Answer:
<h2>
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Step-by-step explanation:
To find f(−1) , substitute the values of x that's - 1 into f(x). That is for every x in f(x) replace it with - 1
That's
We have the final answer as
Hope this helps you
Answer:
20
Step-by-step explanation:
2x-13 = x/2 +17
add -x/2
2x-x/2-13=x/2-x/2+17
2x-x/2 -13=17
add 13
2x-x/2 -13+13 =17+13
3x/2 = 30
multiply by 2
3x=2*30
divide by 3
x= 60/3
x=20
You would find the origin and go over eight up 1 then repeat
Answer:
<em>Part A</em>: Explain why x = 5 makes 4x - 1 ≤ 19 true but not 4x - 1 < 19
<em>Part B: x=9</em>
Step-by-step explanation:
<u>Part A</u>: Because the first one is less than or equal to 19 and the other is just less than.
x = 5
TRUE: 4x - 1 ≤ 19 = 20-1 ≤ 19 = 19 ≤ 19
19 is less than or equal to 19 so its true
FALSE: 4x - 1 < 19 = 19 < 19
19 is not greater than 19
<u>Part B:</u>
5x + 2 = 47 subtract 2 from both sides
5x = 45 divide both sides by 5
x = 9
To check we can plug it back in
5x + 2 = 47
5(9) + 2 = 47
45 + 2 = 47
47 = 47
TRUE
(5.15 pound) x (3.40 buck/pound) = <em>17.51 buck</em>