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1 year ago

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the sum of the first four terms of an A.p is 62.if the difference between 4 terms and 2nd terms is 14. find the first term and c

ommon difference

1 answer:

Oksana_A [137]1 year ago

3 0

Answer:

-2 -4 -6 -8

Step-by-step explanation:

I got the answer off of khan academy

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Which number line model represents the expression 3.5+(-5)

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the volume of a large sphere (of radius R) is twice the volume of a smaller sphere (of radius r). form an equation linking r and

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Step-by-step explanation:

radius of large sphere is R,

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2 years ago

The square of a positive number is equal to its triple added to 28. What is this number?

sashaice [31]

hi brainly user! ૮₍ ˃ ⤙ ˂ ₎ა

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$\huge{ \rm{Answer:}}$

The roots of the equation are 7 and -4, because 7 - 4 = 3 and 7. - 4 = -28

Step-by-step explanation:

The positive number is equal to 7.

Assuming that the number is equal to "x" we have:

$\begin{gathered}x^2 = 3x + 28\\\\x^2 - 3x - 28 = 0\\\\a = 1\\\\b = -3\\\\c = -28\\\end{gathered}$

By the sum and product method, we have:

$\begin{gathered}S = -b / a\\\\S = -(-3) / 1\\\\S = 3\\\\\end{gathered}$

$\begin{gathered}P= c / a\\\\P = 28 / 1\\\\P = 28\\\\\end{gathered}$

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1 year ago

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Step-by-step explanation:

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2 years ago