3 years ago

For exercises 73-76,give the fraction listed that is nearest on the number line to that decimal

Mathematics

1 answer:

Arturiano [62]3 years ago

3 0

Answer:

-3

Step-by-step explanation:

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A 5-meter ladder is leaning against the side of a house. The foot of the ladder is pulled away from the house at a rate of 0.4 m

Flura [38]

<h2>The top of the ladder is descending at 0.3 m/s.</h2>

Step-by-step explanation:

By Pythagoras theorem we know that

Hypotenuse² = Base² + Perpendicular²

h² = b² + p²

We have for ladder

h = 5 m

b = 3 m

5² = 3² + p²

p = 4 m

$\frac{db}{dt}=0.4m/s\\\\\frac{dh}{dt}=0$

Differentiating h² = b² + p² with respect to time

$2h\times \frac{dh}{dt}=2b\times \frac{db}{dt}+2p\times \frac{dp}{dt}\\\\5\times 0=3\times 0.4+4\times \frac{dp}{dt}\\\\\frac{dp}{dt}=-0.3m/s$

The top of the ladder is descending at 0.3 m/s.

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2 years ago

Find the inverse of f(x)= x-3/2<br> i dont understand this

CaHeK987 [17]

Answer:

the correct answer is shown below

Step-by-step explanation:

hope this helps

8 0

2 years ago

What numbers would you multiply -3/4 by to equal 1?

Sonja [21]

You would multiply by -4/3. That's cuz to get to 1, you have to cancel out the negative, with another negative. You then have to multiply by the reciprocal.

Hope this helps!

7 0

3 years ago

What is the sign of -4-8

dusya [7]

Answer:

The sign should be negative ( - )!

Step-by-step explanation:

-4 - 8 = -12

Please mark Brainliest!!! =D

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3 years ago

A small school with 606060 total students records how many of their students attend school on each of the 180180180 days in a sc

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Answer:

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Step-by-step explanation:

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3 years ago

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