Where are the following ⁉️
97-25=72 then you would divide 72 by 8 leaving 72/8=9 each chair weighs 9lbs.
1: 1.6 2: 28 Step by step something whatever
Answer:
The jet will overtake the plane at 8:25 am.
Step-by-step explanation:
The distance
traveled by the plane after time
since it took off is modeled by the equation
![D_p = 270t](https://tex.z-dn.net/?f=D_p%20%3D%20270t)
And the distance
traveled by the jet after time
since the plane took off is given modeled by the equation
<em>(we set this up such that at </em>
<em> </em>
<em>)</em>
Now, the jet will overtake the plane when
:
![460t-460> 270t](https://tex.z-dn.net/?f=460t-460%3E%20270t)
![460t-270t> 460](https://tex.z-dn.net/?f=460t-270t%3E%20460)
![190t>460](https://tex.z-dn.net/?f=190t%3E460)
![\boxed{t> 2.42\: hours }](https://tex.z-dn.net/?f=%5Cboxed%7Bt%3E%202.42%5C%3A%20hours%20%7D)
Which is 2 hours and 25 minutes after 6:00 am, or at 8: 25 am; therefore, the jet will overtake the plane at 8:25 am.
Answer:
"2"
Step-by-step explanation:
The quadratic equation has the form:
![ay^2 + by + c](https://tex.z-dn.net/?f=ay%5E2%20%2B%20by%20%2B%20c)
Looking at the expression given, if we can replace "(x^3 + 1)" with another variable, such as u, then it will create a quadratic equation in the form shown above.
Let's replace "(x^3 + 1)" with u and check if it creates a quadratic:
![16(x^3 + 1)^2 - 22(x^3 + 1) -3=0\\16u^2 -22u-3=0](https://tex.z-dn.net/?f=16%28x%5E3%20%2B%201%29%5E2%20-%2022%28x%5E3%20%2B%201%29%20-3%3D0%5C%5C16u%5E2%20-22u-3%3D0)
yes, this works because the equation we got in u falls in the quadratic category.
Answer choice 2 is right.