Answer:
699(0.90)(1.07)
Step-by-step explanation:
Given that:
Regular cost of couch = $699
Onsale percentage = 10%
Sales tax in purchase = 7%
Final price of couch :
New price at Selling percentage :
Regular price * (discount) * (sales tax percentage)
Regular price * (100% - 10%) * (100 + 7%)
699 * (1 - 0.1) * (1 + 0.07)
699 * 0.90 * 1.07
699(0.90)(1.07)
Answer:
Step-by-step explanation:
It appears to be the last step there that has evaded you. In the second line of work, you can see that what's in each set of parenthesis is exactly the same. Because of this, it is common and can be factored out. What's left is the 4x and the +5:
(5x - 3)(4x + 5)
That's factoring by grouping. It only works with polynomials that have an even number of terms so you can group them together in 2's.
Probably between obtuse angle or triangle because sometimes they trick you
But I'm not 100 percent sure
3 1/2 miles/ (1 1/4 hour)
= (7/2 miles)/ (5/4 hour)
= 7/2* (4/5) miles/hour
= 2.8 miles/ hour
The final answer is 2.8 miles/ hour~
Second step
PEMDAS
Parenthesis exponents division addition subtraction
