Answer:
x={-sqrt(103/7)+4, sqrt(103/7) +4}
Step-by-step explanation:
Subtract 7x from both sides: 7x^2-56x=-9
Divide both sides by 7: x^2-8x=-9/7
Solve for a (2ax=-8x): -4
Plug a back in: -9/7+(-4)^2=103/7
Complete the square: (x-4)^2=103/7
Therefore, x={-sqrt(103/7)+4, sqrt(103/7) +4}
<em>x=</em><em>3</em><em>0</em><em>°</em>
hopefully this answer can help you to answer the next question
Answer: 26.95 * 3 = 80.85
250/0.24 = 60
7/8 - 1/2
= 0.37
hope it helps!
He can make 20 cakes
Im in highshool so I know the answer