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S_A_V [24]
2 years ago
14

Evaluate the expression. 34 -8 - 14 + 2 + 5​

Mathematics
1 answer:
IceJOKER [234]2 years ago
5 0

Answer:

            About 20

           {19 exactly}

Step-by-step explanation:

Evaluate means find approximate value without exact calculation (usually done with great numbers or with fractions)

-8 is approximately -(2+5) so the sum is about 0

34-14 = 30-10 = 20

20 + 0 = 0

The exact calculation would be:

34 -8 - 14 + 2 + 5 = 34 - 14 - 8 + 7 = 20 - 1 = 19

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The side length of the square base is 18 inches and the height of the pyramid is 9 inches.

Step-by-step explanation:

Step 1:

The volume of a square pyramid is calculated by multiplying the square of the base edge with the height of the pyramid and \frac{1}{3}.

The volume of a square pyramid, V = a^{2} \frac{h}{3}.

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From the given diagram, the base edge is the length of the four base edges which is x inches in this pyramid. a = x inches.

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4 0
3 years ago
What is the least common multiple (LCM) of 4 and 15? A. 19 B. 20 C. 60 D. 30
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Answer:

C

Step-by-step explanation:

Multiples of 4: 4,8,16,20,24,28,32,36,40,44,48,52,56,60

Multiples of 15: 15,30,45,60

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