17.5
So, we have to solve all the equations but 1 of them has to equal to -17.5
A) -54.9 + (-37.4) = -92.3
Remove parentheses
= -54.9 - 37.4
Subtract the numbers
-92.3
B) 54.9 - 37.4 = 17.5
Since 54.9 is greater than 37.4 just subtract normally
4 14
5 4. 9 < ------- Line up the decimal points like this
- 3 7. 4 <--------- Subtract the decimals
-----------------
1 7 . 5 <---------- This is the final answer to B.
C) 37.4 - (- 54.9) = 92.3
Change the sign to addition
=37.4 + 54.9
Add the numbers normally
54.9
+ 37. 4
--------------
92.3
D) 37.4 + (-54.9) = -17.5
Change the sign to subtraction
= 37.4 - 54.9
Subtract them normally (but as you can see you are subtracting a smaller number from a larger number so heres a trick that you can use switch the equation by putting the larger number in first like this....)
54.9 - 37.4 = 17.5 (REMEMBER the answer is not 17.5 because the original equation of D is reversed 37.4 - 54.9 so in this case your answer should be
- 17.5)
37.4 - 54.9 = -17.5
Your final answer is D because it matches 37.4 - 54.9.
Hope this helps!
option D recording the reaction time of participants in a study who were asked to press a button age as soon as they see a certain picture on a screen ASAP please
Answer:
c
Step-by-step explanation:
I just had the exact same question on a worksheet
Answer:
(8x-1) (x-1)
Step-by-step explanation:
8x² - 9x + 1
(8x - ) (x - )
We know it is minus because we have -9x
We have +1 so both have to be -
To fill in the blanks we put 1
The only combination is 1*1 =1
(8x-1) (x-1)
Lets check
8x^2 -x -8x +1
(8x^2 -9x+1
I think that the answer is A
