The error is in the first step. It should be (+8 plus or minus the square root of the quantity eight squared minus four times one times seven ). This is because "b" is -8 so -b is -(-8) = +8
For the table, y = 9x.
so the price of a short cake is $9
For the graph, y = 4x
so the price of a sweet bread is $4
9-4 = 5
the short cake is $5 more than the sweet bread
Answer:
![x\sqrt[7]{x^{2} }](https://tex.z-dn.net/?f=x%5Csqrt%5B7%5D%7Bx%5E%7B2%7D%20%7D)
(D)
Step-by-step explanation:
Given: 
To find: Simplify the given expression
Solution: Simplyfying, we get,
![=x^{1} *x^{\frac{2}{7} } \\=x*x^{\frac{2}{7} } \\=x=\sqrt[7]{x^{2} }](https://tex.z-dn.net/?f=%3Dx%5E%7B1%7D%20%2Ax%5E%7B%5Cfrac%7B2%7D%7B7%7D%20%7D%20%5C%5C%3Dx%2Ax%5E%7B%5Cfrac%7B2%7D%7B7%7D%20%7D%20%5C%5C%3Dx%3D%5Csqrt%5B7%5D%7Bx%5E%7B2%7D%20%7D)
Therefore, 
can be written as
Answer:
Step-by-step explanation:
<u>Variable: </u>
<u>Equation:</u>
<u>Solution:</u>
- 5(3p + 0.97) = 12.89
- 15p + 4.85 = 12.89
- 15p = 12.89 - 4.85
- 15p = 8.04
- p = 8.04 / 15
- p = 0.536
Answer:
True
Step-by-step explanation:
· 10 = 30
30 = (3 · 5) + (3 · 5)
30 = (15) + (15)
30 = 30
True
