2 years ago

Need help please ASAP 50points!!! Show work

Mathematics

1 answer:

Andrews [41]2 years ago

5 0

Answer:

Step-by-step explanation:

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Natalija [7]

Select the second and fourth options.

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2 years ago

Under the normal curve, approximately what percent of scores fall between and -1 to +1 standard deviations around the mean?

prohojiy [21]

According to the empirical rule, roughly 68% of the scores fall between z = -1 and z = 1

You can use a calculator to get a more approximate answer. If you have a TI calculator, you can use the "normalcdf" function to type in normalcdf(-1,1)

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3 years ago

Find the equation of the line that is perpendicular to y=5 through the point (-4,-6)

Nikolay [14]

Answer:

$x=-4$

Step-by-step explanation:

we know that

The given equation y=5 is a horizontal line (is parallel to the x-axis)

The slope of the given line is equal to zero

A perpendicular line to the given line is a vertical line (parallel to the y-axis)

The equation of a vertical line is equal to the x-coordinate of the point that passes through it

The point that passes through it is (-4,-6)

therefore

The equation of the perpendicular line is

$x=-4$

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3 years ago

Simplify. 5 – [–(–2)] A. –3 B. 3 C. –7 D. 7

KatRina [158]

The answer should be B.

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3 years ago

A dealer sells an air conditioner for ruppees 23000 and earns 15% on it . Find its cost price.

earnstyle [38]

Answer:

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Step-by-step explanation:

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100%->20000

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3 years ago