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3 years ago

Find the surface area of the equilateral triangular pyramid A.720 cm B.912 cm C.1104 cm D. 1824 cm

Mathematics

1 answer:

igor_vitrenko [27]3 years ago

7 0

Answer:

What does the pyramid look like

Step-by-step explanation:

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A unit rate compares a quantity to one unit of measure. You often see the speed at which an object is traveling in terms of its unit rate.

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3 years ago

The cost of a taxi ride is a linear function of the distance traveled. If a 5-mile ride costs $12 and a 9-mile ride costs $14, w

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3 years ago

A recent report at a particular college said that 5425 students are taking math this semester, which

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Answer:

6236 students (to the nearest whole)

Step-by-step explanation:

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2 years ago

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Beatrice calculated the slope between two pairs of points.

kumpel [21]

Answer:

The answer in the procedure

Step-by-step explanation:

we know that

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

step 1

Find the slope between (-3, -2) and (1, 0)

$m=\frac{0+2}{1+3}$

$m=\frac{2}{4}=\frac{1}{2}$

Find the equation of the line

$y-y1=m(x-x1)$

with m and the point (1,0)

substitute

$y-0=\frac{1}{2}(x-1)$

$y=\frac{1}{2}x-\frac{1}{2}$

step 2

Find the slope between (-2, -1) and (4, 2)

$m=\frac{2+1}{4+2}$

$m=\frac{3}{6}=\frac{1}{2}$

Find the equation of the line

$y-y1=m(x-x1)$

with m and the point (4,2)

substitute

$y-2=\frac{1}{2}(x-4)$

$y=\frac{1}{2}x-2+2$

$y=\frac{1}{2}x$

<em>Compare the equation of the two lines</em>

The two lines are parallel, because their slope is the same, but are different lines

therefore

Beatrice's conclusion is incorrect

All of these points are not on the same line, because are different parallel lines

The slope between (-2,-1) and (1,0) is equal to $\frac{1}{2}$

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4 years ago

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