Answer:
no
Step-by-step explanation:
Answer:
The average acceleration of the cyclist was 0.6 m/s².
Step-by-step explanation:
Acceleration:
The rate change of velocity per unit time is call the acceleration of the object.
![a=\frac{v-u}t](https://tex.z-dn.net/?f=a%3D%5Cfrac%7Bv-u%7Dt)
u= initial velocity
v= final velocity
t= time taken change of velocity.
During the final 5 seconds of a race cyclist increased her velocity from 4m/s to 7 m/s
Here v= 7 m/s and u=4 m/s t=5 seconds
![\therefore a=\frac{7\ m/s-4 \ m/s}{5s}](https://tex.z-dn.net/?f=%5Ctherefore%20a%3D%5Cfrac%7B7%5C%20m%2Fs-4%20%5C%20m%2Fs%7D%7B5s%7D)
![=\frac{3}{5} \ m/s^2](https://tex.z-dn.net/?f=%3D%5Cfrac%7B3%7D%7B5%7D%20%5C%20m%2Fs%5E2)
=0.6 m/s²
The average acceleration of the cyclist was 0.6 m/s².
Answer:
![(1, -2)](https://tex.z-dn.net/?f=%281%2C%20-2%29)
Step-by-step explanation:
<u>Step 1: Set the second equation into the first
</u>
![x + (-2x) = -1](https://tex.z-dn.net/?f=x%20%2B%20%28-2x%29%20%3D%20-1)
![x - 2x = -1](https://tex.z-dn.net/?f=x%20-%202x%20%3D%20-1)
![-x / -1 = -1 / -1](https://tex.z-dn.net/?f=-x%20%2F%20-1%20%3D%20-1%20%2F%20-1)
![x = 1](https://tex.z-dn.net/?f=x%20%3D%201)
<u>Step 2: Solve the second equation
</u>
![y = -2(1)](https://tex.z-dn.net/?f=y%20%3D%20-2%281%29)
![y = -2](https://tex.z-dn.net/?f=y%20%3D%20-2)
Answer: ![(1, -2)](https://tex.z-dn.net/?f=%281%2C%20-2%29)
Answer:
x= −1
/2 or x=4
Step-by-step explanation:
This is ALGEBRA, equations, factoring and zero property. ok.. let's solve this step-by-step
2x^2−7x=4
<u>Step 1: Subtract 4 from both sides.
</u>
2x^2−7x<u>−4 </u>=4 <u>−4
</u>
2x^2−7x−4=0
<u>Step 2: Factor left side of equation.
</u>
(2x+1)(x−4)=0
<u>Step 3: Set factors equal to 0.
</u>
2x+1=0 or x−4=0
x= −1
/2 or x=4
(BTW, there are supposed to be two answers, it's factoring)
Sorry if the format is not clear, but I hope this helped (really feel you, algebra can be brain-striking)!! Please leave a comment, rating and/or mark as the brainliest-whichever you think I deserve! Thank You :)