Answer: 2s + 1
Explanation:
1) Given expression: 6s² - 7s- 5 = (3s - 5) ( )
2) The missing factor ( ) is such that when it is multiplied by (3s - 5) the product is 6s² - 7s- 5.
3) Since the first term of the first factor starts with 3s, the first term of the second factor shall be 2s (since they have to yield 6s²). Then, you can write:
6s² - 7s- 5 = (3s - 5) (2s + )
4) The second term of the missing factor is positive because the product (+)(-) = (-) which is the sign of the third term of the polynomial.
5) The second term is such that when multiplied by - 5 is equal to the last term of the polynomial (also - 5), so this second terms is +1.
And you get: 6s² - 7s- 5 = (3s - 5) (2s + 1)
6) You can expand, using distributive property to confirm the result:
(3s - 5) (2s + 1 ) = (3s)(2s) + (3s)(1) - (5)(2s) -(5)(1) = 6s² - 7s- 5, which confirms the result.
Answer:
the answer is C
Step-by-step explanation:
magazine = $4.99
book = $12.99
DVD = $17.99
total bill
= magazine + book + DVD
= $4.99 + $12.99 + 17.99
= $35.97
tax 6%
amount of tax
= 6% × total price
= 6/100 × $35.97
= $2.16
total bill including 6% tax
= total bill + amount of tax
= $35.97 + $2.16
= $38.13
Your answer is -3.
5-2(4)
5-8
-3
Answer:
(x, y, z) = (-2, 5, 1) solve the equation by using substitution as it is easier.
Answer:
The second term:
c(2) = 30
Step-by-step explanation:
c(n) = c(n - 1) + 10
c(1) =20
c(2) = c(1) + 10 = 20 + 10 = 30
