From the given function, to explain the correct answer I will plot the graph for :
y(t)=-t^2+14t-40
thus the graph will be as shown in the figure:
From the graph we deduce that the correct statement is:
y'(t)=-2t+14=0
thus
t=7
thus
y(7)=0
thus the correct statement is:
<span>c. The average rate of change over the interval 6≤t≤8 is 0</span>
Step-by-step explanation:
x is greater than or equal to 10.
x ≤ 10 and x < 10 options are incorrect, x is not less than 10.
x > 10 is incorrect, x can be greater but x can be equal to 10 as well.
X ≥ 10 is correct. x is greater than or equal to 10.
<u>Key:</u>
> - Greater Than.
< - Less Than.
≥ - Greater Than or Equal to.
≤ - Less Than or Equal to.
Answer:
Stefan spent 108.9$ and made 12.1$
Step-by-step explanation:
Hey I'm Aiden I can help you, I will take Brainlest, Your welcome :)
take 10% of 121 and subtract it from 121 and you get the price he paid and made
Answer:
10.8
Step-by-step explanation:
i used a calculator
Hi there!
Here are all the steps into simplifying this expression :
<u>(4 × 2)</u> + 15x + 49
Do the multiplication first → 4 × 2 = 8
<u>8</u> + 15x + <u>49</u>
Add the similar terms together → 8 + 49 = 57
15x + 57
Since there are no longer similar terms, the expression can not be simplified anymore and you are left with this expression as an answer :
15x + 57
There you go! I really hope this helped, if there's anything just let me know! :)
