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3 years ago

A pyramid has a surface area of 24 m^2.

Mathematics

1 answer:

Yuliya22 [10]3 years ago

7 0

Answer:

The replicas will have a surface area of 3 m2, 2.4 m2 and 2 m2.

Step-by-step explanation:

You would have to multiply:

24 x 1/8 = 3

24 x 1/10 = 2.4

24 x 1/12 = 2

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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

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

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

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

Compare the equation of the two lines

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 $\frac{1}{2}$

8 0

4 years ago

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Lindsay makes a list of what she needs and looks on the Internet for the best prices. Is Lindsay following tips for spending wis

Margaret [11]

Yes if she does the right research

3 0

4 years ago

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Factor the four-term polynomial by grouping 3x-3+x^3-4x^2

yaroslaw [1]

(x4−3x3+4x2−8)/(x+1) = x3−4x2+8x−8.

6 0

4 years ago

Which is true about the slope of a line?

Inessa05 [86]

Answer:

Step-by-step explanation:

The slope of all lines in quadrant 1 is positive. FALSE

The slope of a line does not depend on the quadrant.

The slope of all lines that pass through the origin is undefined.FALSE

The slope of some lines that pass trough the origin are undefined ( lines that are vertical have undefined slope)

The larger the slope, the longer the line.FALSE

The lines do not get longer or shorter because they go to infinity in both directions.

The larger the magnitude of the slope value, the steeper the line. TRUE

The larger the absolute value of the slope the steeper the slope.

4 0

3 years ago

Solve x2 + 14x + 17 = –96 for x.

kolbaska11 [484]

Hi there,

2 + 14x + 17 = -96
19 + 14x = -96
14x = -96 - 19
14x = -115

Hence, X = 8.21429
X = -115/14
X = -8 3/14

Hope this helps :)

4 0

3 years ago

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