Multiply every answer by 3
7 x 3 = 21
21 x 3 = 63 etc.
The other box is A(4) and 3a4 ect.
Answer:
Given 7b²-21b-273=7, the solutions are x1 = 8 and x2 = -5.
Step-by-step explanation:
Given 7b²-21b-273=7, first you need to equal zero. So
7b²-21b-273-7=0 ⇒ 7b²-21b-280 = 0
The secon step is to find the solutions applying Bhaskara´s formula x = (-b ± √(b²-4×a×c))/2×a
Where a=7, b= -21 and c= -280
After you identified each term, you have to replace it on the formula so....
x = (21 ± √(21² - 4×7×(-280)))/2×7 ⇒ x = (21 ± √(441 + 7840))/14 ⇒ x = (21 ± √8281)/14
Then you will obtain two values for x, called x1 = 8 and x2=-5.
(12 U.S. quarts) - (8 U.S. cups) = 10 U.S. quarts
Done! your answer is 10 us quarts.
Answer:
Use the formula
a
n = a
1 + d ( n − 1 )
to identify the arithmetic sequence.
a
n = 2
n + 10
Step-by-step explanation: