If x=1 y= -1, a= -2, b=3, then value of ax+by is_____

Mathematics

2 answers:

Thepotemich [5.8K]3 years ago

4 0

Answer:

- 5

Step-by-step explanation:

Substitute the given values into the expression

ax + by

= (- 2 × 1) + (3 × - 1)

= - 2 + (- 3)

= - 2 - 3

= - 5

Maksim231197 [3]3 years ago

3 0

Answer:

-5

Step-by-step explanation:

ax= -2(1)= -2

by= 3(-1)= -3

ax+by=-2+-3=-5

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Answer:

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Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

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The confidence interval for the mean is given by the following formula:

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