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LenaWriter [7]
3 years ago
10

What is the volume of the pyramid? 8 in. 7 in. 6in.

Mathematics
1 answer:
Salsk061 [2.6K]3 years ago
7 0

Answer:

112

Step-by-step explanation:

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Determine the solution x^2 - 3x -28 ≥ 0
IgorC [24]

x^2 - 3x -28 ≥ 0

factor

(x-7) (x+4) ≥ 0

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we have three regions where the answers can lie

x<-4  between -4 and 7  and x>7

pick a point and see if it works

x=-10

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negative * negative  is greater than 0 so this is a solution   x< -4

x=0

(0-7) (+4) ≥ 0

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x=10

(10-7) (10+4) ≥ 0

positive * positive is greater than 0 so this is a solution   x>7

We have two regions that work

x<-4 and x>7




4 0
3 years ago
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Baby Rachel wants to arrange 12 blocks in a row. How many different arrangements can she make
Nataly_w [17]

Answer:

479,001,600 different arrangements

Step-by-step explanation:

6 0
3 years ago
How does the shape of a cross-section of a 3D figure parallel to the base relate to the volume of the 3D figure?
Ket [755]

Answer:

The shape of each cross-section of a 3D figure,  relates to the volume because the area of the cross-section is determined by its shape and the area of this cross section is in the sum that calculates the volume of this 3D figure.

Step-by-step explanation:

An infinite sum of all the all the cross-sections of a 3D figure parallel to the base equals the volume of that 3D figure.

3 0
3 years ago
Help me, please ...i dont understand
BARSIC [14]
C. Use the formula for area of a triangle 1/2(Base * Height). Using that we see that we have 1/2(a*b) + 1/2(c*c) + 1/2(a*b). Cleaning this up we get 1/2(2ab+c^2)
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Answer:

Well, it's the perimeter, so...40.

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P = 2L+2W

or you can factor it out.

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3 years ago
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