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3 years ago

Find the missing term in the sequence 3 ,-1 ,- 5 ____ -13a. -6b. -7c. -9d. -11

Mathematics

2 answers:

Reil [10]3 years ago

6 0

Answer:

C. -9

Step-by-step explanation:

The pattern is clearly subtracting 4 each time (or adding -4).

-5 - 4 = -9

Fofino [41]3 years ago

4 0

The answer would be c.

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2 years ago

p is a polynomial of degree 5. p has roots of multiplicity 2 at t=4 and t=0, a root of multiplicity 1 at t=-4, and p(1)=2025. Fi

DENIUS [597]

P(x) = (x^2)(x - 4)^2(x + 4) + some constant(b)
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Complete Equation:

p(x) = (x^2)(x - 4)^2(x +4) + 1980

or expanded form

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Norma-Jean [14]

Let $d$ be the common difference between terms in the sequence $\{a_n\}_{n\ge1}$ . Then

$a_{19}=-58$
$a_{20}=a_{19}+d$
$a_{21}=a_{19}+2d$
$\implies-164=-58+2d\implies d=-53$

The first term in the sequence, $a_1$ , satisfies

$a_2=a_1+d$
$a_3=a_1+2d$
$a_4=a_1+3d$
...
$a_{19}=a_1+18d$
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So the explicit formula for the $n$ -th term in the sequence is

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3 years ago

Find the missing term in the sequence 3 ,-1 ,- 5 ____ -13a. -6b. -7c. -9d. -11​

Find the missing term in the sequence 3 ,-1 ,- 5 ____ -13a. -6b. -7c. -9d. -11