The answer is 150 parents. Because 450/3=150
d) You have a <u>difference of squares</u>:
49y² - 9 = (7y)² - 3²
Recall the identity,
a² - b² = (a - b) (a + b)
So,
49y² - 9 = (7y - 3) (7y + 3)
e) Pull out the common factor 3 from each term:
3x² - 3x - 90 = 3 (x² - x - 30)
Now use the <u>sum-product method</u>. Notice that we can write 30 = 5 • 6, and 5 - 6 = 1, so
3x² - 3x - 90 = 3 (x + 5) (x - 6)
f) Same as in (e), use the <u>sum-product method</u>. Notice that 42 = 7 • 6, and -7 - 6 = -13, so
x² - 13x + 42 = (x - 7) (x - 6)
1/4 is equal to 0.25. so you can multiply 0.25 and 268 to get your answer of 67
<u>Answer:</u>
31 dollars
<u>Step-by-step explanation:</u>
460 miles in total ÷ 23 miles per gallon of fuel = 20 gallons
20 gallons x $1.55 a gallon = $31 dollars
Hopefully this helped! Sorry if wrong! You are loved and you are beautiful/handsome!
-Bee
