3 years ago

Can you round 691 to 1 significant number

Mathematics

1 answer:

a_sh-v [17]3 years ago

5 0

Answer:

yes its 700

Step-by-step explanation:

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four sisters bought a present for their grandfather that cost each sister $8. they recieved a 20% discount how much was the orig

Westkost [7]

8x4=$32
80%-$32
100%= 32/80 x 100 = $40

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4 years ago

How do you determine where f(x)=cos^(-1)(lnx) is continuous?

olga nikolaevna [1]

$\ln x$ is continuous over its domain, all real $x>0$ .

Meanwhile, $\cos^{-1}y$ is defined for real $-1\le y\le1$ .

If $y=\ln x$ , then we have $-1\le \ln x\le1\implies \dfrac1e\le x\le e$ as the domain of $\cos^{-1}(\ln x)$ .

We know that if $f$ and $g$ are continuous functions, then so is the composite function $f\circ g$ .

Both $\cos^{-1}y$ and $\ln x$ are continuous on their domains (excluding the endpoints in the case of $\cos^{-1}y$ ), which means $\cos^{-1}(\ln x)$ is continuous over $\dfrac1e$ .

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3 years ago

kurt swims 575 yards at each swim practice. if he practices monday wensday and friday about how may yards will he swim in a wek

Mashcka [7]

1,725 yards, because 575×3=1,725. Or 575+575+575=1,725

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3 years ago

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Two cylinders have the same size base, but one is twice as tall. Explain why the taller cylinder does not have double the surfac

Igoryamba

Answer:

The surface area of a cylinder is the sum of the areas of the two bases and the area of the lateral surface. If the height of the cylinder is doubled, the area of the lateral surface is doubled, but the areas of the bases remain the same.

Step-by-step explanation:

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4 years ago

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Write the domain and range of the given figure.

Whitepunk [10]

Domain x < or equal to 5
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