9514 1404 393
Answer:
x^2 +4x -21
Step-by-step explanation:
Substitute the given expressions and simplify.
f(x) + g(x)
= (x^2 +3x -28) +(x +7)
= x^2 +(3+1)x +(-28 +7)
= x^2 +4x -21
The function has a maximum at (1, 3).
_____
You know it is not a minimum because the coefficient of the squared term is negative.
You know the vertex is (1, 3) because you match the pattern to
.. y = a(x -h)^2 +k
which has its vertex at (h, k).
<em>24p² + pq - 23q² = </em>
<em>= 24p² + 24pq - 23pq - 23q²</em>
<em>= 24p(p + q) - 23q(p + q)</em>
<em>= (p + q)(24p - 23q)</em>
<em />
<em />
Answer:
Option a
Step-by-step explanation:
Given that Seth just opened a checking account. His account includes an ATM card.
With ATM card
d) he can withdraw money from any ATM centre provided sufficient balance is kept in his checking account
b) he can deposit money for fixed denominations normally in multiples of 100 in the ATM centre with ATM card
c) he can give the card with pin in any shop to purchase an item instead of paying cash.
Hence b,c,d are not right answers.
a) transfer money is not possible using ATM card.
Only with netbanking transfer of money is possible
Option a is right answer
Use distribution
-5t - 30 + 7t = 100
Combine like terms
2t - 30 = 100
Add 30 to both sides
2t = 130, t = 65
Solution: t = 65
