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3 years ago

7

B 47° F G A C 20 J H Н

1 answer:

podryga [215]3 years ago

8 0

Answer:

FGAC ‎20 ‎JH ‎Н

Step-by-step explanation:

FGAC ‎20 ‎JH ‎Н

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A diver is 19 meters below the surface of the water. Use an integer to represent how far the diver will need to travel to reach

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Since the diver is 19 metres below the surface of the water, then he will need to travel 19 metres to reach the surface.

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Need help with number 3 inequalities with variables on both sides

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Answer:

x ≤ 2

Step-by-step explanation:

We are given the inequality:

$\displaystyle{2x-3 \leq \dfrac{x}{2}}$

First, get rid of the denominator by multiplying both sides by 2:

$\displaystyle{2x\cdot 2-3\cdot 2 \leq \dfrac{x}{2}\cdot 2}\\\\\displaystyle{4x-6 \leq x}$

Add both sides by 6 then subtract both sides by x:

$\displaystyle{4x-6+6 \leq x+6}\\\\\displaystyle{4x \leq x+6}\\\\\displaystyle{4x-x \leq x+6-x}\\\\\displaystyle{4x-x \leq 6}\\\\\displaystyle{3x \leq 6}$

Then divide both sides by 3:

$\displaystyle{\dfrac{3x}{3} \leq \dfrac{6}{3}}\\\\\displaystyle{x \leq 2}$

Therefore, the answer is x ≤ 2

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2 years ago

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webassign If a snowball melts so that its surface area decreases at a rate of 6 cm2/min, find the rate at which the diameter dec

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Answer:

The answer is $\frac{3}{10\pi } cm/min$

Step-by-step explanation:

Assuming the snowball is a perfect sphere, then if A denotes the surface area and D the diameter then:

$A=4\pi r^{2} = 4\pi (\frac{D}{2} )^{2} =\pi D^{2}$

Differentiating wrt r we have:

$\frac{dA}{dD} =2\pi D$

We are told that $\frac{dA}{dt}= -6$ and we want to find $\frac{dD}{dt}$

By the chain rule we have:

$\frac{dA}{dD}=\frac{dA}{dt}.\frac{dt}{dD}=\frac{\frac{dA}{dt} }{\frac{dD}{dt} }$

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∴ $\frac{dD}{dt}=-\frac{6}{2\pi D}$

When D=10 then

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The sign (-) shows that the D is decreasing.

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3 years ago

Two urns contain white balls and yellow balls. The first urn contains 2 white balls and 7 yellow balls and the second urn contai

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Your anwser is going to be b.5/22

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swat32

Answer:

$x-intercept=\frac{9}{4}$

$y-intercept=-18$

Step-by-step explanation:

The y-intercept is where x is equal to 0, and the x-intercept is where y is equal to 0, so:

$x-intercept=(x,0)\\y-intercept=(0,y)$

The equation is written in slope-intercept form:

$y=mx+b$

m is the slope and b is the y-intercept, so the y-intercept is -18.

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:Done

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