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Makovka662 [10]

3 years ago

10

There are 40 markers in a bag. Of the 10 scented markers, 6 are permanent markers. Half of the unscented markers are erasable.

1 answer:

Mice21 [21]3 years ago

3 0

For this case we have:
10 scented markers: Column 1, row 3.
6 are permanent markers: Column 1, row 1
Half of the unscented markers are erasable: (1/2) * 30 = 15 Column 2, row 2.
Therefore, the selected table corresponds to the attached image.
Answer:
See attached image.

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Given that ABC DEF, what is the measure of E?

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3 years ago

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Write down an (in)equality which describes the solid ball of radius 3 centered at (7,1,−1). It should have a form like x2+y2+(z−

masya89 [10]

Answer:

$(x-7)^2+(y-1)^2+(z+1)^2-9\le 0$

Step-by-step explanation:

A ball is the solid inside a surface which is a sphere.

The equation of a sphere has the form:

$(x-h)^2+(y-k)^2+(z-s)^2= r^2$

Where (h,k,s) is the center and r is the radius.

When we plug the given center (7,1,-1) and radius 3 we get:

$(x-7)^2+(y-1)^2+(z+1)^2= 3^2$

Then we turn this into an inequality: Since the ball is inside the surface we must use the $\le$ symbol.

$(x-7)^2+(y-1)^2+(z+1)^2\le 9$

Then we just subtract 9 from both sides to get:

$(x-7)^2+(y-1)^2+(z+1)^2-9\le 0$

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3 years ago

Question in screen shot

Oksi-84 [34.3K]

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88 feet/second = 60 miles/hour. How many feet per second is 1 mile? (Hint: divide both side of the equation by the same amount.)

zalisa [80]

Answer:

1 mile/hour is equivalent to 1.47 feet/seconds

Step-by-step explanation:

Given

$88 ft/s= 60 miles/hr$

Required

Determine the equivalent of 1 mile/hour

$88\ ft/s= 60\ miles/hr$

Express 60 as 60 * 1

$88\ ft/s= 60 * 1\ mile/hr$

Divide both sides by 60

$\frac{88\ ft/s}{60}= \frac{60 * 1\ mile/hr}{60}$

$\frac{88\ ft/s}{60}= 1\ mile/hr$

Reorder

$1\ mile/hr = \frac{88\ ft/s}{60}$

Divide 88 by 60

$1\ mile/hr = 1.46666666667\ ft/s$

Approximate to 3 significant figures

$1\ mile/hr = 1.47\ ft/s$

Hence;

1 mile/hour is equivalent to 1.47 feet/seconds

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Answer:

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Step-by-step explanation:

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