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goblinko [34]
3 years ago
11

Can anyone please help me with these math problems please

Mathematics
2 answers:
vodomira [7]3 years ago
8 0
Question 2 is 7.5

Question 3 is B and C.

Points are for asking your own questions and for getting higher ranks.
liraira [26]3 years ago
3 0
2. 7.5 because 12/5= 7.5
3. B and C
x   a.doesnt make sense because 18/3 does not equal to 16. it equals to 6 not 16
√  b. 3²=3x3=9
√  c. 5x3=15
x   d. 2(2+3)=10 not 12
           2(5)
            10
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Step-by-step explanation:

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The sum of the first ten terms of a linear sequence is 145. the sum of the next ten term is 445. find the sum of the first four
chubhunter [2.5K]

The sum of the first four terms of the sequence is 22.

In this question,

The formula of sum of linear sequence is

S_n =\frac{n}{2}(2a+(n-1)d)

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⇒ S_{10} =\frac{10}{2}(2a+(10-1)d)

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The sum of the next ten term is 445, so the sum of first twenty terms is

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Learn more about sum of sequence of n terms here

brainly.com/question/20385181

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