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4vir4ik [10]
3 years ago
11

Express how you know that the sum of any two consecutive triangular numbers is a square number.

Mathematics
1 answer:
maw [93]3 years ago
8 0

Answer: Beacause 2 triangles make a square

Step-by-step explanation: 2 triangles make a square so it must be the same with numbers? -an 8th grader(me) [lol i'm not that smart]

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zavuch27 [327]
Question #1 = <span>the amount of snow that falls each hour
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5 0
3 years ago
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4 times a number is decreased by 9, the result is the same as when 15 is added to twice the number. find the number
igor_vitrenko [27]

Answer:

12

Step-by-step explanation:

4*x-9=2x+15

4x-9=2x+15

-2x    -2x

2x-9=15

2x=24

x=12

5 0
2 years ago
Evaluate the function at each specified value of the independent variable and simplify. (if an answer is undefined, enter undefi
tekilochka [14]

For this case we have the following function:

h (t) = t ^ 2 - 8t

What we should do is evaluate the function for the different values of the independent variable.

We have then:

For x = 8:

h (8) = (8) ^ 2 - 8 (8)

h (8) = 64 - 64

h (8) = 0

For x = 1.8:

h (1.8) = (1.8) ^ 2 - 8 (1.8)

h (1.8) = 3.24 - 14.4

h (1.8) = -11.16

For x = x + 8:

h (x + 8) = (x + 8) ^ 2 - 8 (x + 8)

h (x + 8) = x ^ 2 + 16x + 64-8x-64

h (x + 8) = x ^ 2 + 18x

Answer:

The results of evaluating the function are:

h (8) = 0

h (1.8) = -11.16

h (x + 8) = x ^ 2 + 18x

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3 years ago
15 _2_3 = 9<br> Fill in the gaps from left to right.
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15-2x3=9 following the rule of PEMDAS
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I think 15 I am not 100 percent on that
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2 years ago
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