2 years ago

Using the graphing function on your calculator, find the solution to the system

Mathematics

2 answers:

Mariulka [41]2 years ago

5 0

Answer: The correct answer is: x = 13/12, y= -3/4

Step-by-step explanation:

inessss [21]2 years ago

4 0

This is all I got sorry if it don’t help

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Step-by-step explanation:

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3 years ago

(a) Find a 90% confidence interval for the population mean price (per 100 pounds) that farmers in this region get for their wate

Anon25 [30]

Answer:

The margin of error (E) $=0.49$

Step-by-step explanation:

Given,

mean $\bar{x}=6.88$

standard deviation $\sigma=1.90$

sample size $n=41$

$90\% \quad \text{confidence interval}$

Critical value $=\frac{z_\alpha}{2}\quad \quad\quad[\because\;\alpha=1-\text{confidence interval}]$

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$=0.49$

Hence, The margin of error (E) $=0.49$

Complete question is attached in below.

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3 years ago

The sales tax for an item was $24.50 and it cost $350 before tax. Find the sales tax rate.

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Find the number that when multiplied with 350 will give you 24.5. This number happens to be .07 or in terms of sales tax, 7%.

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Step-by-step explanation:

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3 years ago

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