Answer:
2/5 cups
Step-by-step explanation:
(3/4)*8=6
6/15= 2/5
![\huge \boxed{\mathfrak{Question} \downarrow}](https://tex.z-dn.net/?f=%20%5Chuge%20%5Cboxed%7B%5Cmathfrak%7BQuestion%7D%20%5Cdownarrow%7D)
- Simplify the expression ⇨ 4(3z+9)-(5z+7)
![\large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}](https://tex.z-dn.net/?f=%20%5Clarge%20%5Cboxed%7B%5Cmathfrak%7BAnswer%20%5C%3A%20with%20%5C%3A%20Explanation%7D%20%5Cdownarrow%7D)
![4 \sf \left( 3z+9 \right) -(5z+7)](https://tex.z-dn.net/?f=4%20%5Csf%20%5Cleft%28%203z%2B9%20%20%5Cright%29%20%20-%285z%2B7%29)
Use the distributive property to multiply 4 by 3z+9.
![\sf12z+36-\left(5z+7\right)](https://tex.z-dn.net/?f=%20%5Csf12z%2B36-%5Cleft%285z%2B7%5Cright%29%20)
Remove the brackets of 5z + 7 & put the subtraction symbol (minus) accordingly.
![\sf12z+36-5z-7](https://tex.z-dn.net/?f=%20%5Csf12z%2B36-5z-7%20)
Combine 12z and -5z to get 7z.
![\sf7z+36-7](https://tex.z-dn.net/?f=%20%5Csf7z%2B36-7%20)
Subtract 7 from 36 to get 29.
![\boxed{ \boxed{\bf7z+29 }}](https://tex.z-dn.net/?f=%20%5Cboxed%7B%20%20%5Cboxed%7B%5Cbf7z%2B29%20%7D%7D)
9514 1404 393
Answer:
a) correct
b) needs parentheses: -1, (1±i√2)/3
Step-by-step explanation:
a) You can factor by grouping:
(x³ -2x²) -(5x -10) = x²(x -2) -5(x -2) = (x² -5)(x -2)
Roots are ±√5, 2.
__
b) The sum of odd-degree coefficients is equal to the sum of even-degree coefficients (3-1 = 1+1), so one root is x=-1. Factoring out that leaves the quadratic factor ...
3x³ +x² -x +1 = (x +1)(3x² -2x +1)
The quadratic formula can be used on the quadratic factor to find its roots:
x = (-(-2) ±√((-2)²-4(3)(1)))/(2(3)) = (2 ±√-8)/6 = (1 ±√-2)/3
Roots are -1, (1 ±i√2)/3.
Answer:
missing info / cannot solve without the info needed
Step-by-step explanation:
Answer:
(−2,1)(-2,1)
x=−2,y=1
Step-by-step explanation:
Tell me if it's correct