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finlep [7]
3 years ago
10

Explicit equation for 5,10,20,40

Mathematics
1 answer:
eduard3 years ago
3 0

Answer:

see explanation

Step-by-step explanation:

These are the terms of a geometric sequence with n th term

a_{n} = a(r)^{n-1}

Where a is the first term and r the common ratio

r = \frac{10}{5} = \frac{20}{10} = \frac{40}{20} = 2

and a = 5, hence explicit equation is

a_{n} = 5(2)^{n-1}

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Nth term fo 3,11,25,45
alexandr1967 [171]
I think the answer may be 291
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3 years ago
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Parellel lines it says 75 degrees and on another line it says 11x-2 what's the answer?
likoan [24]

Answer:

x = 7

Step-by-step explanation:

Parallel lines so their the same

11x - 2 = 75

add 2 to both sides

11x = 77

divide both signs with 11

x = 7

8 0
3 years ago
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What is the standard form of g(x) = (-x-4)(x-3)
Anni [7]

Answer:

g(x) = - x² - x + 12

Step-by-step explanation:

Given

g(x) = (- x - 4)(x - 3)

Each term in the second factor is multiplied by each term in the first factor, that is

- x(x - 3) - 4(x - 3) ← distribute both parenthesis

= - x² + 3x - 4x + 12 ← collect like terms

= - x² - x + 12 ← in standard form

8 0
3 years ago
Find all the zeros of the polynomial 2x4 - 9x3 + 5x2 + 3x -1, if two of its zeros are ( 2 +√ ) and (2 - √ ) .
elena-s [515]

Answer:

x=-\frac{1}{2} , 1, (2+\sqrt{3} ), (2-\sqrt{3} )

Hope this helps!

8 0
3 years ago
Is the simplified form of 2-3 + 3.3 rational?<br> Yes<br> No
N76 [4]

Answer:

YES IT IS

Step-by-step explanation:

2-3 + 3.3

= -1 + 3.3

= -4.3

We learn that:

Rational number: rational number is the number that can be written as a/b (a and b would be intergers and b is not equal to 0). Rational number would be most of numbers we use in out life, except Square root and Pi number.

In this case, -4.3 can be write as -43/10

So YES it would be a rational number

Hope this helped :3

6 0
4 years ago
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