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3 years ago

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:

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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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

Solve for,

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Solve for,

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That is, (x - 6)

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

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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 ~

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

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

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2 years ago

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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))

f(x^2+8)

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

f(g(x))

f(x^2+8)

2(x^2+8)+5

Distribute:

f(g(x))

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3 years ago

Distance between (-6,-7) and (-4,-1)

kirill115 [55]

Answer:

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Step-by-step explanation:

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3 years ago

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

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