Answer for brainliest

This isn't an equation, so you cannot "solve for x."  However, you can factor, as follows:

y = 2(x^2-49) = 2(x-7)(x+7)

If you decide to set this = to zero, then you can solve for x:  {-7, 7}.

The Z-value for a 90 percent confidence is 1.645

To find the sample size use the formula:

Sample size = Z-value x SD / error)^2

Using the provided information:

SD = 4,000 miles

Error = 500 miles

Sample size = ((1.645) (4000)/ 500)^2 = 173.18 = 174

Answer:

Step-by-step explanation:

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Answer:

Hey there!

Part a) Distance from Wrexham to Oswetry: 15 miles.

Part b) Ruthin to Oswestry: 33 miles.

Total distance travelled for Part b= 33(5), or 165 miles.

Answer:

76.505

Step-by-step explanation:

price after the discount

110 × (35/100) = 38.5

110 - 38.5 = 61.5

price after tax

61.5 × 1.07 = 76.505