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3 years ago

Which inequalities are equivalent to n + 15 <22 Select three options.

Mathematics

1 answer:

vlada-n [284]3 years ago

6 0

Answer:

A, C, and D

Step-by-step explanation:

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A large company claims that the average age of their employees is 32 years, with a standard deviation of four years. The average

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The answer would be A

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3 years ago

How do you work out this math problem?? 5x-9=-3x-12+5x

ch4aika [34]

5x-9=-3x-12+5x
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3 years ago

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Finding an Equation of a Tangent Line In Exercise, find an equation of the tangent line to the graph of the function at the give

LenaWriter [7]

Answer:

Equation of tangent will be $y=\frac{x}{e}$

Step-by-step explanation:

We have given the function $y=x^2e^{-x}$

We have to find the equation of tangent at the point $(1,\frac{1}{e})$

Equation of tangent is equal to $\frac{dy}{dx}$

So $\frac{dy}{dx}=x^2\frac{d}{dx}e^{-x}+e^{-x}\frac{d}{dx}2x=-x^2e^{-x}+2e^{-x}$

Now we have given point $(1,\frac{1}{e})$

So putting these points in the equation of tangent

$\frac{dy}{dx}=-1^2e^{-1}+2e^{-1}$

$\frac{dy}{dx}=\frac{1}{e}$

Now equation of tangent passing through $(1,\frac{1}{e})$

$y-\frac{1}{e}=\frac{1}{e}(x-1)$

$y=\frac{x}{e}-\frac{1}{e}+\frac{1}{e}=\frac{x}{e}$

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3 years ago

Please help thank u

puteri [66]

Answer:

$2 {x}^{2} + 13x + 15 \\ 2 {x}^{2} + 10x + 3x + 15 \\ 2x(x + 5) + 3(x + 5) \\ (2x + 3)(x + 5)$

$5 {x}^{2} + 21x + 4 \\ 5 {x}^{2} + 20x + x + 4 \\ 5x(x + 4) + 1(x + 4) \\ (5x + 1)(x + 4) \\$

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$8 {x}^{2} + 29x - 12 \\ 8 {x}^{2} + 32x - 3x - 12 \\ 8x(x + 4) - 3(x + 4) \\ (8x - 3)(x + 4) \\ \\$

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$- 12 {x}^{2} - 35x - 18 \\ - 12 {x}^{2} - 8x - 27x- 18 \\ - 4x(3x - 2) - 9(3x - 2) \\ ( - 4x - 9)(3x - 2)$

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3 years ago

Walt has a box of 80 postage stamps. The box contains 16 stamps featuring the Bald Eagle and 40 stamps featuring the Stars and S

Anestetic [448]

Answer to this is C. 70

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3 years ago

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