If you put in the substitutions it would be 2*2-(2*2*4)+(3*2)-(-4*2)+(2*4).
Simplified further by multiplying it would be 2*2-8+6--8+8
the negative 8 could be simplified further since the negatives cancel out so you'll have 2*2-8+6+8+8.
Then using the order of operations you would multiply the 2's together first to get 4 so you have 4-8+6+8+8.
After that it's simple addition giving you an answer of -26.
I'm not sure if you're looking for the final answer or just the equation with substitutions but there's both.
Answer:
Psychology textbooks = 98 and physics textbooks = 294
Step-by-step explanation:
Let there are x psychology textbooks sold.
No of physics textbooks sold = 3x
ATQ,
A textbook store sold a combined total of 392 physics and psychology textbooks in a week.
x + 3x = 392
4x = 392
x = 98
It means there are 98 psychology textbooks sold and 3x = 3(98) = 294 physics textbooks sold.
THe answer is A.... 42.4 times 10.5 is 445.20
Answer:
92% Confidence interval: (0.7078,0.7722)
Step-by-step explanation:
We are given the following in the question:
Sample size, n = 500
Number of travelers who favor tight security, x = 370
92% Confidence interval:
Putting the values, we get:
Answer:
all them are multiplied by 0.50. 0.50x0.50= 0.25 and then 0.25x0.50= 0.125. y= X• 0.50
