10. Solve the following pair of simultaneous equations 2 + x = y xy = 5. 1 Add file

Mathematics

1 answer:

matrenka [14]2 years ago

8 0

x = 5 and y = 3. That is the answer

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Find Each Difference. 1) 2-(-2)= 2) (-1)-10= 3) 8-7= 4) (-8)-(-6)

Afina-wow [57]

Answer:

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2) -11

3) 1

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Step-by-step explanation:

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3 years ago

A new catalyst is being investigated for use in the production of a plastic chemical. Ten batches of the chemical are produced.

zzz [600]

Answer:

$CI=(66.54,78.46)$

Step-by-step explanation:

Given : A new catalyst is being investigated for use in the production of a plastic chemical. Ten batches of the chemical are produced. The mean yield of the 10 batches is 72.5% and the standard deviation is 5.8%. Assume the yields are independent and approximately normally distributed.

To find : A 99% confidence interval for the mean yield when the new catalyst is used ?

Solution :

Let X be the yield of the batches.

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