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anyanavicka [17]
3 years ago
13

A student found the volume of a rectangular pyramid with a base of 92 square meters and a height of 54 meters to be 4,968 cubic

meters.Explain and correct the error.
Mathematics
1 answer:
bagirrra123 [75]3 years ago
8 0
Dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd
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Please need help from math experts!!!! Struggling so hard…
Alenkinab [10]

Answer:

Step-by-step explanation:

A(10,10)      B(b,10b)

ax-2y=30

a)\\a(10)-2(10)=30\\10a-20=30\\10a-20+20=30+20\\10a=50

Divide both parts of the equation by 10:

a=5

Hence,

5x-2y=30

5(b)-2(10b)=30

5b-20b=30

-15b=30

Divide both parts of the equation by -15:

b=-2

Thus,

a=5     b=-2

b)\\A(10,10)\ \ \ \ \ \ B(-2,-20)\\ \displaystyle\\C(x_C,y_C)=(\frac{10+(-2)}{2} ,\frac{10+(-20)}{2} )\\\\C(x_C,y_C)=(\frac{10-2}{2},\frac{10-20}{2} )\\\\C(x_C,y_C)=(\frac{8}{2}  ,\frac{-10}{2})\\\\C(x_C,y_C)=(4,-5)\\Hence,\ C(4,-5)

5x-2y=30\\5x-2y+2y=30+2y\\5x=30+2y\\5x-30=30-30+2y\\5x-30=2y\\

Divide both parts of the equation by 2:

2.5x-15=y

c)\\y=2.5x-15

               The equation of the perpendiqular bisector

                              \boxed {y=-\frac{x}{k} +b}  

Hence,

\displaystyle\\y=-\frac{x}{2.5}-15 \\\\y=-0.4x-15

5 0
2 years ago
Solve the equation for the unknown quantity: 15.75=5(1+i)^2
tigry1 [53]
15.75=5(1+i)^2
3.15=1+i^2
2.15=i^2
i= √2.15 or approximately 1.47
7 0
3 years ago
In quadrilateral ABCD, diagonals AC And BD bisect one another
Ymorist [56]
Segment AP is congruent to segment CP. Segment BP is congruent to segment AP Sides AB and BC are congruent. Triangles BCP and CDP are congruent.
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3 years ago
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pioneers are buying mules to trek across the country. each of the 5 wagons require e mules to pull them. write the equation to e
tekilochka [14]

Answer:

d = 5e

Step-by-step explanation:

Number of wagons = 5

Number of miles per wagon = e

Total number of mules = d

Hence, relationship between total mules d needed will be ;

Total mules = number of wagons * Numbe rof mules per wagon

d = 5e

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Find x!!! pls fast !! see photo for question
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I believe that the answer would be 45

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