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LekaFEV [45]
3 years ago
7

What is a38 of the sequence -1, 1, 3, 5, 7​

Mathematics
1 answer:
Olegator [25]3 years ago
4 0
The pattern is 2n-3, where n is the number of the term. therefore, a38 of the sequence would be 2(38)-3, or 73.
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anzhelika [568]

Answer:

0

Step-by-step explanation:

9^2 * (1/3)^2 -9

PEMDAS says powers first

81 * 1/9 -9

Then multiply

9 -9

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0

6 0
3 years ago
Factor complete −2x2 + 10x.
mezya [45]

The factors of the quadratic equation is (x + 1) and (x - 6)

Given,

The quadratic equation; -2x² + 10x + 12

We have to find the factors of this equation using quadratic formula;-

Quadratic formula;- \frac{-b(+-)\sqrt{b^{2} -4ac} }{2a}

Here,

a = -2, b = 10 and c = 12

Now,

\frac{-b(+-)\sqrt{b^{2} -4ac} }{2a} = \frac{-10(+-)\sqrt{10^{2} -4 . -2. 12} }{2.-2} = \frac{-10(+-)\sqrt{100 +96} }{-4} = (-10±14) ÷ -4

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That is, (x + 1)

Solve for,

- 10 - 14 / -4 = -24/-4 = 6

That is,  (x - 6)

Therefore, the factors for the given quadratic equation is (x + 1) and (x - 6)

Learn more about quadratic formula here;

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6 0
1 year ago
Add x^3 - 4x^2 + 1 to 3x^2 + x <br> Show Your work!
Sladkaya [172]

\qquad \qquad\huge \underline{\boxed{\sf Answer}}

Let's solve ~

\qquad \sf  \dashrightarrow \: (x {}^{3}  - 4x {}^{2}  + 1) + (3 {x}^{2}  + x)

\qquad \sf  \dashrightarrow \:  {x}^{3}  - 4 {x}^{2}  + 1 + 3 {x}^{2}  + x

\qquad \sf  \dashrightarrow \:  {x}^{3}  - 4 {x}^{2}  + 3x {}^{2}  + x + 1

\qquad \sf  \dashrightarrow \:  {x}^{3}  -  {x}^{2}  + x + 1

6 0
2 years ago
Given the functions f(x) = 2x + 5 and g(x) = x2 + 8, which of the following functions represents f(g(x)] correctly?
lakkis [162]

Answer:

Choice 4.

Step-by-step explanation:

f(g(x))

Replace g(x) with x^2+8 since g(x)=x^2+8.

f(g(x))

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Replace old input,x, in f with new input, (x^2+8).

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2(x^2+8)+5

Distribute:

f(g(x))

f(x^2+8)

2(x^2+8)+5

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Combine like terms:

f(g(x))

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2(x^2+8)+5

2x^2+16+5

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3 years ago
Distance between (-6,-7) and (-4,-1)
kirill115 [55]

Answer:

i believe it is (3,6) im not 100% sure though

Step-by-step explanation:

4 0
3 years ago
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