Answer:
B and C
Step-by-step explanation:
B: Normally 3/7 would be bigger, but since it's negative -2/7 is greater than -3/7.
C: 0 is greater than anything negative.
Is it a true or false? If yes, the answer is false
If u have to solve the answer will be hx=x.2+kx=x-hk2
Answer:
A = 708 mm^2
Step-by-step explanation:
![A=\frac{a+b}{2} h\\\\A=\frac{19+40}{2} *24\\\\A=\frac{59}{2} *24\\\\A= 708](https://tex.z-dn.net/?f=A%3D%5Cfrac%7Ba%2Bb%7D%7B2%7D%20h%5C%5C%5C%5CA%3D%5Cfrac%7B19%2B40%7D%7B2%7D%20%2A24%5C%5C%5C%5CA%3D%5Cfrac%7B59%7D%7B2%7D%20%2A24%5C%5C%5C%5CA%3D%20708)
Given:
The equation is
![-4x^4+36x^3-80x^2=0](https://tex.z-dn.net/?f=-4x%5E4%2B36x%5E3-80x%5E2%3D0)
To find:
The value of x.
Solution:
We have,
![-4x^4+36x^3-80x^2=0](https://tex.z-dn.net/?f=-4x%5E4%2B36x%5E3-80x%5E2%3D0)
It can be written as
![-4x^2(x^2-9x+20)=0](https://tex.z-dn.net/?f=-4x%5E2%28x%5E2-9x%2B20%29%3D0)
Splitting the middle term, we get
![-4x^2(x^2-5x-4x+20)=0](https://tex.z-dn.net/?f=-4x%5E2%28x%5E2-5x-4x%2B20%29%3D0)
![-4x^2(x(x-5)-4(x-5))=0](https://tex.z-dn.net/?f=-4x%5E2%28x%28x-5%29-4%28x-5%29%29%3D0)
![-4x^2(x-5)(x-4)=0](https://tex.z-dn.net/?f=-4x%5E2%28x-5%29%28x-4%29%3D0)
Using zero product property, we get
![x^2=0,x-5=0,x-4=0](https://tex.z-dn.net/?f=x%5E2%3D0%2Cx-5%3D0%2Cx-4%3D0)
![x=0,x=5,x=4](https://tex.z-dn.net/?f=x%3D0%2Cx%3D5%2Cx%3D4)
Therefore, the values of x are 0, 4 and 5.
Answer:
2:7 = 14:59
Step-by-step explanation:
2 + 7 = 9
63 divided by 9 = 7
Get the 2 from "2:7"
2 x 7 = 14
Get 7 from "2:7"
7 x 7 = 49