Answer:
Step-by-step explanation:
y = 2x^2 - 4x - 5.......if x = -2
so sub in -2 for x
y = 2(-2^2) - 4(-2) - 5
= 2(4) + 8 - 5
= 8 + 8 - 5
= 11 <==== y is 11
Answer: is the answer b? 84.5?
Step-by-step explanation:
The discriminant is <span>−<span>8
</span></span>f<span>(x)</span>=−3<span>x2</span>−2x−1
is of the form <span><span>a<span>x2</span>+bx+c</span>
</span>,with <span><span>a=−3</span>
</span>, <span><span>b=−2</span>
</span> and <span>c=−<span>1</span></span>
B) 2x+1 < 7 and -2x +1 < 9
C) -4 < x < 3
D) -4 <[equal to] x <[equal to] 3
Answer:
Step-by-step explanation:
Let the amount of rent is R
Calculate the value of R in reverse order of spending
- R = (92 + 57)*2 + 168 = 466
Correct choice is B
