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Tju [1.3M]
3 years ago
14

Find the four arithmetic means between -21 and -36.

Mathematics
1 answer:
lara31 [8.8K]3 years ago
4 0
The numbers given in the problem above are part of an arithmetic sequence with first and sixth terms equal to -21 and -36, respectively. Firstly, calculate for the common difference (d).
 
                                    d = (-36 - -21) / (6 - 1) = -3

The arithmetic mean is calculated by adding -3 to the term prior to it. 

            a2 = -21 + -3 = -24               a3 = -24 + -3 = -27
            a4 = -27 + -3 = -30               a5 = -30 + -3 = -33

Thus the four arithmetic means are -24, -27, -30, and -33.
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ValentinkaMS [17]

Answer: 54

Step-by-step explanation:

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27+15+12=

54

7 0
3 years ago
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natka813 [3]

We are given

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and we get

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=\frac{90}{5}

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T=\frac{0.25}{18}\times 3600 seconds

T=50 seconds......................Answer


6 0
3 years ago
Write an expression with a negative exponent that has a value between 0 and 1:2
Naddika [18.5K]
Edit to reflect comments:

3^-1=1/3
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7 0
3 years ago
What is the rate of change for 1
SashulF [63]

Step-by-step explanation:

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8 0
3 years ago
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SpyIntel [72]
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3 years ago
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