B. (x-5) is a factor.
<u>Step-by-step explanation:</u>
To find out the relationship among the factor and an expression, we have to factorise it as,
2x² - 7x - 15
Here, sum = coeff. of x = -7
Product = constant × coeff of x² = -15 × 2 = -30
Now we have to find 2 numbers, which satisfies the above 2 conditions are -10 and 3.
-10 +3 = -7
-10× 3 = -30
2x² - 7x - 15
= 2x²- 10x + 3x - 15
Taking common terms as,
= 2x(x-5) +3(x - 5)
= (2x+3) (x-5)
So the expression is factorized and (x-5) is one of the factors of the expression.
Answer:
y = mx + c
Step-by-step explanation:
m = gradient
c = y-intercept
Answer:
The recursive equation that models Barry's account balance is equal to
1.900+(n-1)150
or
150n+1,750
Step-by-step explanation:
Let
n -----> the number of months
f(n) -----> Barry's account balance
we know that
700-150-400=$150
so
The recursive equation that models Barry's account balance is equal to
f(n)=1,900+(n-1)150
f(n)=1,900+150n-150
f(n)=150n+1,750
