-5x + 5y = 40 -20x +20y =160 -5x + 5(8) = 40
4x + 3y = 24 20x +15y =120 -5x + 40 = 40
35y = 280 -5x =0
y = 8 x = 0
Hope you understood this
Answer:
The value of f(1) is smaller than the value of f(3)
Step-by-step explanation:
<u><em>The correct question is</em></u>
Given the function f(x) = 2x^2 + 3x + 10, find f(1) and f(3). Choose the statement that is true concerning these two values.
The value of f(1) is the same as the value of f(3).
The value of f(1) cannot be compared to the value of f(3).
The value of f(1) is larger than the value of f(3).
The value of f(1) is smaller than the value of f(3)
we have

step 1
Find out the value of f(1)
substitute the value of x=1 in the function f(x)
so
For x=1


step 2
Find out the value of f(3)
substitute the value of x=3 in the function f(x)
so
For x=3


step 3
Compare the values
37> 15
so
f(3) > f(1)
or
f(1) < f(3)
therefore
The value of f(1) is smaller than the value of f(3)
Answer:
The answer is B
Step-by-step explanation:
I got it right on the test
Answer:
42 + 2n ≥ 80
Step-by-step explanation:
Given,
Naomi's earnings for one day = $ 42,
Also, she earns extra $2 for each CD she sells,
Thus, the extra earning for n CDs = 2n dollars,
So, her total earning for a day if she sells n CDs = ( 42 + 2n ) dollars,
If Naomi wants to earn at least $80 per day,
Her total earning ≥ 80 dollars,
⇒ 42 + 2n ≥ 80
Which is the required inequality.
Answer:40 seconds for what
Step-by-step explanation: