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2 years ago

a jar of natural peanut butter normally costs $4.00.Today it's on sale for 3.60. What is the percentage of this discount?

Mathematics

1 answer:

Sav [38]2 years ago

8 0

Answer:

10% discount

Step-by-step explanation:

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I have more question then this

gregori [183]

Answer:

A. A reflection over the x-axis

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2 years ago

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Find the value of the integral that converges.<br> ∫^-5_-[infinity] x^-2 dx.

Bingel [31]

Answer:

$\int_{-\infty}^{-5} x^{-2}dx= \frac{1}{5} + \lim_{x\to -\infty} \frac{1}{x} =\frac{1}{5}$

Because the $\lim_{x\to -\infty} \frac{1}{x} =0$

The integral converges to $\frac{1}{5}$

Step-by-step explanation:

For this case we want to find the following integral:

$\int_{-\infty}^{-5} x^{-2}dx$

And we can solve the integral on this way:

$\int_{-\infty}^{-5} x^{-2}dx= \frac{x^{-2+1}}{-2+1} \Big|_{-\infty}^{-5}$

$\int_{-\infty}^{-5} x^{-2}dx= -\frac{1}{x} \Big|_{-\infty}^{-5}$

And if we evaluate the integral using the fundamental theorem of calculus we got:

$\int_{-\infty}^{-5} x^{-2}dx= \frac{1}{5} + \lim_{x\to -\infty} \frac{1}{x} =\frac{1}{5}$

Because the $\lim_{x\to -\infty} \frac{1}{x} =0$

The integral converges to $\frac{1}{5}$

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2 years ago

Is negative 19 a rational number

Zanzabum

Yes it’s a rational number

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2 years ago

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What are the domain and range of f(x)= (1/5)x

anyanavicka [17]

Answer:

domain and range is -∞,+∞

Step-by-step explanation:

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2 years ago

A fish dives into a depth of -3/4 mile below the surface of the water. A turtle's depth is 1/3 as deep as the fish's depth. What

Tomtit [17]

Basically you just need to multiply the two fractions together to get the depth of the turtle. Therefore the turtle is 3/12 miles deep or 1/4 mile deep.

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2 years ago