Answer:
Step-by-step explanation:
số nữ là 65- 35= 30
vậy tỷ lệ số tv nữ trên tổng số thành viên của phòng tập là 30/65 = 6/13
Answer:
4th answer
Step-by-step explanation:
g(h(x)) means to put the formula for h(x) into the formula for g( ).
![g(h(x))=g(2x-2)=-3(2x-2)^3-2(2x-2)^2\\=-3(8x^3-24x^2+24x-8)-2(4x^2-8x+4)\\=-24x^3+72x^2-72x+24-8x^2+16x-8\\=-24x^3+64x^2-56x+16](https://tex.z-dn.net/?f=g%28h%28x%29%29%3Dg%282x-2%29%3D-3%282x-2%29%5E3-2%282x-2%29%5E2%5C%5C%3D-3%288x%5E3-24x%5E2%2B24x-8%29-2%284x%5E2-8x%2B4%29%5C%5C%3D-24x%5E3%2B72x%5E2-72x%2B24-8x%5E2%2B16x-8%5C%5C%3D-24x%5E3%2B64x%5E2-56x%2B16)
Cubing the binomial 2x - 2 can take some time!
x-10=x/2
Simplify both sides of the equation.
x−10 = x
/2
x+-10 = 1/2 x
x-10 = 1/2 x
Subtract 1/2 x from both sides.
x-10-1/2 x = 1/2 x - 1/2 x
1/2 x-10 = 0
Add 10 to both sides.
1/2 x-10+10 = 0+10
1/2 x = 10
Multiply both sides by 2.
2*(1/2 x) = (2)*(10)
Your answer should be: x = 20
Answer:
c
Step-by-step explanation: